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PC-6001 mkII

From NEC Retro

Revision as of 12:30, 22 January 2022 by Black Squirrel (talk | contribs)
PC6001mkII logo.png
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PC-6001 mkII
Manufacturer: NEC
Release Date RRP Code
PC-6001 mkII
JP 		¥84,80084,800

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The PC-6001 mkII is a home computer released by NEC and upgrade to the PC-6001. It was released as part of the PC-6000 series.

The PC-6001 mkII is backwards compatible with all PC-6001 games, but its new graphics modes allow for its own selection of software.

Hardware

PC6001mkII Boot.png

The PC-6001 mkII is an upgrade over the PC-6001, incorporating several of the computer's add-ons while adding some new features of its own. While the CPU was not changed, the mkII has 64KB of RAM; double the amount of an expanded PC-6001. It also has a higher resolution text mode, and two new graphics modes, 320 x 200 (4 colours) and 160 x 200 (15 colours). Voice synthatsis is built into the machine by default, rather than requiring a separate purchase as was the case with the PC-6001.

Many of these new features are facilitated by the inclusion of a new form of BASIC, "N60m BASIC", however a desire to keep compatibility with the older PC-6001 means the system actually comes equipped with five variants of BASIC. Modes 1 and 2 emulate the stock PC-6001 with 16KB and 32KB of RAM, respectively, while modes 3 and 4 incorporate N60 Kakuchou BASIC, which required a separate cartridge on the older machine.

N60m BASIC and the new mkII features are only available in mode 5, and as the computer continues to use the "page" system of dividing up memory, software was forced to supply both a "mode" and "page number" to ensure users would could run programs correctly.

Slight differences exist in how the PC-6001 mkII handles the older graphics modes; the text-based graphics mode 1 now uses white text on a black background, rather than two shades of green. While most PC-6001 software works fine, border colours are often different, the mkII usually rendering black in the unused space.

The machine adds an RGB video output, allowing for much cleaner visuals when connected to a compatible monitor, and replaces the chiclet keyboard of the PC-6001 with a full travel alternative, as seen on with other NEC machines of the era.

Technical specifications

List of games

References



PC-6000 series hardware
PC-6001 (NEC TREK) (1981) | PC-6001 mkII (1983) | PC-6001 mkII SR (1984)
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