TRS-80 Model 1
Posted by musovern on May 19th, 2019 in TRS80, Vintage Computers | 0 comments
The Tandy TRS 80 model 1 was the first member of one of the most famous computer family. It was one of the first home computer and was launched at the same time as famous computers like the Apple II or the Commodore PET. Beside, Tandy competitors nicknamed was “Trash-80”.
The TRS-80 was developed was developed within the Radio Shack engineering group, based upon several processor chips, SC/MP, PACE, 8008, 8080 and finally the Z80.
It used a black & white TV set, made by RCA, without tuner as monitor. The earlier models use a poor basic called Basic Level 1 (the Basic and the OS fit in the 4 KB ROM!). It was replaced later with the Basic Level 2 which needed a 12 KB ROM.
Read More...My S-100 Boards
Posted by musovern on Apr 29th, 2019 in My S-100 Boards | 0 comments
These are my current finished images of S-100 Boards Console I/O board Propeller Chip Driven v2.51 ,Serial I/O Board v3.1, Bus extender ,4MB RAM board (with 1MB installed) ,MS-DOS support board v3a, Z80 CPU board v2, 8088 CPU board v1, Dual IDE board v3a, SMB (System monitor board) v2
Read More...SBC-8080A
Posted by musovern on Apr 20th, 2019 in SBC-8080A, Single Board Computers | 0 comments
The SBC8080 is a simple board computer consisting of an Intel 8080 based CPU board and a SUB board with a memory / terminal interface. Over time, this product will be the printed circuit board of the CPU board. The parts to be placed on the printed circuit board should be prepared and soldered by yourself. The finished appearance is shown below.
Read More...Commodore 64
Posted by musovern on Apr 20th, 2019 in Commodore | 0 comments
The Commodore 64 is an 8-bit home computer introduced by Commodore International in January 1982. Volume production started in the spring of 1982, with machines being released on to the market in August at a price of US $595.Preceded by the Commodore VIC-20 and Commodore MAX Machine, the C64 features 64KB (65,536 bytes) of memory with sound and graphics performance that were superior to IBM-compatible computers of that time. It is commonly known as the C64 or C=64 (after the graphic logo on the case) and occasionally as the CBM 64 (for Commodore Business Machines), or VIC-64. It has also been affectionately nicknamed the “breadbox” and “bullnose” due to the shape and color of the first version of its casing.
Read More...Amstrad PCW8256
Posted by musovern on Jan 30th, 2019 in Amstrad, Vintage Computers | 0 comments
The PCW 8256 was launched in September 1985, and had 256 KB of RAM and one floppy disk drive. Launched a few months later, the PCW 8512 had 512 KB of RAM and two floppy disk drives. Both systems consisted of three units: a printer; a keyboard; and a monochrome CRT monitor whose casing included the processor, memory, motherboard, one or two floppy disk drives, the power supply for all the units and the connectors for the printer and keyboard. The monitor displayed green characters on a black background. It measured 12 inches (30 cm) diagonally, and showed 32 lines of 90 characters each. The designers preferred this to the usual personal computer display of 25 80-character lines, as the larger size would be more convenient for displaying a whole letter. The monitor could also display graphics well enough for the bundled graphics program and for some games.
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