Peripherals...............
Peripherical devices are those devices that may not be connected to the computer .But a computer will work without any peripheral devices too. They are used to only when their need arises.
a. Printer:- when we buy a printer, we have to consider three things:-speed, print quality and Maintence cost.Don't Matrix printers are used for printing huge amount of textual data because of their poor print quality.Inkjet or bubble jet printers can print in colour and monochrome both and they give good print quality.Laser printers give the best print quality at the higst speed but they are expensive.While buying a printe, we should first check the sample print out page
b.MODEM:- MODEM stands for MOdulation.If we want to have internet connection in our computer, then we need a modem.Modems are connected to a telephone through which data travels. Modems are of two types:- Internal modem and External modem.While buying a modem, we should also find out the speed of the modem. Higher the speed of the modem,more bits of information can be sent through the telephone line i.e. faster internet connection and surfing.
Peripherical devices are those devices that may not be connected to the computer .But a computer will work without any peripheral devices too. They are used to only when their need arises.
a. Printer:- when we buy a printer, we have to consider three things:-speed, print quality and Maintence cost.Don't Matrix printers are used for printing huge amount of textual data because of their poor print quality.Inkjet or bubble jet printers can print in colour and monochrome both and they give good print quality.Laser printers give the best print quality at the higst speed but they are expensive.While buying a printe, we should first check the sample print out page
b.MODEM:- MODEM stands for MOdulation.If we want to have internet connection in our computer, then we need a modem.Modems are connected to a telephone through which data travels. Modems are of two types:- Internal modem and External modem.While buying a modem, we should also find out the speed of the modem. Higher the speed of the modem,more bits of information can be sent through the telephone line i.e. faster internet connection and surfing.
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