The Timex Sinclair 1000 is the American version of the Sinclair ZX81; the two machines are nearly identical, though the Timex did ship with a whole extra kilobyte of RAM! Imagine that. Anyway. Find out more about the Timex Sinclair here and have a look at a free online emulator here. Also do have a look at this Timex Sinclair 1000 & Personal Printer eBay auction. Seller only ships to US and Canadian addresses.