1)what is input hardware? what are the examples of input hardware? 2)what is processing hardware? what are the basic types of memory used in a PC? 3)what is a storage hardware? what is CD-ROM used for? Can a user record his or her data on a CD? What king

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of storage hardware can contain more information: CD-ROM, RAM or ROM? 4)what is modem used for? Can a PC iser communicate with other people withoit a modem?