| Image | Item Reference | Title | Description | Date |
 | HC0644 | 15F2270 / S15F-2270-00 | PS/2 Model L40SX Technical Reference | 1991 | |
| HC0645 | 1502493 | PC-AT Hardware Maintenance & Service Volume 1 | 1984 | |
| HC0646 | 6361704 | PC-AT Hardware Maintenance & Service Volume 2 | | |
| HC0647 | 95X0130 | 4691 Programmable Cash Terminal Models 3 & 4 Maintenance Information + diagnostic diskette (Moonshine) | 1988 | |
| HC0648 | 6359979 | Portable Personal Computer Hardware Maintenance & Service Volume 1 | 1984 | |
| HC0649 | 6359984 | Portable Personal Computer Hardware Maintenance & Service Volume 2 | 1984 | |
| HC0650 | 6936877 | Personal Computer Hardware Maintenance & Service | 1983 | |
| HC0651 | 6139776 | Personal Computer XT Guide to Operations | 1985 | |
| HC0652 | 1502490 | Personal Computer Guide to Operations | 1984 | |
| HC0653 | 95X3681 / 74X9457 | PC Convertible Guide to Operations | 1986 | |
| HC0654 | 22-6264-1 | 305 RAMAC Manual of Operation – Mint condition | April 1957 | |
| HC0655 | Model | International Time Recording Division – International Program Device Metal Disc Model | 15/09/1936 | |
| HC0656 | A26-3502-2 | 305 RAMAC reference Manual and Reference Card (inside) | 1959 | |
| HC0657 | 227-3514-0 | 305 RAMAC – Case Study for Customer Training | 1957 | |
| HC0658 | 52-6021-0 | IBM Electronic Calculator type 607 – Brochure | 20/03/1953 | |
| HC0659 | 52-5303-3 | Accounting Machine that prints three lines from one IBM card – and other brochures | August 1949 | |
| HC0660 | 620825 MML | IBM 24 Card Punch / IBM 26 Printing Card Punch – Reference Manual | December 1959 | |
| HC0661 | 22-5759-7 | IBM 24 Card Punch / IBM 26 Printing Card Punch – Principles of Operation | 1952 | |
| HC0662 | 52-8834-1 | IBM Electronic Calculating Punch – Brochure | 1952 | |
| HC0663 | 53-7827 | IBM 610 Auto-Point Computer – New Pattern for the Solution of Engineering and Scientific Problems – 3 Brochures | 20 August 1957 | |
| HC0664 | 22-6627-3 | Electronic Data-Processing Machines Type 705 – Principle Manual of Operation | February 1956 | |
| HC0665 | 52-5731-2 | Card-Programmed Electronic Calculator – Brochure | October 1951 | |
| HC0666 | R29-0215-3 | System/360 COBOL – Programming Techniques Text | July 1969 | |
| HC0667 | R29-0210-4 | System/360 COBOL – Writing Programs in COBOL Text | November 1969 | |
| HC0668 | R29-0205-6 | System/360 COBOL – Program Fundamentals Text | November 1969 | |
| HC0669 | SR29-0206-4 | System/360 COBOL – Program Fundamentals Reference Handbook | July 1969 | |
| HC0670 | SR29-0211-4 | System/360 COBOL – Writing Programs in COBOL Reference Handbook | August 1969 | |
| HC0671 | R29-0115-1 | System/360 COBOL – How to Write a Basic PL/I Program Text | June 1969 | |
| HC0672 | 24-6661-2 | 704 Electronic data-processing machine – Manual of Operation | 1955 | |
| HC0673 | 224-5527-2 | Principles of IBM Accounting – Brief summary of all IBM Punch Card machines and their use | 1953 | |
| HC0674 | 520-2059-0 | IBM 2420 Magnetic Tape Unit – Improving and expanding System/360 capabilities | | |
| HC0675 | X20-1703-6 | IBM System/360 Reference Data Card | | |
| HC0676 | X28-1520 | IBM Reference Card – COBOL | | |