4/17/2019

Chapter 1 Introduction to Computer

 Introduction to computer,
Chapter 1 Introduction to Computer
 1. Match the following columns:
 Nibble ---Collection of four bit 
Speed ---- Has the capacity to do several tasks within a second
 System unit -------- Computer part
Communication ----------- Exchanging information throughout the word.

2. State whether the following statements are true or false:
a) A Computer cannot store the data and information for future use. False
b) To perform any task in the computer, we have to instruct the computer what to do. True
c) a computer takes lots of time to do complex calculation. False
d) 1 millisecond is 1000 part of second. True

3. choose the correct answer from the given option.
a) From which language the word computer is derived? Latin
b) Where are computers used? Both i and ii
c) The speed of computer is measured in..... Hertz
d) Which of the following is not part of computer? Power Plug

4. answer the following question
a) define computer with its Proper meaning.
Ans: The word "computer" is derived from the Latin word "COMPUTARE" which means to calculate. Computer is an electronic machine, that takes raw data, process them according to the set of instruction and gives result.
b) what are the four basic parts of computer?
Ans: Monitor, system unit, keyboard and mouse are the four basic parts of computer.
 c) List any four features of computer?
Ans: High speed, Accuracy, Diligence and Versatility are the four features of computer.
d) Define the term garbage in garbage out.
Ans: If the data and instruction given to the computer are correct, it will always produce accurate result but sometimes it also produce undesirable result which is due to wrong input it is known as garbage in garbage out.
e) List any five places where computers are mainly used.
Ans: Application fields of computer are as follows:
i) Home           ii) Education        iii) Medicine and Health      iv) Entertainment        v) Business
f) how are computer used in education?
Ans: Education is one of the major application field of computer. Computer are used in schools and colleges for teaching and learning purpose. Student can search books, can read books and magazines. Open universities are launching their distance learning programs through the Computer Based Training (CBT). 
g) write any four limitation of computer
Ans: The main limitations of computers are as follows:
i) Computer has no intelligence of its own.
ii) Computer fully depends upon human beings.
iii)  Computer cannot learn from the past experience.
iv) Computer needs power backup (electricity) to work.

5. write the full form of the following.
CPU >> Central Processing Unit
MHz >> Megahertz
CBT >> Computer Based Training
CAI >> Computer Aided Instruction
ICU >> Intensive Care Unit
POS >> Point of Sale
GIGO > Garbage In Garbage Out

6.write suitable technical term for the following statement
a) The continuously working capacity of computer without losing its speed and accuracy. Diligent
b) The computer terminology in which output is determined according to the input. GIGO
c) In hospital that helps to maintain Heartbeat of the patient. Pacemakers
 d) The collection of 8 bits or two nibble. 1 byte