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1.Enumerate atleast five.

1.1Different types of computers.

(Ans.)1.1.1 Desktop model

A computer designed to fit comfortably on top of a desk, typically with themonitor sitting on top of the

computer. Desktop model computers are broad and low.

1.1. !ubnotebook computer

A portable computer that is slightly lighter and smaller than a full"si#ed notebookcomputer. $ypically,

subnotebook computers have a smaller keyboard and screen, but are otherwisee%uivalent to notebookcomputers.

1.1.& 'aptop computer

A small, portable computer "" small enough that it can sit on your lap. owadays,laptop computers are more

fre%uently called notebook computers.

1.1. otebook computer

An e*tremely lightweight personal computer. otebook computers typicallyweigh less than + pounds andare small enough to fit easily in a briefcase.

1.1. -almtop

A small computer that literally fits in your palm. ompared to full"si#ecomputers, palmtops are severely

limited, but they are practical for certain functions such as phone books andcalendars. -almtops that use a

pen rather than a keyboard for input are often called hand"held computers or-DAs.

1.1Different uses of computers.

(Ans.)1..1 ED/A$0

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2etting the right kind of information is a ma3or challenge as isgetting information to make sense. ollege students spend anaverage of "+ hours a week on the internet.4esearch showsthat computers can significantly enhance performance in

learning. !tudents e*posed to the internet say they think theweb has helped them improve the %uality of their academicresearch and of their written work. ne revolution in education

is the advent of distance learning. $his offers a variety ofinternet and video"based online courses.

1.. !0EE.!cientists have long been users of it. A new adventure amongscientists is the idea of a ollaboratory an internet basedcollaborative laboratory, in which researchers all over the world

can work easily together even at a distance. An e*ample isspace physics where space physicists are allowed to bandtogether to measure the earth ionosphere from instruments onfour parts of the world.

1.1.11..& 4ecreation and Entertainment.ur entertainment and pleasure"time have also been affected by

computeri#ation. 5or e*ample6

i)0n movies, computer generated graphics give freedom to designers so that special effects and even imaginarycharacters can play a part in making movies, videos, and commercials.

ii)0n sports, computers compile statistics, sell tickets, create training programs and diets for athletes, and suggestgame plan strategies based on the competitor past performance.

iii)0n restaurants, almost every one has eaten food where the clerk enters an order by indicating choices on a ratherunusual looking cash register7 the device directly enters the actual data into a computer, and calculates the costand then prints a receipt.

1.. 2overnment.8arious departments of the 2overnment use computer for theirplanning, control and law enforcement activities. $o name a few$raffic, $ourism, 0nformation 9 :roadcasting, Education,

Aviation and many others.

1.. !coreboard.;hile some scoreboards are manually updated, mostprofessional sports venues have very modern scoreboards thatare programmed to update statistics and informationimmediately after the information is entered into the computer.

1.1

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(Ans.)1.1.11.&.1 apanese electronics manufacturing company which doesnot only build computers and notebooks but its mobile phones are also verypopular among people.

1.&.& 5/>0$!/$his is a well known >apanese electronics manufacturing company which does

not only build computers and notebooks but its mobile phones are also verypopular among people.

1.1.11.&. 0: