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1. History of computer
modernelectronicdigitalcomputersare the resultof alongseriesof
developments,whichstartedsome 5000 yearsago withthe abacus.
The firstmechanical addingdevice wasdevelopedin1642 by the
French scientistphilosopher,Pascal.His“ARITHMETIC MACHINE” wasfollowedbythe
steppedreckonedinventedbyLeibnitzin1671, whichwas capable of alsodoing
multiplication,divisionandthe evaluationof square rootbya seriessteepedadditions,
not unlike the methodsdigitalcomputers.
What is an essay :
The word “essay”meansattempt,yourattemptto write ina single prose piece
your ownideas,impressions,thoughtsfeelingsoropinionsonanygivensubject.
How to write an essay
 It isalwaysa good practice to jobdownthe ideas.
 Once you have an outline,decide onthe three mainaspectsof youressay.
 The beginning
 The main body
 The end
The