Classification of Computer By Data Processed

The computers are divided mainly three types on the based on data processed:

1. Analog computers
2. Digital computers
3. Hybrid computers

1 . Analog computers:

• In Analog Computers, data is represented as continuously varying voltage and operate essentially by measuring rather counting.
• As the data is continuously variable, the results obtained are estimated and not exactly repeatable.
• It can able to perform multiple tasks simultaneously and also capable to work effectively with the irrational number. E.g. 1/8 = 0.125 and 1/6=0.1666
• Voltage, temperature and pressure are measured using analog devices like voltmeters, thermometers and barometers.

2. Digital Computers

• The digit computer is a machine based on digital technology which represents information by numerical digit.
• In Digital Computers data is represented as discrete units of electrical pulses. Thedata is measured in quantities represented as either the ‘on’ or ‘off’ state.
• Therefore, the results obtained from a digital computer are accurate.
• Virtually all of today’s computers are based on digital computers.

3. Hybrid Computers

• It combines the good features of both analog & digital computers.
• It has a speed of analog computer & accuracy of digital computer.
• Hybrid Computers accept data in analog form and present output also in digitally.
• The data however is processed digitally.
• Therefore, hybrid computers require analog-to-digital and digital-to-analog converters for output.

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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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A
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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Answer ⇒ { B }

B
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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Answer ⇒ { B }

B
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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Answer ⇒ { B }

B
Q : Which of the following is not a hardware processing chip ?
(A) Processing chip
(B) printer
(C) mouse
(D) Java

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Answer ⇒ { B }

D
Q : The monitor of a computer is-
(A) storage device
(B) processing device
(C) input device
(D) output device

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Answer ⇒ { D }

D
Q : Which protocol does Ping use?
(A) TCP
(B) ARP
(C) ICMP
(D) BootP
(E) None of these

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Answer ⇒ { C }

C
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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Answer ⇒ { D }

D
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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Answer ⇒ { A }

A
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 ⇒ ??