1theinternethasahistoryof()years.2scientistsetupanewnetworksystemto().
WeareallbusytalkingaboutandusingtheInternet,buthowmanyofusknowthehistoryoftheInternet?
ManypeoplearesurprisedwhentheyfindthattheInternetwassetupinthe1960s.Atthattime,computerswerelargeandexpensive.Computernetworksdidn'tworkwell.Ifonecomputerinthenetworkbrokedown,thewholenetworkstopped.Soanewnetworksystemhadtobesetup.Itshouldbegoodenoughtobeusedbymanydifferentcomputers.Ifpartofthenetworkwasnotworking,informationcouldbesentthroughanotherpart.Inthiswaycomputernetworksystemcouldkeeponworkingallthetime.
AtfirsttheInternetwasonlyusedbythegovernment,butintheearly1970s,universities,hospitalsandbankswereallowedtouseittoo.However,computerswerestillveryexpensiveandtheInternetwasdifficulttouse.Bythestartofthe1990s,computershadbecomecheaperandeasiertouse.Scientistshadalsodevelopedsoftwarethatmade"surfing"theInternetmoreconvenient.
Todayitiseasytogeton-lineanditissaidthatmillionsofpeopleusetheInterneteveryday.Sendinge-mailsismoreandmorepopularamongstudents.
TheInternethasnowbecomeoneofthemostimportantpartsofpeople'slife
2提给了三个选项:A:makethecomputercheaper
B:makethesystemworkwell
c:makethecomputergowell