● The __(72)__ is a collection of computers connected together by phone lines that allows for the global sharing information.

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• 1● __(71)__ is the sending and receiving of the message by computer.It is a fast,low-cost way of communicating worldwide.

  A.LAN

  B.Post office

  C.E-Mail

  D.Interface

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• 2● __(70)__ is not a linear structure

  A.Graph

  B.Queue

  C.Stack

  D.1-dimension array

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• 3● __(69)__ is permanently stored in the computer and provides a link between the hardware and other programs that run on the PC.

  A.Interface

  B.Operating system

  C.Internet

  D.Application software

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• 4● A __(68)__ copies a photograph,drawing or page of text into the computer.

  A.scanner

  B.printer

  C.display

  D.keyboard

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• 5● The __(67)__ controls the cursor or pointer on the screen and allows the user to access commands by pointing and clicking.

  A.graphics

  B.printer

  C.program

  D.mouse

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• 6● __(73)__ are web sites that search the web for occurrences of a specified word or phrase.

  A.Search engines

  B.WWW

  C.Internet

  D.Java

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• 7● Files can be lost or destroyed accidentally.Keep __(74)__copies of all data on removable storage medi

  A.A.backup

  B.back

  C.black

  D.backdown

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• 8● In __(75)__ programming,the user determines the sequence of instructions to be executed,not programmer.

  A.top-down

  B.structure

  C.data-driven

  D.event-driven

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