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the concept of mouse was designed by douglas c engelbart of stanford research institute and first mouse was designed by xerox corporation mouse
q describe ergonomic keyboardsergonomics is the study of environment conditions as well as efficiency of workers ergonomics proposes that keyboard
ps2 connector ps2 keyboardsthese were introduced with ibms ps2 computers and therefore are known as ps2 connectors they have 6-pins but actually
5-pin din connectorit is the connector of conventional keyboard which have 5 pins 2 in 2 out and one ground pin used for transfer and
q standards for scan codes there are 3 standards for scan codes mode1 83-key keyboard pc pc-xt and mode2 84-key at keyboard and mode3 101-key
q what do you understand by scan codesa scan code is a code produced by a microprocessor in keyboard when a key is pressed and is unique to key
q illustrate working of rubber dome keyboardsrubber dome in rubber dome keyboards both positioning and contact are controlled by a puckered sheet of
contact-based keyboards employ switches directly though they have a comparatively shorter life they are the most preferred type these days because of
q what is capacitor-based keyboardsthese keyboards are based on the idea of capacitance a simple capacitor comprises a pair of conductive plates
q what do you mean by keyboard touchwhen employing a keyboard the most important factor is the feel of keyboard it implies that how typing feels on
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