Visual 1050
The Visual 1050 was an 8-bit desktop computer sold by Visual Technology in the early 1980s. The computer ran under the CP/M operating system and used 2 400KB, 5¼, SSDD, 96tpi floppy disk drives (TEAC FD-55E) for mass storage with an optional 10Mb external Winchester hard disk drive. In addition to the Zilog Z80 processor clocked at 4 MHz, the Visual 1050 also included a MOS Technology 6502 used as a graphics coprocessor.
Overview
The Visual 1050 featured a dual-processor architecture; Z80A processor as the main CPU and a 6502 to drive the display.
Memory: 160K of RAM was included with the system. 128K of this was programmable and 32K reserved for use by the display processor.
Screen: The display unit was 640×300 pixel, 80×25 character (8×12 dot matrix) green monochrome CRT bit-mapped display. The display offered programmable features which could be invoked from the main processing unit via a character-stream interface built in between the Z80 CPU and 6502 co-processor.
Communication ports An RS-232C serial port and Centronics parallel port.