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Press, 7 May 1987, Page 29

; ■ Nooie developed “Honiean algebra” (1854) Lord Kelvin constructed a specialBaldwin developed a pewc-': tical fuor-prucevs tor H«75). William Bur roughs invented an addingprinting machine . (ItUMI lXnr Fell fopcM ihe "macaroni box calculator (1887). Herman Hollerith developed a fiunctied card. -■ machine' IM7), Jimci Bower* invented a punched card machine (1907) James Monrir introduced the ” Monroe ca Icuiator” (1914). Vanntvar Bush devekgwd the first differed tialanalyrer(l9.T'o, Konrad Zum? d«Mgn< d a -computing machine (1936). Alan Turing deve- . l<*|M-d a mathetnalical digital computing machine (1936). Claude Shannon used Boolean algebra in computer circuits (1938). George St ibtte developed a refey computer at Hell Laboratories 0939) John ■ Aianasoff developed an dectronic computer (1942). COLOSSUS was used to ■' ■ decipher German code •' ?J during World Wft- ; J (1943} Howard loped the Aut ’ s Sequence Cont rolli fetor (1944). John and John Proper-Ec built ENIAC (Wife Assi» n fur CgajMi ? / ' ■ .* 'I;-?: time. design M gramming . . .-(■Ml developed a Colirge (l‘F)3) duccd the IBM — third gem ' - - flKtfuaes' ur --IB m ‘- nt l duced I-, „> tsß|||| firspop . Wi due 'Wgg||H . an-’- ' ' ' . first microcompuu,, *5 the PET 2(101 (1977), Radio Shack introduced the I RS-80 microcomputer (1977). lite Apple II microcomputer was announced (1977). VLSI circuits began to be used (1978) Magnetic* bubble memory was first used in commercial . machines (1978), Sharp Corporation tn Japan announced the first hand held computer (1979). Microcomputers are now widely used tn home# and schools (1982). John Napier devctojied logarithms and "Napier'* bones” (1617) William Oughtred developed lhe slide rule (1621). Blaise Pascal built the first adding machine I IGIZi Sir Thomas Morland developed an operational multiplier (Itifgi) Gottfried Uionita invented a four function calculator (1673). Joseph Jacquard diMgmd a pumhed tard textile loom (180!). Charles Thomas drvcloixd a calculator (1820), C liark-n Bab bage designed lhe "differ ence engine" (1822). Charles Babbage cbnci-ived the "analytical engine" (I Kill, h. 1) rarmaleedevctoped the first kcy tlnven calculator (1850) George Boule developed "Boolean algebra" (1854) Lord Ke) vih constructed a special purpose analog computer (18721 Frank Baldwin developed a prac that four prot o* calcula lor f1875j. William Burroughs inventtdan addingfeinting machine (ItitH). Dorr Felt tfevelopcd the "macaroni box" calculator (IMH7) Herman Hollerith developed a punched card machine (1887). James Power* invented a punched cJird machine GW) James Monroe infniduced the "Monroe calculator" (1914). Vannevar Bush developed the first differen tialanaiyzer(l9:i3} Konrad Zusr designed a r 'i