Computers: their history and how they work
An introduction to computers which traces their history from the abacus to the modern digital computer, explains how various computers work, defines the special terminology connected with them, discusses their importance in the modern world, and outlines career opportunities in the computer field.
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abacus alphabetic analog computer Analytical Engine analyze answers automatically auxiliary storage Babbage binary number system bit positions calculation cathode ray tube Census central processing unit columns complete computer system computer user computer's core memory counting data cell data communications terminals data processing datum decimal number decisions designed developed digital computer direct directly electronic engineering ENIAC equipment equivalent essing faster film flow chart Herman Hollerith holes input and output instrument involved keyboard keypunch language magnetic cores magnetic disks magnetic tape magnetized spots mathematical ment mnemonics needed odometer off-line operation optical scanning output devices pencil perform possible for data printed printer prob problem proc procedures production pulses punched cards punched into cards punched paper tape punched-card represent sequence shoes solve source data spacecraft special characters speed stored symbols systems programers tion today's tube TV-like types of computers typewriter visual display