To : Supervisor Group
From : D.F. Hartley
System 1 is now defined as the specific objective to which we are all to work. When fully operational it will provide the laboratory with the first on-line system to be available during normal computing service periods and as such should be regarded as a major achievement for computer development in Europe.
The system is defined in detail by the attached list of tasks and it is hoped that all members of the Software group will now give top priority to the work involved so that we can bring this thing to operational status as soon as possible.
If the attached list is incorrect or inadequate or if any stumbling block (technical or otherwise) is encountered, then Sandy and I would like to know as soon as possible.
18.11.66
| Initials | Decisions made by | Coding assembled by | |
|---|---|---|---|
| A. Filemaster | |||
| AGF | 1. Disc Restart | 21 Nov. | |
| 2. Amended disc test program | |||
| DFH (BL.AGF) | 3. Filemaster initiation | 25 Nov. | 5 Dec. |
| AGF | 4. Security system for off-line jobs using files | 25 Nov. | 5 Dec. |
| BL (DFH) | 5. "FROM FILE" and "TO FILE" in job description | 25 Nov. | 5 Dec. |
| AGF | 6. Dumping initiation and Control | 5 Dec. | |
| AGF | 7. Magnetic tape organisation and weekly runs | Start 5 Dec. | |
| B. Multiplexor Routines | |||
| JCV | 1. Rewrite to provide new facilities as agreed (including release working space) | 9 Dec. | |
| JCV (DFH) | 2. Ability to free OP waiting for input from console. | 25 Nov. | |
| C. PDP7 link | |||
| CAL | 1. Testing version operating under 1923 environment | Tests complete 2 Dec. | |
| BL (CAL) | 2. Full version incorporated in Mk. 13 | ||
| D. Tape Scheduler | |||
| PRR | 1. Testing version operating under 1923 environment | Tests complete 28 Nov. | |
| BL (PRR) | 2. Full version incorporated in Mk. 13 | ||
| E. Internal job initiation and JDD | |||
| BL | 1. Compilers not in JDD tables and name preserved for start OP | 25 Nov. | 9 Dec. |
| BL | 2. Extracode to send stream to JDD and "get answer" | 25 Nov. | 9 Dec. |
| F. Fault Routines and Stop OP | |||
| DFH (MJTG) | 1. Modification to Fault Routines for CCP and system monitor | 25 Nov. | 9 Dec. |
| DFH | 2. Modification to Stop OP | 25 Nov. | 9 Dec. |
| G. System Monitor | |||
| PRR | 1. System monitor dumping mechanism | 25 Nov. | |
| PRR | 2. Restart mechanism | 25 Nov. | |
| H. Job Control | |||
| MJTG | 1. J0 and J2 space control and lockout | 25 Nov. | 5 Dec. |
| DFH (MJTG) | 2. 1143, 1146 and 1147. Pure procedure, CCP, System monitor, Start OP, Console OP, logging, built-in-file | 25 Nov. | 5 Dec. |
| 3. OP space scheduling and control | |||
| BL | 4. Optional PLOG | 25 Nov. | 5 Dec. |
| DFH | 5. Documentation of OP interfaces | Documented 28 Nov. | |
| I. Command Control Program | |||
| DB | 1. CCP proper | 18 Nov. | 5 Dec. |
| DB | 2. Built-in commands | 5 Dec. | |
| J. Unser Control Program | |||
| JMHH | 1. Testing version operating under Mk. 12 | Tests complete 9 Dec. | |
| DFH | 2. Dump blocklet and Wait extracode | 13 Dec. | |
| JMHH | 3. Full version incorporated in Mk. 13 | 13 Dec. | |
| K. Miscellaneous | |||
| DFH | 1. Corrections to 1925 including initialisation | 25 Nov. | |
| BL (MJTG) | 2. Corrections to Mk. 12, re-organisation to release fixed space | 5 Dec. | |
| DB (BL) | 3. Time shared post mortem | ||
| BL | 4. Kill all jobs facility | 25 Nov. | |
| MJTG | 5. Status all jobs facility | 25 Nov. | |
| BL | 6. External Scheduling | ||
| L. System Programs | |||
| DB | 1. IIT. J2 space | 5 Dec. | 12 Dec. |
| HB | 2. Autocode pure procedure or bootstrap | 5 Dec. | 12 Dec. |
| HB | 3. FORTRAN bootstrap | ||
| IJ | 4. E2 pure procedure or bootstrap | ||
| SRB | 5. E3 pure procedure or bootstrap | ||
| JMHH | 6. Context editor improvements | ||
| HB | 7. ML/I bootstrap | ||
| IJ | 8. CPL bootstrap | ||
| 9. Construction of library | |||
| 10. Logbook program |
Copyright © 1966 University of Cambridge Computer Laboratory. Distributed by permission. Thanks to Barry Landy, Roger Needham and David Hartley for giving permission to distribute these documents. Thanks to Barry Landy for lending me the paper document from which this was scanned. Any typographical errors probably arose in the course of OCR.
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