The FM-7 ("Fujitsu Micro 7") is a home computer created by Fujitsu. It was first released in 1982 and was sold in Japan and Spain. It is a stripped-down version of Fujitsu's earlier FM-8 computer, and during development it was referred to as the "FM-8 Jr.".
Although it was designed to be a cut-down version of the FM-8, most notably removing the (expensive) bubble memory technology, the FM-7 was given a more advanced AY-3-8910 sound chip capable of three voice sound synthesis, leading to a strong uptake among the hobbyist computer market in Japan and making it a more popular system than the FM-8.
The FM-7 primarily competed with the NEC PC-8801 and Sharp X1 series of computers in the early 1980s. It was succeeded by the FM-77 series of computers in 1984, which featured backwards compatibility with the FM-7. The FM-77 series was later succeeded by the 32-bit FM Towns in 1989.
The FM-7 is based around the 6809 chip, which was also used in home computers such as the TRS-80 Color Computer and Dragon 32/64, as well as several arcade games.
- Two MC 68B09 CPUs @ 2 MHz: one main CPU and one graphics processor.
- Screen Resolution: 640×200, 8 colors OR 320×200, 262144 colors
- Memory: 40 KB ROM, 64 KB RAM
- Sound: 3-channel (AY-3-8910) PSG chip, built-in speaker mounted near the top of the unit.
- Interfaces: RS-232, monitor and Centronics ports, expansion slots.
- Storage: 5.25" floppy disk
- Operating system: OS-9, (compatible with Color Computer)
- Three slots for optional plug-in cards, including a Z-80 CPU and additional RS-232 ports.
- Full-size keyboard, with keys handling multiple functions (as many as 5, depending on what SHIFT/KANA/GRAPH/etc key is pressed).
- 10 Function Keys at the top, pre-programmed with shortcuts (LIST, etc.).
- Numeric keypad (on right) and cursor-control keys (upper-right).
Source: Wikipedia, "FM-7", available under the CC-BY-SA License.
One of "the three big" 8-bit platforms on the Japanese computer marked, and the predecessor of FM Towns.