Print-Planets
Uses the high resolution capabilities of the ZX printer to plot the positions of the planets in their orbits. Menu driven with 4 plotting options. Orbits are delineated and planets are plotted with their astronomical symbols. 16K.
Timex/Sinclair 1000
Relativity
Graphically demonstrates effects of relativistic velocities on length of a spacecraft plus time dilation effects. Demonstrates the “twin paradox” on trips to Alpha Centauri and the Andromeda Galaxy.
Telescope Design
Asks for desired objective diameter and f/ratio, inputs physical dimensions and optical data for a Newtonian reflector optical assembly. Saves hours of calculation. 2K.
TS/Basic
A Basic programming form. High quality erasable bond paper 8 1/2 x 11. 24 line screen mapped on the front; 22 line screen on the back with coordinates; varied line density for legibility; area for notes and variables.
UM-16 16K RAM Pack
“Ultimate memory” RAM pack. Battery backup, reset switch, PROM/ROM socket.
UM-16 16K RAM Pack Read More »
Automatic Repeat Function
Module with built-in self-test LED, automatic and continuous character input.
Automatic Repeat Function Read More »
Big-Key Legends
Dry transfer key cap graphics in red and black; identical to those on the Sinclair keyboard. For use on full size keyboards with standard 1/2″ key caps.
Control Module
Power switch, ON indicator, load/save isolation switch with load level monitor and reset control. Isolation switch prevents feedback during program save. Reset allows recovery from crashes without powering down peripherals.