Home Books The Gateway Guide to the ZX81 and ZX80The Gateway Guide to the ZX81 and ZX80SOLD OUT🔍$8.00Out of stockEmail me when available Description Mark Charlton. 156 pages. Additional information Weight8 ozDimensions9 × 6 × .5 inRelated productsSOLD OUTMTERM (Communications Program) $4.00Out of stockRead more Email me when availableMachine Code on the Timex/Sinclair 2068: The Best of the Timex Community $15.00Buy this book SOLD OUTCrossfire $10.00Out of stockRead more Email me when availableEverything Timex/Sinclair: The Guide to All Hardware, Software and Accessories for the Timex/Sinclair Computers $29.99Buy this book