Getting Acquainted with Your ZX81
This British book is a good way to move beyond the ZX81 manual if you’re new to computers.
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Timex/Sinclair 1000
The Expandable ZX80 and ZX81
Author offers seven documented projects and several ideas for additional projects.
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Teach Kids to Count with the ZX81
With your ZX81 and some intelligent program design, your TV can provide sharp graphic images of concepts you want to teach.
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Timex Sinclair 1000
Timex, the watch company that has always built Sinclair computers, will market and distribute Sinclair-based products in North and Central America and the Carribean beginning this year.
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Need fast ZX80/ZX81 service?
Service firm repaired partially-assembled ZX81.
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Numbers Held Inexactly on the ZX81
The largest is really this 39-digit number: 170141183420855150474555134919112130560.
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A Message from Thomas B. Woods
Open letter promising continued support; announcing Pro/File 2068.
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Least Squares Method of Curve-Fitting Point Data
Program implements an approach to fitting a set of data points to a line.
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