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MSX 1

Hitachi MB-H21

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msx_mbh21

Ebay

The Hitachi MB-H21 MSX Computer

This was basically a cheaper version of the Hitachi MB-H2 computer. The built in cassette recorder was removed, and the memory was reduced to 32kByte, which made this machine much more affordable. It was released in the Japanese market around the same time as the MB-H2 computer

Technical Details✨

Released 1984

Country Japan

Brand Hitachi

Type MSX 1

Name Hitachi MB-H21

CPU Class Z80

CPU Zilog Z80A @3.58MHz

Memory RAM: 32kB
VRAM: 16kB

Sound Chip General Instruments AY-3-8910 Programmable Sound Generator

Sound 3 wave channels + white noise

Display Chip TMS9129 VDP Compatible

Display 40x24 text
32x24 16 color text, pattern based
256x192 16 color, 2 color per 8 pix.

Best Text 40x24

Best Color 16 colors (2 per 8 pixels)

Graphics 256x192 in 16 colors

Sprites 1 color, 16x16, 4/scanline, 32 total

System OS MSX 1 BIOS / MSX BASIC

Storage External Tape, ROM cartridges

Original Price ¥49,800

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