DDeeddiiccaatteedd CCoommppuutteerr SSyysstteemmssGGeenneerraallppuurrppoosseevvssDDeeddiiccaatteeddccoommppuutteerrssGeneral purpose computer can perform different types of tasks depending on which ID: 885988
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1 K Aquilina D D e e d d i i c c a a t t
K Aquilina D D e e d d i i c c a a t t e e d d C C o o m m p p u u t t e e r r S S y y s s t t e e m m s s G G e e n n e e r r a a l l p p u u r r p p o o s s e e v v s s D D e e d d i i c c a a t t e e d d c c o o m m p p u u t t e e r r s s General purpose computer can perform different types of tasks (depending on which programs are installed). the same computer can operate over a few hours as a typewriter, desktop publishing studio, sound editor, video editor, accounts tracker, e-mail sender, Internet browser, etc. A personal computer is a good example of general purpose computers. Dedicated (special purpose) computer is built to handle a specific task, it can perform that task only and no other. Thus we can find a variety of dedicated computers performing a wide variety of tasks For example an ATM, digital camera, mobile phone, washing machine, video games, autopilots etc. all have an embedded computer which controls them. Special purpose computers have the same basic components of input, output, processing and storage as general purpose computers. E E m m b b e e d d d d e e d d a a n n d d p p r r o o c c e e s s s s c c o o n n t t r r o o l l s s y y s s t t e e m m s s Embedded systems controlling common appliances are one form of dedicated computers. An embedded system is any appliances that contains a microprocessor, which is pre-programmed to perform a dedicated task. Examples of embedded systems are washing machines, cookers, microwave ovens, video recorders, laser printers, and calculators. A process control system - The automatic monitoring and control of an industrial activities by a computer, programmed to respond to the feedback signals from sensors. S S p p e e c c i i a a l l i i s s e e d d I I / / O O d d e e v v i i c c e e s s ( ( s s e e n n s s o o r r s s , , b b u u t t t t o o n n s s L L C C D D ) ) Input and Output peripherals need not be keyboards and screens but can be simpleas a button or sensor, an LCD or even an LED. S S o o f f t t w w a a r r e e f f o o r r d d e e d d i i c c a a t t e e d d c c o o m m p p u u t t e e r r s s y y s s t t e e m m s s Normally programs which are run by dedicated computer systems are fixed (hard-wired)permanently into memory when they are built so that they cannot be altered. The computer system is an Electronic Information Processing Machine .