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PC-8801 mkII

From NEC Retro

(Redirected from NEC PC-8801 mkII)
PC8801mkII.jpg
PC-8801 mkII
Manufacturer: NEC
Release Date RRP Code
PC-8801 mkII
JP
PC-8801 mkII
JP
(1)
PC-8801 mkII
JP
(2)

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The PC-8801 mkII is the first revision of the PC-8801 released in 1983.

Hardware

Unlike previous "mkII" machines, the PC-8001 mkII and PC-6001 mkII, the PC-8801 mkII is much the same as the original computer, just with a different physical space-saving design and some improved sound capabilities. The processor and RAM configuration is a match for the PC-8801, and thus all PC-8801 software will work on a mkII, however games optimised for the mkII's new sound hardware will either be silent or fall back to the standard beeper if played on an original unit.

Unlike the original PC-8801 where any floppy disk drives had to be connected externally, the mkII case has space for two internal 5¼-inch drives, and was sold in three configurations; the model 10 (no drives), model 20 (one double-density drive) and model 30 (two double density drives). It is also designed so that it can be used used both vertically and horizontaly.

Technical Specifications

  • CPU: NEC PD780C-1 (Z80A-compatible)
  • Resolutions: (N mode / V1 mode)
  • Memory: 40+8+24 = 72 KB ROM, 64+48 = 112 KB RAM
  • Sound: beep, SSG (through beeper) [1]

Software

  • Operating system: NEC PowerMOS (USA only, model 20U), Digital RT-11 (USA and Europe only, model 30U and 30E)
  • BASIC: NEC N-88 Basic

List of games

Promotional material

References

  1. PC-8800 series (Wikipedia)


PC-8800 series hardware
PC-8801 (1981) | PC-8801 mkII (1983) | PC-8801 mkII SR (TR | FR | MR | FH | MH | FA | MA | FE | MA2 | FE2 | MC) (1985-1989) | PC-88 VA (VA2 | VA3) (1987-1988)
stuff
haven't worked it all out yet