Philips :YES
The Philips :YES was a home computer/personal computer released by Philips Austria, in 1985.[1][2] It was not 100% compatible with the IBM PC, a reason given for its commercial failure. The system was sold in limited quantities only.
| Type | Personal computer |
|---|---|
| Release date | 1985 |
| Operating system | DOS Plus, MS-DOS, Concurrent DOS |
| CPU | Intel 80186 @ 8 MHz |
| Memory | 128 KiB to 640 KiB |
Technical specifications
- Microprocessor: Intel 80186 @ 8 MHz
- ROM: 192 KiB
- RAM: 128 to 640 KiB
- Keyboard: mechanical, with 93 keys
- Operating system: DOS Plus (in 64 KiB ROM), MS-DOS, Concurrent DOS
- Storage: two 3½-inch drives, 720 KiB each. One or two optional external 3½-inch or 5¼-inch drives.[3]
- Video modes:[4]
- A0: Text, 40 columns × 25 rows, 8 colours
- A1: Text, 80 columns × 25 rows, 8 colours
- A2: Text, 80 columns × 25 rows, 2 colours + intensity
- G0: 160 × 252 pixels, 16 colours
- G1: 640 × 252 pixels, 2 colours + intensity
- G2: 320 × 252 pixels, 16 colours
- G3: 640 × 252 pixels, 4 colours
The built-in graphics hardware supported composite video output. An additional video module allowed output to TTL monochrome monitors, colour monitors or SCART televisions.[5]
Video RAM was shared with system RAM. Before using graphics modes, memory had to be allocated for them with the GRAPHICS or GRCHAR commands.[6]
An expansion card (the Professional Expansion Board) provided:[7]
Operating system versions
Known operating systems adapted for the Philips :YES include:
- DOS Plus 1.? in ROM (with BDOS 4.1). The BDOS in ROM does not implement the S_OSVER call, which would have returned the version number to display.
- DOS Plus 1.1 on disk[9] (with BDOS 4.1)
- DOS Plus 1.2 on disk (with BDOS 4.1)
- DOS Plus 2.1 on disk (with BDOS 5.0)
- Concurrent DOS
References
- http://www.computerwoche.de/a/mit-neuem-mikro-yes-in-den-weltmarkt,1170777
- https://books.google.com/books?id=n5qBImUV6NQC&pg=PA34&lpg=PA34
- :YES Philips Personal Computer - User Guide. Philips. 1985. p. 7-1.
- :YES Philips Personal Computer - Getting Started. Philips. 1985. p. C-1.
- :YES Philips Personal Computer - Getting Started. Philips. 1985. pp. 1–15, 1–16, C-1.
- :YES Philips Personal Computer - User Guide. Philips. 1985. p. 5-1.
- :YES Philips Personal Computer - Getting Started. Philips. 1985. pp. 1–7.
- :YES Philips Personal Computer - User Guide. Philips. 1985. p. 8-1.
- :Yes product management (1985), README file for :YES Release 2 - DOS Plus 1.1 maintenance version (README.DOS file on maintenance disk), Philips Austria,
This file contains additional information on the use of DOS Plus 1.1 on the :YES Rel 1 and :YES Rel 2.
External links
- Computermuseum München: Philips :Yes (in German)
- Allard's Computer Museum Groningen: :YES Philips PC, archived from the original on 2008-11-06, retrieved 2013-12-14 (with pictures)
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