Where more than one page reference is given, the major reference is first.
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 1 2
| A, accumulator symbol | 30 | ||
| A instruction | 51 | ||
| ABL, enable, indicator | 122 | ||
| AC indicator | 122 | ||
| access mechanism | |||
| single disk storage drives | 129 | ||
| 2311 Disk Storage Drives | 131 | ||
| access time | |||
| single disk storage drives | 129 | ||
| 2311 Disk Storage Drives | 131 | ||
| accumulator (ACC) | 20 | ||
| accumulator extension (Q) | 20 | ||
| accumulator extension indicator | 122 | ||
| accumulator indicator | 121 | ||
| AD instruction | 53 | ||
| add double instruction | 53 | ||
| ADD indicator | 122 | ||
| add instruction | 51 | ||
| address, direct | 14, 16 | ||
| address displacement (2250) | 166 | ||
| address, effective, generation | 10 | ||
| address field (in instruction) | 14 | ||
| address field (IOCC) | 101 | ||
| address, generation, exceptions | 18 | ||
| address generation (long instruction) | 14 | ||
| address, indirect, bit | 11 | ||
| address (instruction register specified) | 10 | ||
| addresses (core storage) | 8 | ||
| addressing, instruction, summary | 16, 17 | ||
| AFR (arithmetic factor register) | 24 | ||
| alarm on/off switch | 125 | ||
| alphabetic coding (1231) | 157 | ||
| alphameric keyboard (2250) | 163 | ||
| AND, logical, instruction | 67 | ||
| Appendix A. Character Codes | 192 | ||
| applications and programming | 1 | ||
| area code (IOCC) | 102 | ||
| arithmetic factor indicator | 121 | ||
| arithmetic-factor register (AFR) | 24 | ||
| arithmetic instructions | 51 | ||
| AS indicator | 122 | ||
| assembler | 1 | ||
| backspace key (console keyboard) | 119 | ||
| baud | 172 | ||
| BFR (buffer loaded) indicator | 122 | ||
| binary synchronous communications (BSC) | 171 | ||
| bit, sign (in a word) | 5 | ||
| bit transfer sequence | 173 | ||
| blank detection (1231) | 157 | ||
| block check characters (BSC) | 179 | ||
| BOSC (in interrupts) | 110 | ||
| BOSC instruction | 90 | ||
| branch (forced CPU, interrupt) | 104 | ||
| branch and store instruction address register | 94 | ||
| branch instructions | 90 | ||
| branch or skip on condition | 90 | ||
| BSC | |||
| instruction | 90 | ||
| operation | 177 | ||
| special programming | 179 | ||
| BSI instruction | 94 | ||
| buffer (1231) | 155 | ||
| buffer loaded (BFR) indicator | 122 | ||
| busy | |||
| single disk storage drives | 133 | ||
| 1231 | 161 | ||
| 1442 | 139 | ||
| 1627 | 153 | ||
| 2250 | 166 | ||
| 2311 Disk Storage Drives | 131 | ||
| 2501 | 141 | ||
| capacity | |||
| core storage | 8 | ||
| single disk storage drives | 2, 127 | ||
| 2311 Disk Storage Drives | 2, 127 | ||
| card feeding | |||
| 1442 | 136 | ||
| 2501 | 140 | ||
| card input/output devices | 135 | ||
| card, last, sequence (1442) | 137 | ||
| card/paper tape programming system | 1 | ||
| card punching (1442) | 137 | ||
| card read punch | 135 | ||
| card reader (2501) | 140 | ||
| card reading | |||
| 1442 | 136 | ||
| 2501 | 140 | ||
| card throughput (2501) | 141 | ||
| cards per minute (1442) | 135 | ||
| carriage | 152 | ||
| carriage busy | |||
| 1132 | 148 | ||
| 1403 | 151 | ||
| carriage channel (1403) | 151 | ||
| carriage channel 12 (1403) | 151 | ||
| carriage control channels (1132) | 148 | ||
| carriage home (disk) | 129 | ||
| carriage interrupt (1403) | 150 | ||
| carriage skipping | |||
| 1132 | 146 | ||
| 1403 | 149 | ||
| carriage spacing | |||
| 1132 | 146 | ||
| 1403 | 149 | ||
| carry and overflow indicators | 22 | ||
| carry indicator (set for reset by LDS) | 49 | ||
| cartridge, disk | 2, 127 | ||
| case, upper (console printer) | 116 | ||
| cause of interrupt | 109 | ||
| CCC (cycle control counter) | 24 | ||
| central processing unit and core storage | 2 | ||
| CES (console entry switches) | 124 | ||
| chain, print (1403) | 149 | ||
| channel interface (2250) | 163 | ||
| channel, storage access (SAC) | 168 | ||
| channel, tape (1403) | 149 | ||
| channels, carriage control (1132) | 148 | ||
| character code (paper tape) | 143 | ||
| character codes | 7, 192 | ||
| character mode (2250) | 163, 166 | ||
| character phase (CP) indicator | 122 | ||
| character-synchronous | 173 | ||
| characteristics of CPU | 4 | ||
| characters | |||
| control (BSC) | 177 | ||
| control (STR) | 174, 175 | ||
| check bit chart | |||
| single disk storage drives | 129 | ||
| 2311 Disk Storage Drives | 129 | ||
| check stop (1231) | 161 | ||
| checking, data (disk) | 129 | ||
| CLK (clock) indicator | 122 | ||
| code | |||
| area (IOCC) | 102 | ||
| character (paper tape) | 143 | ||
| EBCDIC | 8 | ||
| function (IOCC) | 102 | ||
| line transmission (4 of 8) | 172 | ||
| codes | |||
| character | 7, 192 | ||
| illegal op | 122 | ||
| coding, data | |||
| console | 116 | ||
| 1442 | 136 | ||
| 2501 | 140 | ||
| columns per second (1442 punch) | 135 | ||
| commands, I/O control, defined (see also input/output control commands) | 101 | ||
| communication data flow | 173 | ||
| complement (two's) | 6 | ||
| condition register indicator | 123 | ||
| console | |||
| display panel | 121 | ||
| entry switches | 124 | ||
| function lights and switches | 124 | ||
| introduction | 114 | ||
| keyboard | 119 | ||
| DSW | 120 | ||
| programming | 120 | ||
| speed | 119 | ||
| printer | 116 | ||
| data coding | 116 | ||
| DSW | 116 | ||
| IOCC's | 116 | ||
| programming considerations | 117 | ||
| speed | 116 | ||
| console/keyboard switch | 125 | ||
| console mode switch | 123 | ||
| control (IOCC), defined | |||
| paper tape | 144 | ||
| SAC | 169 | ||
| SCA | 181 | ||
| single disk storage drives | 129 | ||
| 1132 | 147 | ||
| 1231 | 159 | ||
| 1403 | 150 | ||
| 1442 | 137 | ||
| 2250 | 165 | ||
| 2311 | 133 | ||
| control characters | |||
| BSC | 177 | ||
| STR | 174, 175 | ||
| control commands, I/O (defined) | 100 | ||
| control, direct program | 101 | ||
| control operations | |||
| BSC | 178 | ||
| STR | 174 | ||
| control sequences | |||
| BSC | 177 | ||
| STR | 175 | ||
| control tape (1403) | 149 | ||
| core storage | 2 | ||
| addresses | 8 | ||
| capacity | 8 | ||
| cycle times | 2 | ||
| locations (reserved) | 9 | ||
| times (core storage cycle) | 2 | ||
| correction, error, routines (disk) | 134 | ||
| count, shift (see shift count) | |||
| CP (character phase) indicator | 122 | ||
| CPU (central processing unit) | 2 | ||
| data flow | 25 | ||
| forced branch (interrupt) | 104, 107 | ||
| functional characteristics | 4 | ||
| instructions (see also instructions, CPU) | 26 | ||
| usage meter | 126 | ||
| CSL (core-storage location) symbol | 30 | ||
| cycle (I1, I2, IX, E1, E2, E3) indicator | 123 | ||
| cycle-control counter (CCC) | 24 | ||
| cycle control counter indicator | 123 | ||
| cycle steal | 101 | ||
| check interrupt (2250) | 166 | ||
| devices | 184 | ||
| mode (SAC) | 168 | ||
| priority | 168, 184 | ||
| throughput | 183 | ||
| cycle-steal priority | 168 | ||
| cycle times (core storage) | 2 | ||
| cylinder (disk) | 128 | ||
| D instruction | 64 | ||
| data capacity | |||
| core storage | 8 | ||
| disk storage | 2 | ||
| data (character codes) | 7 | ||
| data checking (disk) | 129 | ||
| data coding | |||
| console printer | 114 | ||
| 1442 | 136 | ||
| 2501 | 140 | ||
| data error | |||
| single disk storage | 133 | ||
| 2311 | 133 | ||
| data flow | |||
| communication | 173 | ||
| CPU | 25 | ||
| 1231 | 156 | ||
| data formats | 4 | ||
| numeric | 5 | ||
| 1132 | 146 | ||
| 1231 | 155 | ||
| data in (DI) indicator | 122 | ||
| data loss | 183 | ||
| data organization (disk) | 128 | ||
| data saved for interrupted program | 109 | ||
| data sheet terminology (1231) | 154 | ||
| data transmission (BSC) | 179 | ||
| delay, rotational | |||
| single disk storage | 129 | ||
| 2311 | 131 | ||
| detect interrupt (2250) | 166 | ||
| device address (IOCC) | 102 | ||
| device code (IOCC) | 102 | ||
| device field | 102 | ||
| device priority | 183, 184 | ||
| device status word | |||
| console printer | 116 | ||
| interrupts | 110 | ||
| SCA | 181 | ||
| single disk storage | 133 | ||
| 1132 | 147 | ||
| 1134/1055 | 145 | ||
| 1231 | 160 | ||
| 1403 | 150 | ||
| 1442 | 138 | ||
| 1627 | 153 | ||
| 2250 | 166 | ||
| 2311 | 133 | ||
| 2501 | 141 | ||
| devices (I/O) list of | 3 | ||
| devices, cycle steal | 184 | ||
| DI (data in) indicator | 122 | ||
| direct addressing (IA bit = 0) | 14 | ||
| direct program control | 101 | ||
| direct program control (throughput) | 183 | ||
| discrimination, mark (1231) | 155 | ||
| disk monitor programming system | 1 | ||
| disk storage drives | 127 | ||
| capacity | |||
| single disk storage | 129 | ||
| 2311 | 127 | ||
| cylinder schematic | 128 | ||
| data checking | 129 | ||
| data organization | 128 | ||
| device status word | |||
| single disk storage | 133 | ||
| 2311 | 133 | ||
| disk access mechanism | |||
| single disk storage | 129 | ||
| 2311 | 131 | ||
| disk cartridge | 127 | ||
| disk check bit chart | 129 | ||
| disk pack | 127 | ||
| DSW indicators, single disk storage | 133 | ||
| carriage home | 133 | ||
| data error | 133 | ||
| disk busy (R/W or carriage) | 133 | ||
| disk not ready | 133 | ||
| operation complete | 133 | ||
| sector count | 131 | ||
| DSW indicators, 2311 | 133 | ||
| carriage home | 133 | ||
| data error | 133 | ||
| disk busy (R/W or carriage) | 133 | ||
| disk not ready | 133 | ||
| operation complete | 133 | ||
| sector count | 131 | ||
| I/O control commands, single disk storage | 131 | ||
| control | 133 | ||
| initiate read | 131 | ||
| initiate write | 132 | ||
| read | 130 | ||
| sense device | 133 | ||
| I/O control commands, 2311 | 131 | ||
| control | 133 | ||
| initiate read | 131 | ||
| initiate write | 132 | ||
| read | 132 | ||
| read check | 132 | ||
| sense device | 133 | ||
| programming considerations | 134 | ||
| sector numbers | 128 | ||
| timing, 2311 | 131 | ||
| usage meter | 134 | ||
| disk unlock light | 124 | ||
| DISP (display core storage) mode | 123 | ||
| displacement | 11 | ||
| DISP (displacement) symbol | 30 | ||
| expanded | 40 | ||
| negative | 13 | ||
| positive | 13 | ||
| range of | 13 | ||
| display copier (2285) | 167 | ||
| display core storage (DISP) mode | 123 | ||
| display panel, console | 121 | ||
| display unit (2250) | 163 | ||
| displays (2250) | 163 | ||
| divide instruction | 64 | ||
| document path (1231) | 155 | ||
| document selected (1231) | 160 | ||
| double precision | 5 | ||
| DPC (direct program control) | 101 | ||
| drive (disk storage) | 2, 127 | ||
| drum, pin-feed (1627) | 152 | ||
| DSW (see device status word) | |||
| DSW sense IOCC, defined | 102 | ||
| duplex | 172 | ||
| EA (effective address) symbol | 30 | ||
| EBCDIC | 8 | ||
| effective-address generation | 10 | ||
| effective address generation (exceptions) | 18 | ||
| ELECTROGRAPHIC pencil | 155 | ||
| emergency pull switch | 125 | ||
| enable (ABL) indicator | 122 | ||
| end of field (EOF) | 119 | ||
| entry switches, console | 124 | ||
| entry, manual | 124 | ||
| EOF (end of field) key | 119 | ||
| EOR instruction | 71 | ||
| ERASE FIELD key (console keyboard) | 120 | ||
| erasures (1231) | 155 | ||
| error check (1442) | 139 | ||
| error check (2501) | 141 | ||
| error-correction routines (disk) | 134 | ||
| examples, (instruction, format of) | 30 | ||
| exceptions to effective address generation | 18 | ||
| exclusive-OR instruction | 71 | ||
| execute I/O instruction | 100 | ||
| execution (instruction) times | 26, 27 | ||
| expanded displacement | 40 | ||
| exposure to loss of data | 183 | ||
| EXT (accumulator extension) | 20 | ||
| extended binary coded decimal interchange code (EBCDIC) | 8 | ||
| extension (accumulator) | 20 | ||
| E1 indicator | 122 | ||
| E2 indicator | 122 | ||
| E3 indicator | 122 | ||
| F bit | 10, 11 | ||
| feed busy (1231) | 160 | ||
| feed cycle modifier (1442) | 137 | ||
| feeding, card | |||
| 1442 | 136 | ||
| 2501 | 140 | ||
| field checking (1231) | 157 | ||
| fields (instruction) | 10, 11 | ||
| forced CPU branch (interrupt) | 104 | ||
| format bit | 10, 11 | ||
| format of instruction examples | 30 | ||
| format, data | 4 | ||
| 1132 | 146 | ||
| 1231 | 155 | ||
| formats | |||
| instruction | 9, 11 | ||
| numeric data | 5 | ||
| forms check light | 124 | ||
| forms control (1132) | 146 | ||
| FORTRAN | 1 | ||
| four-of-8 line transmission code | 172 | ||
| four-wire operation | 172 | ||
| full-duplex | 172 | ||
| full-transparent text | 171 | ||
| function code (IOCC) | 102 | ||
| function field (IOCC) | 102 | ||
| function lights and switches (console) | 124 | ||
| function switches (console) | 125 | ||
| functional characteristics (CPU) | 4 | ||
| generation (effective address) | 10 | ||
| glossary | 194 | ||
| graphic mode (2250) | 163 | ||
| gravity stackers (1231) | 155 | ||
| half-duplex operation | 172 | ||
| head (read/write) disk | 129 | ||
| home position (disk) | 129 | ||
| hopper (1231) | 155 | ||
| hopper empty (1231) | 160 | ||
| I (instruction address register) symbol | 30 | ||
| I/O devices (list of) | 3 | ||
| I/O disconnect (1231) | 159 | ||
| I/O interrupts | 104 | ||
| I/O, overlapping | 183 | ||
| I/O timing requirements | 185 | ||
| IA (indirect address) bit | 11 | ||
| IA indicator | 122 | ||
| IAR | 19 | ||
| IBM System/7 | |||
| introduction | 3, 188 | ||
| programming | |||
| control | 189 | ||
| device status word (DSW) | 191 | ||
| electronic initial program load (EIPL) | 189 | ||
| initiate read | 189 | ||
| initiate write | 189 | ||
| IOCC | 188 | ||
| sense device | 190 | ||
| sense interrupt | 190 | ||
| IBM 1055 Paper Tape Punch | 143 | ||
| IBM 1055 Paper Tape Punch limitations | 143 | ||
| IBM 1131 Central Processing Unit | 2 | ||
| IBM 1132 Printer | 146 | ||
| IBM 1134 Paper Tape Reader | 143 | ||
| IBM 1231 Optical Mark Page Reader | 154 | ||
| IBM 1316 Disk Pack | 127 | ||
| IBM 1403 Printer | 149 | ||
| IBM 1442 Card Read Punch | 135 | ||
| IBM 1627 Plotter | 152 | ||
| IBM 1627 Plotter not ready limitation | 153 | ||
| IBM 2250 Display Unit | 162 | ||
| IBM 2285 Display Copier | 167 | ||
| IBM 2310 disk capacity | 130 | ||
| IBM 2310 Disk Storage | 130 | ||
| IBM 2311 Disk Storage Drive | 130 | ||
| IBM 2315 Disk Cartridge | 2 | ||
| IBM 2501 Card Reader | 139 | ||
| illegal instructions (op codes) | 122 | ||
| ILSW | 110 | ||
| ILSW sense IOCC, defined | 102 | ||
| IMM (immediate) stop switch | 125 | ||
| index register (XR 1, 2, and 3) | |||
| indicator | 123 | ||
| locations | 9 | ||
| specified | 11, 14 | ||
| indicator displays (console keyboard) | 121 | ||
| indicators (carry and overflow) | 22 | ||
| indicators (carry and overflow) set or reset by LDS | 49 | ||
| indicators (program) | 19 | ||
| indirect address | 14 | ||
| indirect address (IA) bit | 11 | ||
| indirect addressing (IA bit = 1) | 14 | ||
| initiate read IOCC | 102 | ||
| initiate write IOCC | 102 | ||
| SAC | 169 | ||
| SCA | 182 | ||
| 1403 | 150 | ||
| 2250 | 164 | ||
| 2311 | 132 | ||
| ink (1231) | 154 | ||
| input/output control commands | 101 | ||
| console entry switches | 124 | ||
| console keyboard | 120 | ||
| console printer | 116 | ||
| paper tape | 144 | ||
| SAC | 168 | ||
| SCA | 181 | ||
| single disk storage | 132 | ||
| 1132 | 147 | ||
| 1231 | 159 | ||
| 1442 | 137 | ||
| 1627 | 153 | ||
| 2250 | 164 | ||
| 2310 | 130 | ||
| 2311 | 131 | ||
| 2501 | 140 | ||
| instruction (I/O) | 100 | ||
| instruction address indicator | 121 | ||
| instruction address register | 11, 19 | ||
| instruction address register (IAR) | 19 | ||
| load switch | 126 | ||
| size | 12 | ||
| specified by tag bits | 11, 12 | ||
| instruction addressing summary | 16 | ||
| instruction examples format | 30 | ||
| instruction fields | 10, 11 | ||
| instruction formats | 9 | ||
| instruction times | 26, 27 | ||
| instructions, arithmetic | 51 | ||
| instructions, branch | 90 | ||
| instructions, CPU | 26 | ||
| A | 51 | ||
| AD | 53 | ||
| AND | 67 | ||
| BOSC | 90 | ||
| BSC | 90 | ||
| BSI | 94 | ||
| D | 64 | ||
| EOR | 71 | ||
| LD | 31 | ||
| LDD | 33 | ||
| LDS | 49 | ||
| LDX | 39 | ||
| M | 62 | ||
| MDX | 97 | ||
| NOP | 74 | ||
| OR | 69 | ||
| RTE | 88 | ||
| S | 56 | ||
| SD | 59 | ||
| SLA | 74 | ||
| SLC | 81 | ||
| SLCA | 78 | ||
| SLT | 76 | ||
| SRA | 84 | ||
| SRT | 86 | ||
| STD | 37 | ||
| STO | 35 | ||
| STS | 47 | ||
| STX | 43 | ||
| WAIT | 99 | ||
| XIO | 101 | ||
| instructions, illegal, op codes | 122 | ||
| instructions, shift | 73 | ||
| instructions, store and load | 31 | ||
| INT REQ key | 119 | ||
| INT RUN (interrupt run) mode | 123 | ||
| interference (to CPU) | 186 | ||
| interrupt level status word | 110 | ||
| interrupt, I/O | 104 | ||
| cause | 110 | ||
| keyboard | 124 | ||
| level | 107 | ||
| levels indicator | 123 | ||
| mode (SAC) | 168 | ||
| priority | 184 | ||
| program stop | 112 | ||
| request | 119 | ||
| request (console keyboard) | 121 | ||
| run (INT RUN) mode | 123 | ||
| run mode | 112 | ||
| sample program | 113 | ||
| sense IOCC defined | 102 | ||
| subroutines | 104 | ||
| vectors | 9, 107 | ||
| interruptions to System/7 | 190 | ||
| interruptions to 1130 | 191 | ||
| introduction | 1 | ||
| IOCC's (see input/output control commands or specific device) | |||
| IX indicator | 122 | ||
| I1 indicator | 122 | ||
| I2 indicator | 122 | ||
| KB select light | 124 | ||
| keyboard (console) | 119 | ||
| busy | 121 | ||
| device status word | 120 | ||
| entry | 121 | ||
| interrupt | 124 | ||
| programming | 120 | ||
| response interrupt | 120 | ||
| speed | 119 | ||
| keyboard console/keyboard switch | 125 | ||
| keyboard interrupt (2250) | 166 | ||
| language (programming) | 1 | ||
| last card (1442) | 137 | ||
| last card (2501) | 141 | ||
| last card sequence (1442) | 137 | ||
| last card sequence (2501) | 140 | ||
| LD instruction | 31 | ||
| LDD instruction | 33 | ||
| LDS instruction | 49 | ||
| LDX instruction | 39 | ||
| level-5, special considerations | 112 | ||
| level, interrupt | 107 | ||
| levels, interrupt, indicator | 123 | ||
| light pen switch status (2250) | 166 | ||
| lights (functions) and switches (console) | 124 | ||
| limitations, program-controlled disconnect feature | 172 | ||
| limitations, service request | 184 | ||
| line attachment (SCA) | 171 | ||
| line transmission code (4 of 8) | 172 | ||
| line turnaround (BSC) | 178 | ||
| list of I/O devices | 3 | ||
| LOAD (load core storage) mode | 123 | ||
| load (program) switch | 126 | ||
| load accumulator instruction | 31 | ||
| load and store instructions | 31 | ||
| load double instruction | 33 | ||
| load IAR switch | 126 | ||
| load index instruction | 39 | ||
| load key (1131/1442) | 137 | ||
| load mode (1442) | 137 | ||
| load status instruction | 49 | ||
| load, program | |||
| 1134 | 144 | ||
| 1442 | 137 | ||
| 2501 | 140 | ||
| location (interrupt vectors) | 9 | ||
| location (1132 printer scan field) | 9 | ||
| location restriction (double precision operand) | 6 | ||
| locations (core storage) reserved | 9 | ||
| logical AND instruction | 67 | ||
| logical exclusive-OR instruction | 71 | ||
| logical OR instruction | 69 | ||
| long (instruction) format | 9, 11 | ||
| long-instruction address generation | 14 | ||
| longitudinal redundancy check (LRC) | 176 | ||
| loss of data | 183 | ||
| LRC | 176 | ||
| M instruction | 62 | ||
| machine registers (miscellaneous) | 24 | ||
| magnitudes of numeric data | 6 | ||
| manual entry | 124 | ||
| mark (1231) | 154 | ||
| mark positions (1231) | 154 | ||
| mark recognition and discrimination (1231) | 155 | ||
| mark reflectance (1231) | 156 | ||
| marking the data sheet (1231) | 155 | ||
| master data (1231) | 160 | ||
| master line (1231) | 156 | ||
| MDX instruction | 97 | ||
| message format (1231) | 155 | ||
| meter, usage (see usage meters) | |||
| miscellaneous machine registers | 24 | ||
| mode | |||
| cycle steal (SAC) | 168 | ||
| interrupt (SAC) | 168 | ||
| interrupt run | 112 | ||
| load (1442) | 137 | ||
| receive (BSC) | 178 | ||
| receive (STR) | 176 | ||
| switch (console) | 123 | ||
| synchronize (BSC) | 179 | ||
| synchronize (STR) | 175 | ||
| transmit (BSC) | 179 | ||
| transmit (STR) | 176 | ||
| transmit indicator | 122 | ||
| modifier field (IOCC) | 103 | ||
| modify index and skip | 97 | ||
| modulo 4 | 129 | ||
| monitor (disk) programming system | 1 | ||
| multi-mark (1231) | 157 | ||
| multiple response (1231) | 156 | ||
| multiply instruction | 62 | ||
| multipoint | 171 | ||
| multipoint operation (BSC) | 178 | ||
| negative displacement | 14, 15 | ||
| negative numbers | 5, 6 | ||
| no-operation (NOP) instruction | 74 | ||
| no-operation command (2250) | 165 | ||
| non-reflective ink (1231) | 154 | ||
| normal text | 171 | ||
| not ready | |||
| single disk storage | 133 | ||
| 1132 | 148 | ||
| 1231 | 161 | ||
| 1403 | 151 | ||
| 1442 | 138 | ||
| 1627 | 153 | ||
| 2311 | 133 | ||
| not ready or busy (2501) | 141 | ||
| numbers (negative, positive) | 5, 6 | ||
| numeric (NUM) key (console keyboard) | 120 | ||
| numeric data formats for arithmetic operations | 5 | ||
| okay to select (1231) | 160 | ||
| OMPR | 154 | ||
| one through eight (1—8) indicators | 122 | ||
| OP (operation register) | 24 | ||
| op codes (illegal) | 122 | ||
| operands (numeric), size of | 6 | ||
| operation codes (illegal) | 122 | ||
| operation complete | |||
| single disk storage | 133 | ||
| 1231 | 160 | ||
| 1442 | 138 | ||
| 2311 | 133 | ||
| 2501 | 141 | ||
| operation flags indicator | 122 | ||
| operation register (OP) | 24 | ||
| operation register indicator | 122 | ||
| operation-tag register (TAG) | 24 | ||
| Optical Mark Page Reader (1231) | 154 | ||
| OR, logical, instruction | 69 | ||
| order-controlled interrupt (2250) | 166 | ||
| organization (disk) | 134 | ||
| organization of instruction descriptions | 30 | ||
| overflow indicator | 22 | ||
| overflow indicator (set or reset by LDS) | 49 | ||
| overlapping input/output operations and throughput | 183 | ||
| P (1 and 2) indicators | 122 | ||
| panel, display (console) | 121 | ||
| paper tape (card) programming system | 1 | ||
| paper tape input/output devices | 143 | ||
| parity check (1403) | 150 | ||
| parity check light | 124 | ||
| pen motion (1627) | 152 | ||
| pencil, ELECITROGRAPHIC | 155 | ||
| phase, character (CP), indicator | 122 | ||
| pin-feed drum (1627) | 152 | ||
| plotter (1627) | 152 | ||
| plotter response interrupt (1627) | 153 | ||
| point mode (2250) | 166 | ||
| point-to-point | 171 | ||
| positive displacement | 13 | ||
| positive numbers | 5, 6 | ||
| power on/off switch | 125 | ||
| power sequencing (SAC) | 170 | ||
| precision (single, double) | 5 | ||
| print chain (1403) | 149 | ||
| print check (1403) | 150 | ||
| print complete (1403) | 150 | ||
| print scan check (1132) | 148 | ||
| print speed | |||
| 1132 | 146 | ||
| 1403 | 149 | ||
| print wheel (1132) | 146 | ||
| printer | |||
| busy (console) | 117 | ||
| busy (1403) | 151 | ||
| console | 116 | ||
| data coding (console) | 116 | ||
| DSW (console) | 116 | ||
| I/O control commands (1132) | 147 | ||
| IOCC's (console) | 116 | ||
| not ready (console) | 117 | ||
| programming considerations (console) | 117 | ||
| response interrupt (console) | 117 | ||
| scan field (1132) | 9, 146 | ||
| speed, console | 116 | ||
| 1132 | 146 | ||
| 1403 | 149 | ||
| printers | 146 | ||
| printing (1403) | 149 | ||
| printing speed (console printer) | 116 | ||
| priority, cycle-steal | 168, 184 | ||
| priority, device | 183, 184 | ||
| priority, interrupt | 184 | ||
| processing unit (CPU) | 1 | ||
| program control devices | 186 | ||
| program control sheet (1231) | 158 | ||
| program control, direct | 101 | ||
| program-controlled disconnect limitations | 172 | ||
| program load | |||
| switch | 126 | ||
| 1134 | 144 | ||
| 1442 | 137 | ||
| 2501 | 140 | ||
| program registers and program indicators | 19 | ||
| program run (RUN) mode | 123 | ||
| program, sample interrupt | 113 | ||
| program start switch | 125 | ||
| program stop (interrupt) | 112 | ||
| program stop switch | 125 | ||
| programming | |||
| BSC, special | 179 | ||
| console keyboard | 120 | ||
| console printer | 117 | ||
| disk | 131 | ||
| notes (1132) | 148 | ||
| paper tape | 144 | ||
| SAC | 168 | ||
| SCA | 180 | ||
| single disk storage | 129 | ||
| STR, special | 176 | ||
| 1132 | 147 | ||
| 1231 | 158 | ||
| 1403 | 150 | ||
| 1442 | 137 | ||
| 1627 | 153 | ||
| 1627 not ready limitation | 153 | ||
| 2250 | 164 | ||
| 2311 | 131 | ||
| 2501 | 140 | ||
| programming (and applications) | 1 | ||
| programming language | 1 | ||
| programming system (card/paper tape) | 1 | ||
| programming system (disk monitor) | 1 | ||
| punch (card) read | 135 | ||
| punch busy (paper tape) | 145 | ||
| punch not ready (paper tape) | 145 | ||
| punch response (paper tape) | 145 | ||
| punch response interrupt (1442) | 138 | ||
| punch, paper tape (1055) | 143 | ||
| punched card input/output devices | 135 | ||
| punching, card (1442) | 137 | ||
| Q (accumulator extension) symbol | 30 | ||
| range of displacement | 13 | ||
| range of values (numeric data) | 6 | ||
| RDY indicator | 122 | ||
| read (card) punch | 135 | ||
| read busy (1231) | 161 | ||
| read-check (single disk storage) | 132 | ||
| read-check (2311) | 132 | ||
| read command | 102 | ||
| console entry switches | 124 | ||
| paper tape | 144 | ||
| SAC | 169 | ||
| SCA | 181 | ||
| single disk storage | 132 | ||
| 1231 | 159 | ||
| 1442 | 137 | ||
| 2311 | 131 | ||
| read emitter (1132) | 147 | ||
| read emitter response (1132) | 147 | ||
| read error (1231) | 160 | ||
| read response interrupt (1231) | 160 | ||
| read response interrupt (1442) | 138 | ||
| read start (1231) | 159 | ||
| read/write head (disk) | 129 | ||
| read/write time (single disk storage) | 129 | ||
| read/write time (2311) | 131 | ||
| reader and system timing (2501) | 141 | ||
| reader busy (paper tape) | 145 | ||
| reader not ready (paper tape) | 145 | ||
| reader, paper tape (1134) | 143 | ||
| reader response (paper tape) | 145 | ||
| reading, card (1442) | 136 | ||
| ready indicator | 122 | ||
| receive (REC) indicator | 122 | ||
| receive mode (BSC) | 178 | ||
| receive mode (STR) | 176 | ||
| recognition, mark (1231) | 155 | ||
| reflectance, mark (1231) | 156 | ||
| reflective ink (1231) | 154 | ||
| register | |||
| index, specified | 11, 14 | ||
| instruction address | 19 | ||
| instruction address specified | 11 | ||
| instruction address, specified by T bits | 12 | ||
| registers | |||
| index | 19 | ||
| index locations | 9 | ||
| miscellaneous | 24 | ||
| program | 19 | ||
| report program generator (RPG) | 1 | ||
| request-to-send | 172 | ||
| reserved core-storage locations | 9 | ||
| reset display command (2250) | 165 | ||
| reset switch | 126 | ||
| response (1231) | 156 | ||
| restore keyboard (REST KB) | 119 | ||
| restriction (double precision operand location) | 6 | ||
| rotate right accumulator and extension | 88 | ||
| rotational delay (single disk storage) | 129 | ||
| rotational delay (2311) | 131 | ||
| row (1231) | 154 | ||
| RPG (report program generator) | 1 | ||
| RTE instruction | 88 | ||
| RUN (program run) mode | 123 | ||
| run light | 124 | ||
| run mode, interrupt | 112 | ||
| S instruction | 56 | ||
| SAC (storage access channel) | 168 | ||
| sample interrupt program | 113 | ||
| SAR (storage address register) | 24 | ||
| saving data used by interrupted program | 109 | ||
| SBR (storage buffer register) | 24 | ||
| SC indicator | 122 | ||
| SCA | 171 | ||
| scan field (1132) | 9, 146 | ||
| scan, print, check (1132) | 148 | ||
| SD instruction | 59 | ||
| sector count | 131 | ||
| sector count (2311) | 131 | ||
| sectors (disk) | 128 | ||
| segment (1231) | 154 | ||
| select stacker (1231) | 159 | ||
| sense device | 102 | ||
| paper tape | 145 | ||
| SAC | 169 | ||
| SCA | 182 | ||
| single disk storage | 133 | ||
| 1132 | 147 | ||
| 1231 | 159 | ||
| 1403 | 150 | ||
| 1442 | 138 | ||
| 1627 | 153 | ||
| 1627 not ready limitation | 153 | ||
| 2250 | 165 | ||
| 2311 | 133 | ||
| 2501 | 140 | ||
| sense interrupt (SAC) | 168 | ||
| sense interrupt IOCC, defined | 102 | ||
| sensor based system | 3, 188 | ||
| sequences, control | 175 | ||
| sequences, control (BSC) | 177 | ||
| sequencing, power (SAC) | 170 | ||
| service request limitations | 184 | ||
| set programmed function indicators command (2250) | 164 | ||
| sheet, data (1231) | 154 | ||
| shift count | 73 | ||
| NOP | 75 | ||
| RTE | 88 | ||
| SLA | 74 | ||
| SLC | 81 | ||
| SLCA | 78 | ||
| SLT | 76 | ||
| SRA | 84 | ||
| SRT | 86 | ||
| shift instructions | 73 | ||
| shift left accumulator and extension | 76 | ||
| shift left accumulator instruction | 74 | ||
| shift left and count accumulator | 78 | ||
| shift left and count accumulator and extension | 81 | ||
| shift right accumulator and extension | 86 | ||
| shift right logical accumulator | 84 | ||
| short (instruction) format | 9, 10 | ||
| short-instruction address generation | 11 | ||
| SI (single instruction) mode | 123 | ||
| signs | 5 | ||
| in add double operation | 53 | ||
| in add operation | 51 | ||
| in divide operation | 65 | ||
| in subtract operation | 57 | ||
| single disk storage (in 1131) | 129 | ||
| single disk storage, programming | 131 | ||
| single instruction (SI) mode | 123 | ||
| single memory cycle (SMC) mode | 123 | ||
| single precision | 5 | ||
| single response (1231) | 156 | ||
| single step (SS) mode | 123 | ||
| size (IAR) | 12, 19 | ||
| size (instruction address register) | 19 | ||
| size (of numeric operands) | 6 | ||
| skip response (1132) | 148 | ||
| skipping | |||
| 1132 | 146 | ||
| 1403 | 149 | ||
| SLA instruction | 74 | ||
| SLC instruction | 81 | ||
| SLCA instruction | 78 | ||
| SLT instruction | 76 | ||
| SMC (single memory cycle) mode | 123 | ||
| sonic delay lines (1231) | 155 | ||
| space response (1132) | 148 | ||
| spacing | |||
| 1132 | 146 | ||
| 1403 | 149 | ||
| special considerations for level-5 interrupt | 112 | ||
| special keyboard console programming | 120 | ||
| special power sequencing considerations (SAC) | 170 | ||
| special programming (BSC) | 179 | ||
| special programming (STR) | 176 | ||
| specification of IAR | 11 | ||
| specification of index register | 11 | ||
| speed | |||
| console keyboard | 119 | ||
| console printer | 116 | ||
| 1132 | 146 | ||
| 1231 | 154 | ||
| 1403 | 149 | ||
| 1442 | 135 | ||
| 1627 | 152 | ||
| 2250 | 162 | ||
| SRA instruction | 84 | ||
| SRT instruction | 86 | ||
| SS (single step) mode | 123 | ||
| stabilization period (disk) | 129 | ||
| stacker (1231) | 155 | ||
| stacker select modifier (1442) | 138 | ||
| start (program) switch | 125 | ||
| start carriage (1132) | 147 | ||
| start-of-checking codes (1231) | 157 | ||
| start printer (1132) | 147 | ||
| start punch modifier (1442) | 138 | ||
| start read modifier (1442) | 137 | ||
| start regeneration command (2250) | 164 | ||
| status word (DSW) | 110 | ||
| status word (ILSW) | 110 | ||
| STD instruction | 37 | ||
| steal, cycle | 101 | ||
| STO. instruction | 35 | ||
| stop (immediate) switch | 125 | ||
| stop (program) switch | 125 | ||
| stop carriage (1132) | 147 | ||
| stop printer (1132) | 147 | ||
| stop, program, interrupt | 112 | ||
| storage (core) | 2 | ||
| storage (core) addresses | 8 | ||
| storage (core) locations, reserved | 9 | ||
| storage (disk) organization | 128 | ||
| storage (disk) programming | 131 | ||
| storage access channel (SAC) | 168 | ||
| programming | 168 | ||
| control | 169 | ||
| initiate read | 169 | ||
| initiate write | 169 | ||
| read | 169 | ||
| sense device | 169 | ||
| sense interrupt | 168 | ||
| write | 169 | ||
| special power sequencing considerations | 170 | ||
| storage address indicator | 121 | ||
| storage-address register (SAR) | 24 | ||
| storage buffer indicator | 121 | ||
| storage-buffer register (SBR) | 24 | ||
| storage capacity (single disk storage) | 128 | ||
| storage capacity (2311) | 127 | ||
| storage cycle times | 2 | ||
| storage, disk | 127 | ||
| storage drive (single disk storage) | 2 | ||
| storage drive (2311) | 3 | ||
| store (and load) instructions | 31 | ||
| store accumulator instruction | 35 | ||
| store double instruction | 37 | ||
| store index instruction | 43 | ||
| store status instruction | 47 | ||
| STR | 171 | ||
| STR control operations | 174 | ||
| STS instruction | 47 | ||
| STX instruction | 43 | ||
| subroutines, interrupt | 104 | ||
| subtract double instruction | 59 | ||
| subtract instruction | 56 | ||
| summary of addressing concepts | 16 | ||
| symbols and orgamzation of instruction descriptions | 30 | ||
| sync check (1403) | 150 | ||
| synchronize mode (BSC) | 179 | ||
| synchronize mode (STR) | 175 | ||
| synchronous communications adapter (SCA) | 171 | ||
| device status word | 181 | ||
| DSW indicators | 181 | ||
| I/O control commands | 181 | ||
| control | 181 | ||
| initiate read | 182 | ||
| initiate write | 182 | ||
| read | 181 | ||
| sense device | 182 | ||
| write | 181 | ||
| programming | 180 | ||
| synchronous transmission | 171 | ||
| synchronous transmit-receive (STR) | 171 | ||
| synchronous transmit-receive operation | 174 | ||
| system (card/paper tape programming) | 1 | ||
| system (disk monitor programming) | 1 | ||
| system programming (1231) | 159 | ||
| System/7 sensor based system | 3, 188 | ||
| T (0-7) indicators | 122 | ||
| T bits | 11 | ||
| T bits (specify IAR) | 12 | ||
| TAG (operation-tag register) | 24 | ||
| tag (T) bits | 11 | ||
| tag bits (specify IAR) | 12 | ||
| tag bits = 00 (instruction address register) | 12 | ||
| tag bits = 01, 10, or 11 (index register 1, 2, or 3) | 14 | ||
| tape (paper) specifications | 143 | ||
| tape, carriage, channels (1403) | 149 | ||
| tape, control (1403) | 149 | ||
| tape, Mylar, limitation | 143 | ||
| tape, paper, I/O devices | 143 | ||
| TC indicator | 122 | ||
| temporary accumulator (TAR) | 24 | ||
| terminology, data sheet (1231) | 154 | ||
| test timing mark check (1231) | 160 | ||
| throughput, card (2501) | 141 | ||
| throughput, I/O | 183 | ||
| timers (SCA) | 173 | ||
| times, instruction | 26, 27 | ||
| timing | |||
| I/O requirements | 185 | ||
| SCA | 182 | ||
| single disk storage | 129 | ||
| 1442 | 135 | ||
| 1627 | 152 | ||
| 2311 | 131 | ||
| 2501 | 141 | ||
| timing mark (1231) | 154 | ||
| timing mark error (1231) | 160 | ||
| tracks, disk | 128 | ||
| transfer complete (1403) | 150 | ||
| transfer sequence, bit | 173 | ||
| transmit mode (BSC) | 179 | ||
| transmit mode (STR) | 176 | ||
| transmit mode indicator | 122 | ||
| transparent, full, text | 171 | ||
| TSM (transmit mode) indicator | 122 | ||
| turnaround, line (BSC) | 178 | ||
| two-wire operation | 172 | ||
| two's complement (negative) | 6 | ||
| upper case (console printer) | 116 | ||
| usage meters | |||
| 1131 | 126 | ||
| 1132 | 148 | ||
| 1231 | 161 | ||
| 1403 | 151 | ||
| 1442 | 139 | ||
| 2310 | 134 | ||
| 2311 | 134 | ||
| 2501 | 142 | ||
| V (value) symbol | 30 | ||
| vector, interrupt | 107 | ||
| vectors, interrupt, location | 9 | ||
| W (wait) indicator | 122 | ||
| wait instruction | 99 | ||
| WCA (disk) | 131 | ||
| WCA (SAC) | 169 | ||
| word (CPU) | 2, 4 | ||
| word (1231) | 154 | ||
| word count address (single disk storage) | 131 | ||
| word count address (2311) | 131 | ||
| wraparound | 8 | ||
| write | 102 | ||
| paper tape | 145 | ||
| SAC | 169 | ||
| SCA | 181 | ||
| 1403 | 150 | ||
| 1442 | 137 | ||
| 1627 | 153 | ||
| XIO instruction | 100 | ||
| XR (index registers) | 19 | ||
| locations | 9 | ||
| specified | 11, 14 | ||
| X7 indicator | 122 | ||
| ZR indicator | 122 | ||
| 1055 Paper Tape Punch (see also 1134/1055 programming) | 143 | ||
| 1055 Paper Tape Punch limitation | 143 | ||
| 1130 instruction set | 26 | ||
| 1130 word (definition) | 4 | ||
| 1131 CPU | 2, 4 | ||
| single disk storage | 129 | ||
| usage meter | 126 | ||
| 1132 Printer | 146 | ||
| data format | 146 | ||
| device status word | 147 | ||
| DSW indicators | 147 | ||
| carriage busy | 148 | ||
| carriage control channels | 148 | ||
| not ready | 148 | ||
| print scan check | 148 | ||
| printer busy | 148 | ||
| read emitter response interrupt | 147 | ||
| skip response interrupt | 148 | ||
| space response interrupt | 148 | ||
| forms control | 146 | ||
| I/O control commands | 147 | ||
| control | 147 | ||
| read emitter | 147 | ||
| sense device | 147 | ||
| space | 147 | ||
| start carriage | 147 | ||
| start printer | 147 | ||
| stop carriage | 147 | ||
| stop printer | 147 | ||
| printer scan field (location) | 9 | ||
| programming | 147 | ||
| programming notes | 148 | ||
| usage meter | 148 | ||
| 1133 | 163 | ||
| 2250 | 163 | ||
| 1134 Paper Tape Reader | 143 | ||
| 1134/1055 programming | 144 | ||
| character code | 143 | ||
| core storage format | 144 | ||
| device status word | 145 | ||
| DSW indicators | 145 | ||
| punch busy | 145 | ||
| punch not ready | 145 | ||
| punch response interrupt | 145 | ||
| reader busy | 145 | ||
| reader not ready | 145 | ||
| reader response interrupt | 145 | ||
| I/O control commands | 144 | ||
| control | 145 | ||
| read | 144 | ||
| sense device | 145 | ||
| write | 145 | ||
| tape specifications | 143 | ||
| 1231 Optical Mark Page Reader | 154 | ||
| alphabetic coding schemes | 157, 158 | ||
| data flow | 156 | ||
| data format | 155 | ||
| data sheet | 154, 155 | ||
| device status word | 160 | ||
| DSW indicators | 160 | ||
| busy | 161 | ||
| check stop | 161 | ||
| document selected | 160 | ||
| feed busy | 160 | ||
| hopper empty | 160 | ||
| master data | 160 | ||
| not ready | 161 | ||
| okay to select | 160 | ||
| operation complete | 160 | ||
| read busy | 161 | ||
| read error | 160 | ||
| read response interrupt | 160 | ||
| test timing mark check | 160 | ||
| timing mark error | 160 | ||
| field checking | 157 | ||
| I/O control commands | 159 | ||
| control | 159 | ||
| I/O disconnect | 159 | ||
| read | 159 | ||
| read start | 159 | ||
| select stacker | 159 | ||
| sense device | 159 | ||
| mark positions | 155, 158 | ||
| mark recognition | 155 | ||
| master mark | 156 | ||
| message format | 155 | ||
| program control sheet | 158 | ||
| programming | 159 | ||
| segments | 154 | ||
| timing mark | 154 | ||
| usage meter | 161 | ||
| word | 154 | ||
| 1316 Disk Pack | 127 | ||
| 1403 Printer | 149 | ||
| control tape | 149 | ||
| data format | 149 | ||
| device status word | 150 | ||
| DSW indicators | 150 | ||
| carriage busy | 151 | ||
| carriage channel 9 | 151 | ||
| carriage channel 12 | 151 | ||
| carriage interrupt | 150 | ||
| not ready | 151 | ||
| parity check | 150 | ||
| print check | 150 | ||
| print complete interrupt | 150 | ||
| printer busy | 151 | ||
| sync check | 150 | ||
| transfer complete interrupt | 150 | ||
| I/O control commands | 150 | ||
| control | 150 | ||
| initiate write | 150 | ||
| sense device | 150 | ||
| write | 150 | ||
| maximum printing speed | 149 | ||
| programming | 150 | ||
| spacing and skipping | 149 | ||
| usage meter | 151 | ||
| 1442 Card Read Punch | 135 | ||
| card feeding | 136 | ||
| card punching | 137 | ||
| card reading | 136 | ||
| data coding | 136 | ||
| device status word | 138 | ||
| DSW indicators | |||
| busy | 139 | ||
| error check | 139 | ||
| last card | 139 | ||
| not ready | 138 | ||
| operation complete interrupt | 138 | ||
| punch response interrupt | 138 | ||
| read response interrupt | 138 | ||
| I/O control commands | |||
| control | 137 | ||
| feed cycle | 137 | ||
| read | 137 | ||
| sense device | 138 | ||
| stacker select | 138 | ||
| start punch | 138 | ||
| start read | 137 | ||
| write | 137 | ||
| last card sequence | 137 | ||
| program load | 137 | ||
| programming | 137 | ||
| programming note | 139 | ||
| speeds | 135 | ||
| usage meter | 139 | ||
| 1627 Plotter | 152 | ||
| carriage | 152 | ||
| device status word | 153 | ||
| drum | 152 | ||
| DSW indicators | 153 | ||
| busy | 153 | ||
| not ready | 153 | ||
| not ready limitation | 153 | ||
| plotter response interrupt | 153 | ||
| I/O control commands | 153 | ||
| sense device | 153 | ||
| write | 153 | ||
| pen | 152 | ||
| programming | 153 | ||
| speed | 152 | ||
| 2250 Display Unit | 162 | ||
| alphameric keyboard | 163 | ||
| channel interface | 163 | ||
| character mode | 163 | ||
| device status word | 166 | ||
| displays | 163 | ||
| DSW indicators | 166 | ||
| address displacement | 166 | ||
| busy | 166 | ||
| character mode | 166 | ||
| cycle-steal check interrupt | 166 | ||
| detect interrupt | 166 | ||
| keyboard interrupt | 166 | ||
| light pen switch status | 166 | ||
| order-controlled interrupt | 166 | ||
| point mode | 166 | ||
| graphic mode | 163 | ||
| input/output control commands | 164 | ||
| control | 165 | ||
| initiate read | 164 | ||
| initiate write | 164 | ||
| no-operation command | 165 | ||
| reset display command | 165 | ||
| sense device | 165 | ||
| set programmed function indicator command | 164 | ||
| start regeneration command | 164 | ||
| programming | 164 | ||
| usage meter | 167 | ||
| 2285 Display Copier | 167 | ||
| 2310 Disk Storage (see also disk storage drives) | 130 | ||
| 2311 Disk Storage Drive (see also disk storage drives) | 130 | ||
| 2315 Disk Cartridge | 127 | ||
| 2501 Card Reader | 139 | ||
| card feeding | 140 | ||
| card reading | 140 | ||
| card throughput | 141 | ||
| data coding | 140 | ||
| device status word | 141 | ||
| DSW indicators | 141 | ||
| busy | 141 | ||
| error check | 141 | ||
| last card | 141 | ||
| not ready or busy | 141 | ||
| operation complete interrupt | 141 | ||
| I/O control commands | 140 | ||
| initiate read | 140 | ||
| sense device | 140 | ||
| last card sequence | 140 | ||
| program load | 140 | ||
| programming | 140 | ||
| reader and system timing | 141 | ||
| speed | 139 | ||
| timing schematic | 141 | ||
| usage meter | 142 | ||
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