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Philips P2000

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Philips P2000

Philips P2000
Type Home computer
Release date March 1980[1]
Operating system 4 KB ROM containing BASIC and JWSDOS, CP/M with extra card[1] + 12 KB Cartridge
CPU Zilog Z80 @ 2,5 MHz
Memory 16 KB RAM, expandable to 48 KB [1]
Display Text mode 40 x 25, 7 Colors (Teletext-type)
Sound 1 channel (Beep)
Connectivity 2 cartridge slots
T version: TV aerial, RGB, Serial
M version: Monochrome composite video, FDD interface, Serial
Philips P2000T

The Philips P2000T home computer was Philips' first real entry in the home computer market, after the Philips Videopac G7000 game system (better known in the U.S. as the Magnavox Odyssey2) which they already sold to compete with the Atari 2600 and similar game systems. There was also an P2000M version with an additional 80-column card for use with a monochrome monitor. This version shipped with a monitor cabinet also housing a dual 5.25" floppy drive.[1]

The P2000T was a Z80-based home computer that used a Teletext display chip to produce the video picture and a small Mini-Cassette recorder for 42 kilobytes of mass storage capacity.[1] The Mini-Cassette was treated as a floppy drive from the user's perspective while using the automatic search for a program (CLOAD command) or free space (CSAVE). A command to display the directory of the cassette also exists.[1] Philips used components they already produced for other markets (television sets and dictation machines) to quickly design a small computer system. It was partially designed by Austrian professor Dieter Hammer.

They also copied the ROM cartridge system from their Videopac G7000 game system. One of these cartridges contained Microsoft BASIC. It was also possible to use cassette tape floppies.

Although the Teletext video chip permitted a quick entry into the home computer market, it was also the major weakness of the P2000T. Using the Teletext standard in itself was not a bad idea because it did support eight colors and rudimentary graphics. But unlike later entries in the home computer market which also supported a Teletext display mode, such as the venerable BBC computer and the Oric Atmos, the P2000T did not support a high resolution display mode. This made it very difficult to develop interesting games for it.

As a result, the P2000T had only limited success, and Philips later replaced it with their MSX machines. The machine did gain popularity in The Netherlands, especially in the areas of science, education, and data communications (videotex).

The P2000M incorporated two 5,25-inch floppy disk drives beside a built-in monochrome screen. It could run CP/M or Microsoft BASIC applications, depending on the cartridge used. It was incompatible with the P2000T in the way it handled display of special characters (color, "graphics mode"), which made most P2000T games unplayable.

Initially, in 1981, the computer cost 3000 guilders (€1361). In 1984 the price was lowered to 1200 guilders (€544,50).[2][3]

The P2000 system can be emulated with the MESS software.[1]

See also

References

  1. ^ a b c d e f g "TnTRBOX presents the Philips P2000".  tntrbox.com. Accessed 2 June 2009.
  2. ^ "Philips P2000 - a solid, dutch home computer".  computermuseum.50megs.com. Accessed 2 June 2009.
  3. ^ "PRE-EURO EU Currencies conversion calculator".  sysmod.com. Accessed 2 June 2009.

External links

  • P2000 architecture
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