Q1).Which of the following helps us to take decisions?
(a) data (b) information (c) knowledge (d) intelligence
Ans: Information
Q2).Manipulation of data to get information is known as _______.
Ans: Data Processing
Q3).Arrange the following in proper order:
Process, Output, Storage, Distribution, Data Capture, Input
Ans:
Q4).Pick the odd one out and give reason:
(a) Calculation (b) Storage (c) Comparison (d) Categorization
Ans: Storage: All other operations are carried out as part of processing
Q5).Why do we store information?
Ans: In many cases, the amount of data given to the computers will be large. Besides the data entry may not be completed in a single session or a day. So the data input at different times should be stored.
Q6).Information may act as data. State True or False.
Ans: True
Q7).Which is the final stage in data processing?
Ans:
Q8).What is a source document?
Ans: The Performa , also called source document , is so designed that all relevant data to be record in proper order and format.
Q9).Who proposed the model of modern computers?
Ans: John Von Neumann
Q10).Name the components of CPU.
Ans: Control Unit(CU), Arithmetic Logic Unit(ALU),Registers
Q11).Which of the functional units of the computer is not directly involved in data processing?
Ans: Control Unit
Q12).What is meant by ‘execution of an instruction’?
Ans: Processing the data
Q13).Which part of a computer can be compared to the human brain?
Ans: Control Processing Unit(CPU)
Q14).Number of symbols used in a number system is called
Ans: base / radix.
Q15).Pick invalid numbers from the following
i) (10101)8,ii) (123)4,iii) (768)8 iv) (ABC)16
Ans: ii & iii
Q16).Define the term ‘bit’.
Each digit of a binary number is called bit.  A bit  stands for binary digit.
Q17).Find MSD in the decimal number 7854.25.
Ans:7
Q18).The base of hexadecimal number system is
Ans:16