Major Characteristics of Computer System
Some important characteristics of the computer are as follow:
Automatic:
- Computers are automatic machines because it works by itself without human intervention.
- Once it started on a job they carry on until the job is finished.
- Computer cannot start themselves.
- They can works from the instructions which are stored inside the system inthe form of programs which specify how a particular job is to be done.
Accuracy:
- The accuracy of a computer is very high.
- The degree of accuracy of a particular computer depends upon its design.
- Errors can occur by the computer. But these are due to human weakness, due to incorrect data, but not due to the technological weakness.
Speed:
- Computer is a very fact device. It can perform the amount of work in fewseconds for which a human can take a entire year.
- While talking about computer speed we do not talk in terms of seconds and milliseconds but in microseconds.
- A powerful computer is capable of performing several billion (109) simplearithmetic operations per second.
Diligence:
- Unlike human beings, a computer is free from monotony, tiredness & lack of concentration.
- It can continuously work for hours without creating any error & without grumbling.
- If you give ten million calculations to performed, it will perform with exactly the same accuracy & speed as the first one.
Versatility:
- It is one of the most wonderful features about the computer.
- One moment it is preparing the results of a particular examination, the next moment it is busy with preparing electricity bills and in between it may be helping an office secretary to trace an important letter in seconds.
Power of remembering:
- Computer can store and recall any amount of data because of its high storage capacity of its storage devices.
- Every piece of information can be retained as long as desired by the user and can be recalled as and when required.
- Even after several years, if the information recalled, it will be as accurate as on the day when it was filled to the computers.
No I.Q.
- A computer is not a magical device; it processes no intelligence of its own.
- Its I.Q. is zero.
- It has to be told what to do & in what sequence.
- It cannot take its own decision.
No Fallings:
- A Computer has no feelings because they are machines.
- Based on our feelings, task, knowledge and experience we often make certain judgments in our day today life.
- But Computer goes exactly the way which we have given the instructions.
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Basic Computer Questions
Q : The main system board of the computer is called ____.
(A) Motherboard
(B) Processor
(C) Microchip
(D) None of these
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Q : Which of the following system components is the brain of a computer?
(A) Circuit board
(B) CPU
(C) Memory
(D) Network card
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Q : What is the built-in permanent memory in a computer called?
(A) RAM
(B) ROM
(C) CPU
(D) CD-ROM
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Q : Which of the following is the full form of NTFS?
(A) New Tree File system
(B) New Technology file system
(C) New Table file system
(D) Both B and C
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Q : Which of the following is not a hardware processing chip ?
(A) Processing chip
(B) printer
(C) mouse
(D) Java
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Q : The monitor of a computer is-
(A) storage device
(B) processing device
(C) input device
(D) output device
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Q : Which protocol does Ping use?
(A) TCP
(B) ARP
(C) ICMP
(D) BootP
(E) None of these
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Q : If you wish to extend the length of the network without having the signal degrade, you would use a ___.
(A) Gateway
(B) Router
(C) Modem
(D) Repeater
(E) Resonator
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Q : A series of instructions that tells a computer what to do and how to do it is called a ______.
(A) program
(B) command
(C) user response
(D) processor
(E) None of these
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Q : Verification of a login name and password is known as_____.
(A) Configuration
(B) Accessibility
(C) Authentication
(D) logging in
(E) None of these
Answer ⇒ ??