suMMary cSc134-CHapter 1(Introduction of Computer)

chapter 1 tell us about basic of computer...computer is an electronic device that operate with its own memory.computer able 2 process information or data.there is someADVANTAGAES using computer:speed,reliability,consistency,storage &communications.however,using computer also have DISADVANTAGES:violation of privacy,public safety,impact on labour force,health risks & impact on environment.
computer are able 2 process data & instruction.this process known as information processing data which involved INPUT,PROCESS,OUTPUT,STORAGE & COMMUNICATION processes.all the process have their own device.INPUT device is hardware used 2 enter data & instruction,OUTPUT device is hardware that conveys information 2 one/more people such as monitor,printer & speaker.while,processor:a case that contain electronic components of computers known as system unit or CPU.
CPU is one of motherboard main components beside the memory.CPU interprets & carries out basic instructions to operates computer.while,memory consists electronics components that store instructions waiting 2 be executed & data needed by those instructions.Storage which holds data,instructions & informations in future used can be divided into 2:storage media(such as:hard disks,CD,DVD)& storage device(such as:card reader).
computer also act as communications device with the existence of network & Internet.NETWORK is a collection of computer & devices that connected 2gether while INTERNET is worldwide collection of network that connect millions of business,government agencies,educational institutions & individuals.
computer software consists of series of instructions that tells the computers what 2 do & how 2 do it software also known as programs..system software divide into 2:Operating software & Utility programs.
computer used in web access,communications,entertainment & etc.
the categories of computers are:personal computer,mobile computers,game consoles,serves,mainframes,supercomputers & embedded computers...
computer are apply in various field such as:education,business,medical,tourism & etc....