by musovern | Sep 4, 2020 | Vintage Computer
In Leningrad they developed a clone of the ZX Spectrum, replacing the ULA by some TTL logic. Installed Socket and some IC’s Ppowered by the Z80 Cpu,16K RAM Connected the Pi RGB to HDMI for testing the board. Colour test what now on to a few games. First game...
by musovern | Feb 15, 2020 | Vintage Computer
A remake of the EA 2650 mini system In May 1978, Electronics Australia described a small development board based on the Signetics 2650 microprocessor. For many people in Australia (the author included), this was the first computer that was cheap enough to buy and...
by musovern | Feb 3, 2020 | Vintage Computer
The Apple II+ was the successor of the Apple II. It was fully compatible with the Apple II, however it had some new features: a new ROM containing the AppleSoft Basic (floating point version written by Microsoft), a new auto-start (store in ROM) for easier start-up...
by musovern | Nov 17, 2019 | Vintage Computer
The IBM Model 5160 was as you might guess, a more powerful version of the IBM PC Model 5150. The ‘XT’ designation distinguished it from the 5150 ‘PC’. It was introduced in 1983 and, like it’s predecessor the IBM 5150, it was available...
by musovern | Jun 27, 2019 | Vintage Computer
The Nascom 1 and 2 were single-board computer kits issued in the United Kingdom in 1977 and 1979, respectively, based on the Zilog Z80 and including a keyboard and video interface, a serial port that could be used to store data on a tape cassette using the Kansas City...
by musovern | May 27, 2019 | Vintage Computer
The story of the development of the Apple I is well known and has become a “legend”. Steve Wozniak, who was working for Hewlett-Packard at the time, wanted to build his own computer. He couldn’t afford the Intel 8080 CPU, which was very popular, as it was used in the...
