Class 5 Computer Solution Chapter 1 Basic of Computer
1. Fill in the blanks:-
a) CPU controls the processing of data or information.
b) Memory unit stores the data and information.
c) Input, Processing and Output are the three basic stages of working of a computer.
d) ENIAC stands for Electronic Numerical Integrator and Calculator .
2. Match the following:-
a) Abacus c) Blaise Pascal
b) Napier Bones e) Joseph J. Jacquard jackward
c) Adding Machine d) Charles Babbage
d) Difference Engine b) John Napier
e) Punched Card a) Egyptians
3. Expand these abbreviations:-
a) CPU- Central Processing Unit.
b) ALU- Arithmetic Logic Unit.
c) CU- Control Unit.
d) MIPS- Million Instruction Per Second.
4. Mention about the first:-
a) Calculating Device :- The first calculating device was Abacus.
b) Electronic Computer :- The first electronic computer was ENIAC.
c) Programmer :- The first programmer was Lady Ada Lovelace.
d) Punched Cards :- The First Punched Cards were used by Jacquard Loom.
5. Define the following:-
a) Input :- Input means feeding of raw data into the computer. We can give information (data) through input devices like- keyboard, mouse, scanner etc.
b) Process :- Process is the series of activities performed inside the CPU.
c) Output:- It is information or result that a user finally received from the computer through the output devices after processing of row data. Some of the important output devices are Monitor, Printer, Plotter etc.
6) What is a computer?
Ans.- A computer is called as an electronic device that converts raw data into meaningful information. It has many unique features because of which it is being applied in many fields to generate different types of solution.
7) What are the different characteristics of a computer?
Ans.- The different characteristics of a computer are-
a) Speed b) Diligence c) Versatility d) Accuracy e) High storage capacity f) Secrecy g) Calculative.
8) Who is known as the father of computer and why?
Ans.- Charles Babbage is known as the father of computer because he designed the analytical engine which is said to be the first automatic general purpose digital computing device. He worked more to develop the computer.
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