| Visual 1050 | |
| Manufacturer: | Visual Technology |
| Media: | 2 400kb 5¼-inch floppy disks |
| Os: | CP/M Plus |
| Input: | Keyboard Keytronic full stroke 93-key with numeric key pad & 17 function keys |
| Cpu: | Zilog Z80 clocked at 4 MHz with a MOS Technology 6502 graphics coprocessor |
| Memory: | 128kB RAM, 8kb ROM |
| Display: | monochrome 80 chars. × 25 lines, 640 × 300 pixels |
| Dimensions: | CPU - 5H × 17W × 17Din |
| Weight: | 15lbs |
| Graphics: | MOS Technology 6502 |
The Visual 1050 was an 8-bit desktop computer sold by Visual Technology in the early 1980s.[1] [2] 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 Z80A processor clocked at 4 MHz, the Visual 1050 also included a MOS Technology 6502 used as a graphics coprocessor.[3] [4]
The Visual 1050 featured a dual-processor architecture; Z80A processor as the main CPU and a 6502 to drive the display.[5]
In addition to the Z80 and 6502 chips, the system also included a Intel 8255A PIO, a Intel 8251A USART, a Intel 8214 Programmable Interrupt Controller, a Motorola 6845 CRT controller, a Western Digital 1793 floppy disk controller, and a OKI MSM5832 real time clock.[6]
160K of RAM was included with the system, with 128K of this programmable and 32K reserved for use by the display processor.
The display was bit-mapped at a resolution of 640 × 300 pixels with 80 × 25 characters (at 8 × 12 pixel each) on a green monochrome CRT. 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 coprocessor.[7]
Two communication ports were available: an RS-232C serial port and a Centronics parallel port.
The machine had a Keytronic full stroke 93-key keyboard with numeric keypad and 17 function keys.
A standard Visual 1050 shipped with CP/M Plus operating system, a CP/M source disk, a copy of WordStar word processor with MailMerge software, Microsoft Multiplan spreadsheet, Digital Research DR Graph charting software, Digital Research CBASIC computer language, and an RS-232C communications program. Optionally there was support for a 10MB Winchester hard-drive via a Xebec S1410 Disk Controller.
