Manuals
You can find in this page many Olivetti M20 manuals in the pdf format. There are 61 manuals in this page. The collection is far from complete! If you own a manual that is not listed here, please consider helping the M20 community all around the world...
Installation and tutorials
Manuals for PCOS and other operating systems
Manuals of BASIC and other languages
Low-level and system programming
Manuals dedicated to the M20 hardware
Olivetti peripherals
Software
Page log
Manuals for PCOS and other operating systems
Manuals of BASIC and other languages
Low-level and system programming
Manuals dedicated to the M20 hardware
Olivetti peripherals
Software
Page log
Installation and tutorials
| File | Image | Lang. | Description |
|---|---|---|---|
| m20anl.pdf (3.2MiB) |  |
De | The Olivetti M20 user manual. Many thanks to Chris Groessler and to his FTP site. |
| m20_giu.pdf (49MiB) |  |
It | The Olivetti M20 installation and use, from the Tix's 1000 bit site. |
| olitutor.pdf (2.1MiB) |  |
It | Olitutor was a tutorial program to interactively learn how to use the M20 with PCOS and BASIC. Many thanks to Matteo Pisani. |
| olitu[...].pdf (7.7MiB) |  |
It | The Olitutor manual scanned at an higher resolution. Many thanks to Matteo Pisani. |
| Olive[...].pdf (9MiB) |  |
De | Manual for the DES version (sold in the De market for tax accountants). Thanks to Heiko Schumann. |
Manuals for PCOS and other operating systems
| File | Image | Lang. | Description |
|---|---|---|---|
| M20_PCOS.pdf (7.3MiB) |
 |
It | A good and detailed description of PCOS 1.0, its structure and the use of its commands. Many thanks to prof.ing. Dino Molli and to his home page. |
| M20_Betr[...].pdf (77MiB) |  |
De | M20 Betriebssystem PCOS Release 2.0, many thanks to Benjamin Eberhardt |
| pcos.zip (3.4MiB) |
 |
It | The PCOS 2.0 user manual, from the Tix's 1000 bit site. |
| m20qref.pdf (4.7MiB) |  |
De | The Olivetti M20 quick reference guide for PCOS 2.0 and BASIC. Many thanks to Chris Groessler and to his FTP site. |
| olive[...].pdf (7.4MiB) |  |
De | The PCOS 2.0 Professional Computer Operating System Betriebssystem Benutzer Handbuch 1984. Many thanks to Heiko. |
| M20 Bed[...].pdf (31.6MiB) |  |
De | M20 Bediener Handbuch PCOS. Many thanks to Benjamin Eberhardt. |
| PCOS_30_UG.pdf (71.1MiB) |  |
En | The PCOS 3.0 user manual. |
| CPM86Parte1.PDF (1.9MiB) CPM86Parte2.PDF (2.4MiB) CPM86Parte3.PDF (1.1MiB) CPM86Parte4.PDF (2.9MiB) |
 |
It | The CP/M-86 user manual. Many thanks to Matteo. |
| olive[...] 1983.PDF (46.1MiB) |  |
En | The M20 UCSD p-system, release IV, Operating System User Guide. Many thanks to Heiko. |
| olive[...] 1983.PDF (76.1MiB) |  |
En | The MS-DOS Disk Operating System User Guide October from 1983. Many thanks to Heiko. |
Manuals for BASIC and other languages
| File | Image | Lang. | Description |
|---|---|---|---|
| M20_Han[...].pdf (140.9MiB) |  |
De | M20 Handbuch BASIC 8000 Unter PCOS 1.3, many thanks to Benjamin Eberhardt |
| M20_Han[...].pdf (141.5MiB) |  |
De | M20 Handbuch BASIC 8000 Vorläufige Ausgabe, many thanks to Benjamin Eberhardt |
| M20_BASIC.pdf (11.6MiB) |  |
It | The description of the Microsoft Basic used in M20 (some pages are misplaced in the pdf file). Many thanks to prof.ing. Dino Molli and to his home page. |
| m20lbmu.pdf (45.4MiB) |  |
It | The description of the Microsoft Basic used in M20, from the Tix's 1000 bit site. |
| pasca[...].pdf (7.5MiB) |  |
It | The Pascal user manual. Many thanks to Matteo. |
| pasca[...].pdf (7.1MiB) |  |
En | The Pascal user manual. Many thanks to Matteo. |
| olive[...].pdf (7.2MiB) |  |
De | BASIC 8000, Band I Sprachelemente, alphabetisch. Many thanks to Heiko. |
| olive[...].pdf (7.2MiB) |  |
De | BASIC 8000, Band II Anwendung der Sprachelemente. Many thanks to Heiko. |
| olive[...].pdf (99MiB) |  |
En | Olivetti M20 BASIC Language Reference Manual fourth edition June 1983. Many thanks to Heiko. |
| olive[...].pdf (5.5MiB) |  |
En | Olivetti M20 CBASIC-86 Language Refernce Manual First Edition November 1983. The BASIC for the CP/M 86 that could run using the APB8086 board. Many thanks to Heiko. |
| olive[...].pdf (5.5MiB) |  |
En | UCSD p system release IV FORTRAN Language User Guide December 1983. Many thanks to Heiko. |
Low-level and system programming
| File | Image | Lang. | Description |
|---|---|---|---|
| M20_[...].pdf (75.5MiB) |  |
En | M20 The assembler 3.0 user guide, many thanks to Andreas Ziermann. A very complete resource! |
| olive[...] 1983.PDF (77.6MiB) |  |
En | The ASSEMBLER User Guide Release 3.0 June 1983. Many thanks to Heiko. |
| PCOS_[...].pdf (19.1MiB) |  |
En | Assembler manual and relationships with the PCOS. Assembled from tiffs in Chris' FTP site. |
| ioepug.pdf (14.6MiB) |  |
En | I/O with external peripherals manual. Many thanks to Chris Groessler and to his FTP site. |
| v24-pe[...].pdf (2.2MiB) |  |
De | V24 Peripherie Programmierhandbuch. Many thanks to Chris Groessler and to his FTP site. |
| Z8000_[...].pdf (4.7MiB) |  |
En | Zilog Z8000 programming guide, by Z8000 home page, by Jurjen Kranenborg. |
| olive[...] 1983.PDF (85.1MiB) |  |
En | The PCOS System Programmers Guide Release 3.0 December 1983. Many thanks to Heiko. |
Manuals dedicated to the M20 hardware
| File | Image | Lang. | Description |
|---|---|---|---|
| hw1.pdf (5.3MiB) |  |
En | Hardware manual, part 1. Many thanks to Chris Groessler and to his FTP site. |
| hw2.pdf (5.8MiB) |  |
En | Hardware manual, part 2. Many thanks to Chris Groessler and to his FTP site. If you are searching the schematics of the M20, look at this page for a high resolution scan and a modern redrawn version. |
| Z8001.pdf (4.8MiB) |  |
En | The Z8001 datasheet provided by SGS-Thomson (now ST microelectronics). |
| manua[...].pdf (21.6MiB) |  |
It | The Olivetti M20 service manual in italian. Many thanks to Roberto Bazzano. |
| manua[...].pdf (166MiB) | |
It | The Olivetti M20 service manual in italian, high resolution version. Many thanks to Roberto Bazzano. |
| manua[...].pdf (8.6iB) |  |
It | The Olivetti M20 service manual in english from April 1983. Many thanks to Heiko. | .
| olive[...].pdf (7.6MiB) |  |
De | Allgemeines Service-Handbuch. Many thanks to Heiko |
Olivetti peripherals
| File | Image | Lang. | Description |
|---|---|---|---|
| PR147[...].pdf (11.4MiB) |  |
De | The Olivetti PR1470 printer user manual in German. Many thanks to Chris Groessler and to his FTP site. |
| pr430.pdf (3.6MiB) |  |
De | The daisy printer Olivetti PR430 user manual. Many thanks to Chris Groessler and to his FTP site. |
| olive[...].pdf (7.4MiB) |  |
It | The PR1450 printer manual. Many thanks to Matteo Pisani. |
| pr320-[...].pdf (13MiB) |  |
De | The Olivetti PR320 printer user manual. Many thanks to Christian Groessler. |
Software
| File | Image | Lang. | Description |
|---|---|---|---|
| quade[...].pdf (25.7MiB) |  |
It | The Olivetti Quaderno Software M20, seconda edizione. A list of all programs available in january 1983 for the Olivetti M20. Here is the Front page. Many thanks to Matteo Pisani. |
| M20_I[...].pdf (26.9MiB) |  |
En | M20 ISAM User Guide, many thanks to Benjamin Eberhardt |
| Oliword.pdf (4.7MiB) |  |
En | The Oliword manual. There is also a scan of the keyboard overlay for Oliword and the full screen file editor. Many thanks to Dwight Elvey and to Chris Groessler with his FTP site. |
| Oliwor[...].pdf (0.9MiB) |  |
De | Oliword Referenzkarte. Many thanks to Benjamin Eberhardt. |
| olisort.pdf (24MiB) |  |
En | Olisort manual. Many thanks to Chris Groessler and to his FTP site. |
| M20_OLISORT.pdf (14.7MiB) |  | It | The description of the Olisort program, which was a general-purpouse sorting program developed by Olivetti. Many thanks to prof.ing. Dino Molli and to his home page. |
| ISAM.pdf (10.1MiB) |  |
En | ISAM (Index Sequential Acces Method) reference manual. Assembled from tiffs in Chris' FTP site. |
| M20_ISAM.pdf (3.4MiB) |  |
It | The description of the ISAM (Index Sequential Acces Method) program, that was a sort of database developed by Olivetti, that could be easily controlled with PCOS and BASIC. Many thanks to prof.ing. Dino Molli and to his home page. |
| DBMSParte1.PDF (260KiB) DBMSParte2.PDF (1.6MiB) DBMSParte3.PDF (724KiB) |
 |
It | The Olivetti Data Base Management System manual. Many thanks to Matteo. |
| eightbit.pdf (4.1MiB) |  |
En | The Olivetti Eight Bit (Z80 emulation for CP/M) user manual. Many thanks to Roelof Beverdam. |
| olive[...].pdf (1.9MiB) |  |
De | The handbook manual of the FAKTURIERSYSTEM program. Many thanks to Heiko. |
| olive[...].pdf (1.9MiB) |  |
De | The ISAM Indexsequentieller Dateizugriff Programmierhandbuch from 1983. Many thanks to Heiko. |
| olive[...].pdf (2.4MiB) |  |
De | The OLICOM Batch Terminal Emulationen Benutzerhandbuch from 1983. Many thanks to Heiko. |
| olive[...].pdf (111MiB) |  |
En | The OLINUM Numerical Analysis User Guide July 1982. Many thanks to Heiko. Fancy solving a linear system of equations? Diagonalizing a matrix with your favourite 16-bit computer? OLINUM is the software for you! |
| olive[...].pdf (1.8MiB) |  |
De | The OLITERM Interaktive und asynchrone Datenuebertragung Benutzerhandbuch 1983. Many thanks to Heiko. Fancy solving a linear system of equations? Diagonalizing a matrix with your favourite 16-bit computer? OLINUM is the software for you! |
| olive[...].pdf (25.5MiB) |  |
En | The OLIWORD 2 The M20 Word Processing Package User Guide First Edition September 1983. Many thanks to Heiko. |
| olive[...].pdf (2.8MiB) |  |
De | The OLIWORD Textverarbeitung Anwender Handbuch November 1983. Many thanks to Heiko. |
Page Log
- September 29, 2025 - Added the The ASSEMBLER User Guide Release 3.0 June 1983 and the UCSD p system release IV FORTRAN Language User Guide December 1983. Many thanks to Heiko Schumann.
- September 28, 2025 - Corrected a typo, added the PCOS System Programmers Guide Release 3.0 December 1983 and the service manual in english from April 1983. Many thanks to Heiko.
- September 27, 2025 - Added the OLIWORD Textverarbeitung Anwender Handbuch November 1983, OLIWORD 2 The M20 Word Processing Package User Guide First Edition September 1983, OLINUM Numerical Analysis User Guide July 1982 and PCOS 2.0 Professional Computer Operating System Betriebssystem Benutzer Handbuch 1984. Many thanks to Heiko.
- September 26, 2025 - Added the MS-DOS Disk Operating System User Guide, ISAM Indexsequentieller Dateizugriff Programmierhandbuch and OLICOM Batch Terminal Emulationen Benutzerhandbuch. Many thanks to Heiko.
- September 24, 2025 - Added the FAKTURIERSYSTEM manual, CBASIC-86 Language Refernce Manual, BASIC Language Reference Manual fourth edition June 1983. Many thanks to Heiko.
- September 21, 2025 - Added the M20 UCSD p-system, release IV, Operating System User Guide manual, the Allgemeines Service-Handbuch, the BASIC 8000, Band I Sprachelemente, alphabetisch, the the BASIC 8000, Band II Anwendung der Sprachelemente. Many thanks to Heiko.
- April 13, 2025 - Added the German PR1470 manual
- November 11, 2024 - Slight adjustment to new site code. Credit Heiko Schumann for the Oliterm manual.
- November 9, 2024 - Added the De Oliterm user manual. Uniformize the dates in this log.
- July 29, 2023 - Page restructuring.
- July 24 2023 - Added M20 Handbuch BASIC 8000 Vorläufige Ausgabe, M20 Betriebssystem PCOS Release 2.0, M20 Handbuch BASIC 8000 Unter PCOS 1.3, M20 ISAM User Guide, M20 The assembler 3.0 user guide
- January 2, 2023 - Added the M20 Bediener Handbuch PCOS and the Oliword Referenzkarte. Corrected links to Tix's website.
- December 24, 2022 - Added the PCOS 3.0 manual.
- December 22, 2022 - Added the eightbit manual.
- January 30, 2008 - Added PR320 manual.
- December 7, 2007 - Reduction of the size of the Technical assistance manual.
- December 4, 2007 - Added the Technical assistance manual.
- November 17, 2007 - Added the DBMS manual.
- November 11, 2007 - Added the CP/M-86 manual.
- November 15, 2007 - Added the Pascal manual.
- April 28, 2007 - Added the V24 Peripherie Programmierhandbuch manual.
- 2005 - page creation.
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