Hitachi Computers  MB 6881
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Hitachi MB-6881 BASIC Master Level 2

The Hitachi MB-6881 came with BASIC Master Level 2 that supported floating point calculations. Level 1 only supported integer calculations. However, the Level 2 series lacked Hi-resolution graphics and the Kanji Characterset. Hitachi corrected this in Basic Master Level 3.

Motorola 6800 CPU

The 6800 is an 8-bit microprocessor designed by Motorola in 1974. The processor was developed as part of the M6800 Microcomputer System that was announced in the same year.

The 6800 has a 16-bit address bus that can directly access 64KB of memory and an 8-bit bi-directional databus. The CPU has a total of 72 instructions using seven different addressing modes, resulting in 197 opcodes. The original 6800 used a clock frequency of up to 1 MHz, while later versions increased this limit to 2MHz.

The 6800 was used in various computer systems and point of sale terminals. It can also be found in older arcade systems and pinball machines. It was succeeded by the MC6802 which was released in 1977. This CPU had 128 bytes of RAM on board and an internal clock oscillator. The later produced Motorola 6809 was stil backwards compatible with the 6800.

Technical Details
Released 1979 Brand Hitachi Type Hitachi Computers Basic Master Name MB 6881 CPU Class 6800 CPU Motorola 6800 @ 0.75MHz Memory RAM: 8kB
ROM: 18kB
Sound Chip none Sound 5bit D/A Converter Display Chip none Display 32x24 text Best Text 32x24 Best Color Black and White Best Graphics Text Only Sprites none System OS MB-6880 BASIC Storage External Tape Original Price 228000
Related Systems
Hitachi Computers Basic Master
MB  6881 (1979)
Related Media
Hitachi Basic
Books about the Hitachi Basic Master computers
I/O Magazine
Japanese Magazine about home computers in Japan such as the Hitachi Basic Master, Sharp MZ, and NEC home computers.
The 6502/6809 Journal
World Wide Web Links
Wikipedia: Motorola 6800 CPU
The 6800 is an 8-bit microprocessor designed by Motorola in 1974.