Heathkit H8
The H8 was a kit made by Heathkit and was sold from 1977. It was one of the first computers for the home user. The basic kit cost US $ 375 at launch.
technology
The computer was based on an Intel 8080A . In the basic configuration, it had a keyboard with 16 keys for entering octal data. An LED display made up of seven-segment displays was installed to display data . The basic kit contained a ROM with a size of 8 kB. In addition, memory cards with a size of 4 kB each were available, with which the main memory could be expanded to 32 kB. The system had a proprietary 50-pin bus for connecting external devices . The system was operated with the HDOS operating system .
However, the kit alone was not yet ready for use. At least one H8-1 memory expansion card for $ 140 was required. In addition, the system could be expanded to include the following components:
- Datasette H8-5 priced at US $ 110
- H9 terminal with screen and alphanumeric keypad for US $ 530
- H10 tape pen / punch for $ 350
Starting in 1978, a floppy disk drive with two drives was available for $ 675.
Web links
- Documentation (English)
Individual evidence
- ^ Anthony R. Curtis: Everyman's home computer is here. Popular Mechanics, Oct 1977, p. 92.
- ^ A b Roy A. Allan: A History of the Personal Computer: The People and the Technology. Allan Publishing, 2001, ISBN 0-9689108-0-7
- ↑ a b c Website about the H8 at oldcomputers.net , accessed on December 19, 2008
- ^ A b Advertisement by Heathkit in Popular Science magazine, November 1977 , accessed December 19, 2008