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q show layout 84-key keyboardspc 83-key was the earliest keyboard provided by ibm with its first personal computers pc this had 83 keys afterwards
qwerty-based keyboardsin addition the standard alphabet keys having qwerty arrangement a computer keyboard also comprises the control alt del ctrl
q qwerty - keyboard layout a keyboard layout is arrangement of keys across the keyboard there is one keyboard layout which anybody who has worked on
q what is keyboard layouta keyboard layout is arrangement of keys across the keyboard there is one keyboard layout which anybody who has worked on a
a full size keyboard has distance between centres of keycaps keys like 19mm 075inthe keycaps have a top of nearly 05in 125in that is shaped as a sort
q explain basic function of keyboardkeyboard is the major input device for your computer it is an accurate and fast device the multiple character
q describe about digital audio tapethe most proper tape for backing up data from a disk today is digital audio tape dat it employs a 4mm tape covered
q what is tape backupmagnetic tapes are used these days in computers for the below purposes backing up data stored in disks it is essential to
q diffrence between cd-r vs cd rwa cd-r disc looks same as a cd though all pressed cds are silver cd-r discs are gold or silver on their label side
optical disk becomes an attractive alternative for backing up information from hard disk drives and employs large text audio and video data advent of
q explain disk cartridges disk cartridges removable disk cartridges are an option to hard disk units as a form of secondary storage cartridge
q what is cartridge drivecartridge drive a cartridge is a protective covering or case which is used to hold a magnetic tape disk a printer ribbon or
q explain working of jaz drivejaz drive jaz drive is a well-liked drive with 2gb and unleashes creativity of professionals in graphic design and
q explain about zip drivezip drive loads of files volumes of data have definitely increased onus on todays computer user and protection of this data
q show the main drawback of cav diskthe main drawback of cav disk is that a lot of storage space is wasted because longer outer tracks are storing
q benefit of digital versatile disk read only memorythe main benefit of having cav is that individual blocks of data can be accessed at semi-random
dvd-rom employs same principle as a cd-rom for reading and writing however a smaller wavelength laser beam is used total capacity of dvd-rom is 85gb
q main drawbacks of cd-romsthe main drawbacks of cd-roms are it is read only thus cant be updated access time is longer than that of magnetic disks
the main benefits of cd-roms are these are removable disks thus they are suitable for archival storage mass replication is cheap and fast large
q what is compact disk read only memorythis technology has evolved out of entertainment electronics market where cassette tapes and long playing
a disk drive with removable disks is known as removable drive a removable disk can be replaced by other similar disk on same or different computer so
q what is enhanced idethe principle behind eide interface is the same as in ide interface however this drive has capacities varying from 102gb to
q versions of small computer systems interface scsi-1 calls for a cable with 8 data wires plus one for parity scsi-2 allows use of multiple cables
q explain integrated disk electronics deviceside devices are associated to pc motherboard by a 34-wire ribbon cable common drive used today for
q what is hard drive interfacesecondary storage devices need a controller to proceed as an intermediary between device and rest of the computer