Launched in 1981, Sir Clive Sinclair's ZX81 - successor to his ZX80 released the year before - was designed to be a low-cost introduction to home computing for the general public. It was a hugely successful machine, with over one and a half million 'official' units being sold; many more unauthorised 'clones' were also produced, particularly in Russia and other Eastern Bloc countries of the era. One could either purchase the machine pre-built, or - as a significant number of consumers did - buy it in kit form for assembly at home at a slightly cheaper price. This 'DIY' approach, encouraged by Sinclair Research, became a core element of the computer's genetic make-up. Those who were comfortable putting together the four silicon chips and other such components were just as keen to poke around the machine's memory, learning as much as they could about its capability; the programs they would write could easily be shared once saved onto a standard audio cassette.

This book helps the reader truly understand how the ZX81 works, with sections covering everything from the structure of the Z80 microprocessor used in the machine to the computer's registers, ALU and more.

With an introduction to both binary and hex, Understanding Your ZX81 ROM helped many people get the most out of their machine in the very earliest days of home computing.

"About this title" may belong to another edition of this title.

Store Description

SuperBookDeals.com is your top source for finding new books at the absolute lowest prices, guaranteed ! We offer big discounts - everyday - on millions of titles in virtually any category, from Architecture to Zoology -- and everything in between. Discover great deals and super-savings, on professional books, text book titles, the newest computer guides, or your favorite fiction authors. You'll find it all - at HUGE SAVINGS - at SuperBookDeals. Browse through our complete online product catalog today. Serving customers around the world for years, we help thousands find just the books they're looking for -- at incredibly low, bargain prices.

Visit Seller's Storefront

Seller's business information

Expert Trading Limited
9220 Rumsey Road, Suite 101, Columbia, MD, 21045, U.S.A.

Sale & Shipping Terms

Terms of Sale

Company Name: GreatBookPrices
Legal Entity: Expert Trading, LLC
Address: 9220 Rumsey Road, Ste 101, Columbia MD 21046
Email address: CustomerService@SuperBookDeals.com
Phone number: 410-964-0026
consumer complaints can be addressed to address above
Registration #: 52-1713923
Authorized representative: Danielle Hainsey

Shipping Terms

Internal processing of your order will take about 1-2 business days. Please allow an additional 4-14 business days for Media Mail delivery. We have multiple ship-from locations - MD,IL,NJ,UK,IN,NV,TN & GA

Shipping rates within U.S.A.

Shipping rates within U.S.A.
Order quantity	8 to 14 business days	5 to 14 business days
First item	US$ 2.64	US$ 2.64

Delivery times are set by sellers and vary by carrier and location. Orders passing through Customs may face delays and buyers are responsible for any associated duties or fees. Sellers may contact you regarding additional charges to cover any increased costs to ship your items.