2K RAM Pack
Static RAM expansion; works with built-in RAM.
DIRECTORY allows you to read names of programs saved on cassette. RECORD program allows you to save and load 96 byte data records on tape and can be incorporated into other programs. 1K.
Allows ZX81 to run 48K Basic programs including up to 16K of assembly code. ZX81 sits on custom built case containing the Memotech.
48K Memory Extension Read More »
8 independent relays with LED status indicators and 8 TTL inputs with Schmitt trigger buffers. Single POKE to change/latch each relay. Read all 8 inputs in a single PEEK. More than one BB-1 can be attached to the computer. The BB-1 was used for:
BB-1 Control Module Read More »
Book or cassette of 30 programs, including: Fortress, Balloon, Odd Man Out, Lunar Landing, Master Code, Orbital Invaders.
The Cambridge Collection Read More »