Sord M200

The Sord M200 was a substantial all-in-one business microcomputer announced in 1977. It combined a Z80A processor with an AMD arithmetic processor, a built-in 12-inch display and floppy storage in a professional desktop cabinet.

With 64KB of memory, an 80-column screen and Sord’s MF-DOS and Extended BASIC Plus, the M200 targeted scientific and commercial users who needed a complete working system rather than a kit.

Notable Features

• Included an AMD Am9511 arithmetic processor alongside the Z80A.
• Integrated a 12-inch green monitor and 5.25-inch floppy drive.
• Supported as many as four floppy drives.

Historical Significance

• An unusually complete and capable Japanese business microcomputer for 1977.
• Demonstrated Sord’s early emphasis on combining proprietary software with finished hardware.

Collector’s Notes

• At roughly 30kg, the M200 is much heavier than later desktop micros.
• Disk mechanisms and original MF-DOS media are critical to restoration.

Specifications

Technical Information
Name	Sord M200
Manufacturer	Sord Computer Corporation
Launched	Thursday, September 1, 1977
Discontinued	Early 1980s
Country	Japan
CPU	Zilog Z80A at 4 MHz with AMD Am9511 arithmetic processor
Units Sold
Operating System	MF-DOS; Sord Extended BASIC Plus
I/O	Serial, parallel and expansion interfaces
Keyboard	Integrated professional keyboard
Storage	One 350KB 5.25-inch floppy drive; up to four supported
Sound	Internal beeper
Graphics	Character display
Display	12-inch green monitor, 80x24 text
ROM	8KB
RAM	64KB
CPU Speed	4 MHz