types of computers Flashcards
types of computers
analog computer digital computer 1. supercomputer 2. mainframe computer 3. mini computer 4. microcomputer
analog computer
examples
the special-purpose computer that measures physical value(i.e. continuous flow of data)like the voltage, current, temperature, pressure.
speedometer, thermometer, seismograph, heartbeat measurement, blood pressure pulse.
Plesley
supercomputer
speed
uses
examples
fastest and most expensive computer
high processing speed compared to other computers
uses:-weather forecasting, aircraft and space engineering, scientific research.
cray-3, cyber 205, PARAM
Mainframe computer word length size examples uses
word length-64 bits
size- 1000 sq. ft.
CDC 6600, VAX 8000, IBMs ES000
uses;-insurance companies, banking, airlines, air traffic control
minicomputer
smaller, less expensive and less powerful than supercomputer and mainframe computer
more than 50 terminals
size-100 sq. ft.
PDP 11, IBM 8000 series, VAX 7500
Uses:-university, scientific research, industries
Microcomputer
small-sized personal computer designed for individual use having microprocessor inside it.
examples:- IBM PCs, apple/macintosh, dell
USES;- Entertainment, business, schools, offices, university
Hybrid computer
a special purpose computer having the capabilities of both analog and a digital computer is a hybrid computer
example;- ECG, echo, ct-scan machine
USES:- hospitals, industries, aeroplanes, ships
mobile computing advantages
portable social interactivity context-sensitivity connectivity ability commonly used quick service easy and quick enhancement
disadvantages
insufficient bandwidth
security standards
power consumptions
human interface with the device