state the two main capabilities of computer
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Three Basic Capabilities of a Computer
A computer is a machine with an intricatenetwork of elec¬tronic circuits thatoperate switches or magnetize tiny metalcores.
The switches, like the cores, arecapable of being in one or two possiblestates, that is, on or off;
magnetized ordemagnetized.
The machine is capable ofstoring and manipulating numbers, letters, and characters (symbols).
The basic idea of a computer is that wecan make the ma¬chine do what we wantby inputting signals that turn certainswitches on and turn others off, ormagnetize or do not magne¬tize the cores.
The basic job of computers is processingof information.
For this reason computerscan be defined as devices which acceptinformation in the form of instructions, called a program, and characters, calleddata, perform mathematical and / orlogical operations on the information, andthen supply results of these operations.
The program, or part of it, which tells thecomput¬ers what to do and the data, which provide the information needed tosolve the problem, are kept inside thecomputer in a place called memory.
It is considered that computers have manyremarkable pow¬ers.
However mostcomputers, whether large or small, havethree basic capabilities.
First, computershave circuits for performing arithmetic op-erations, such as: addition, subtraction, division, multiplication andexponentiation.
Second, computers have a means ofcommunicating with the user.
After all, ifwe couldn't feed information in and getresults back, these machines wouldn't beof much use.
Some of the most commonmethods of inputting information are touse terminals, diskettes, disks andmagnetic tapes.
The computer's inputdevice (a disk drive or tape drive) reads theinformation into the computer.
Foroutputting information two commondevices used are: a printer, printing thenew information on paper, and a cathode-ray-tube display, which shows the resultson a TV-like screen.
Third, computers have circuits which canmake decisions.
The kinds of decisionswhich computer circuits can make are notof the type: "Who would win the warbetween two coun¬tries?"
or "Who is therichest person in the world?"
Unfortunately, the computer can onlydecide three things, namely: Is onenumber less than another?
Are twonumbers equal?
and, Is one numbergreater than another?
A computer can solve a series of problemsand make thousands of logical decisionswithout becoming tired.
It can find thesolution to a problem in a fraction of thetime it takes a human being to do the job.
A computer can replace people in dull, routine tasks, but it works according to theinstructions given to it.
There are timeswhen a computer seems to operate like amechanical 'brain', but its achievementsare limited by the minds of human beings.
A computer cannot do anything unless aperson tells it what to do and gives it thenecessary information;
but becauseelectric pulses can move at the speed oflight, a computer can carry out greatnumbers of arithmetic-logical operationsalmost instantaneously.
A person can dothe same, but in many cases that personwould be dead long before the job wasfinished.
A computer is a machine with an intricatenetwork of elec¬tronic circuits thatoperate switches or magnetize tiny metalcores.
The switches, like the cores, arecapable of being in one or two possiblestates, that is, on or off;
magnetized ordemagnetized.
The machine is capable ofstoring and manipulating numbers, letters, and characters (symbols).
The basic idea of a computer is that wecan make the ma¬chine do what we wantby inputting signals that turn certainswitches on and turn others off, ormagnetize or do not magne¬tize the cores.
The basic job of computers is processingof information.
For this reason computerscan be defined as devices which acceptinformation in the form of instructions, called a program, and characters, calleddata, perform mathematical and / orlogical operations on the information, andthen supply results of these operations.
The program, or part of it, which tells thecomput¬ers what to do and the data, which provide the information needed tosolve the problem, are kept inside thecomputer in a place called memory.
It is considered that computers have manyremarkable pow¬ers.
However mostcomputers, whether large or small, havethree basic capabilities.
First, computershave circuits for performing arithmetic op-erations, such as: addition, subtraction, division, multiplication andexponentiation.
Second, computers have a means ofcommunicating with the user.
After all, ifwe couldn't feed information in and getresults back, these machines wouldn't beof much use.
Some of the most commonmethods of inputting information are touse terminals, diskettes, disks andmagnetic tapes.
The computer's inputdevice (a disk drive or tape drive) reads theinformation into the computer.
Foroutputting information two commondevices used are: a printer, printing thenew information on paper, and a cathode-ray-tube display, which shows the resultson a TV-like screen.
Third, computers have circuits which canmake decisions.
The kinds of decisionswhich computer circuits can make are notof the type: "Who would win the warbetween two coun¬tries?"
or "Who is therichest person in the world?"
Unfortunately, the computer can onlydecide three things, namely: Is onenumber less than another?
Are twonumbers equal?
and, Is one numbergreater than another?
A computer can solve a series of problemsand make thousands of logical decisionswithout becoming tired.
It can find thesolution to a problem in a fraction of thetime it takes a human being to do the job.
A computer can replace people in dull, routine tasks, but it works according to theinstructions given to it.
There are timeswhen a computer seems to operate like amechanical 'brain', but its achievementsare limited by the minds of human beings.
A computer cannot do anything unless aperson tells it what to do and gives it thenecessary information;
but becauseelectric pulses can move at the speed oflight, a computer can carry out greatnumbers of arithmetic-logical operationsalmost instantaneously.
A person can dothe same, but in many cases that personwould be dead long before the job wasfinished.
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COMPUTER IS VERY USEFUL MACHINE AND IT'S TWO CAPABILITIES ARE-;
IT'S WORKING CAPACITY IS MORE RATHER THAN MAN
IT SOLVES ALL CALCULATION WITH ANY MISTAKE
IT STORES MANY DOCUMENTS FOR A LONG PERIOD OF TIME....
IT'S WORKING CAPACITY IS MORE RATHER THAN MAN
IT SOLVES ALL CALCULATION WITH ANY MISTAKE
IT STORES MANY DOCUMENTS FOR A LONG PERIOD OF TIME....
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