computer hardware for dummies pdf

(D) Optical Disc Drive An optical disc drive (ODD) is a disk drive that uses laser light or electromagnetic waves for reading or writing data to or from optical discs (normally CD-ROM).
Parts that were once hand made at a cost of thousands of man-hours are now mass produced for a fraction of a rupee.
(C) Monitors Monitors, commonly called as Visual Display Unit (VDU are the main output device of a computer.
The term static is derived from the fact that it does not need to be dll fixer 2.7 full version refreshed like dram.
It can be erased and reprogrammed about ten thousand times.The best use of tape storage is for data that you do not use very often.CPU (Central Processing Unit).Some exams like SBI PO, SBI Clerk, ibps PO, ibps Clerk, SSC CGL, war of the world games Railways RRB etc.If a peripheral device is disconnected, the computer will still be able to work; only functions performed by this peripheral device will not be available.Software is a set of electronic instructions consisting of complex codes (Programs) that make the computer perform tasks.Volatile means that the data stored in memory is lost when we switch off the computer or if there is a power failure.Non-Impact Printers: Non-impact printers print the characters without using ribbon.(E) ussb flash drive, also commonly known as a USB drive, USB stick and a variety of other names.The sharpness of the image depends upon the number of pixels.



Eeprom (Electrically Erasable and Programmable Read Only windows xp service pack 3 full version bootable Memory The eeprom is programmed and erased electrically.
However, the Control Unit doesnt process any data.
(D) Printer Printer is an output device, which is used to print information on paper.
It forms images from tiny dots, called pixels that are arranged in a rectangular form.It can be used to create presentation-charts, graphics, tables and high quality technical drawings.Impact Printers: The impact printers print the characters by striking them on the ribbon which is then pressed on the paper.Some of them are described below.Computers can read CD-ROMs, but cannot write to CD-ROMs which are not writable or erasable.