Glossary
Bit
A bit is a bi na ry di git (0 or 1). It is the smal lest unit used in data Ser ves to
con trol data in put and out put in a data pro ces sing sys tem or bet ween a
com pu ter and the con nec ted pe ri phe rals.
CPU
Ab bre via ti on of cen tral pro ces sing unit. It in clu des the main com po nents of
a data pro ces sing sys tem. The CPU mo ni tors all ope ra tions and pro vi des
data and pro grams. It com pri ses the con trol unit for in put and out put, the
com pu ter and the main me mo ry, di vi ded into ROM and im me di ate ac cess
sto ra ge.
In ter fa ce
De sig na tes the tran si ti on point bet ween dif fe rent hard wa re units and soft wa -
re units or bet ween hard wa re and soft wa re units of com pu ters or their pe ri -
phe rals.
JEIDA
Ab bre via ti on of Ja pan Elec tro nic In du stry De ve lop ment As so cia ti on. In du -
stry stan dard for me mo ry cards.
Ope ra ting sys tem
Re fers to all pro grams that are a com po nent of a com pu ter and are re qui red
for ope ra ting the sys tem and exe cu ting ap pli ca ti on pro grams.
PCMCIA
Ab bre via ti on for Per so nal Com pu ter Me mo ry Card In ter na tio nal As so cia ti on.
In du stry stan dard for me mo ry cards.
Plug and Play (PnP)
PnP me ans the au to ma tic re co gni ti on of hard wa re com po nents by the sys -
tem. Thus the in stal la ti on, in te gra ti on and con fi gu ra ti on of new com po nents
is made sub stan ti al ly ea sier.
Pe ri phe rals
De vi ces ser ving as an in put/out put de vi ce or sto ra ge for a com pu ter. This
in clu des, for ex am ple, do cu ment rea ders, key bo ards, prin ters and disk sto -
ra ge.
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GLOSSARY
