CBSE Class 11 Computer Science Computer Hardware MCQs

Question. The Device which converts instructions into the binary form that is understood by the computer and supply to the computer is known as___.
a) Memory
b) Output
c) Automatic
d) Input
e) None of these

Answer : D

Question. Windows 98 is ____________
a) Graphics System
b) None of these
c) Drawing system
d) Processing system
e) Operating System

Answer : E

Question. A common topology to any network is _ __ topology
a) Star
b) Bus
c) Tree
d) Ring
e) None of these

Answer : A

Question. The Decimal Number system has base ___ .
a) 8
b) 10
c) 16
d) 2
e) None of these

Answer : B

Question. Flip flop is also called as _____
a) Stable
b) Tri stable
c) bistable
d) not stable
e) None of these

Answer : C

Question. In negative logic, the logic state 1 corresponds to
a) lower voltage level
b) negative logic
c) zero voltage
d) more negative voltage
e) None of these

Answer : A

Question. An X-OR gate produces an output only when it's two inputs are
a) high
b) low
c) None of these
d) same
e) different

Answer : E

Question. The Octal Number system has base ______
a) 2
b) 10
c) 10
d) 8
e) None of these

Answer : D

Question. Which of the following is a way to access secondary memory?
a) Action method
b) Transfer method
c) Density method
d) None of these
e) Random access memory .

Answer : E

Question. Hexadecimal number system has ..... symbols.
a) 16
b) 12
c) 15
d) 10
e) None of these

Answer : A

Question. The First Generation of computer appeared during the period __ .
a) 1937 to 1949
b) 1964 to 1974
c) 1934 to 1944
d) 1945 to 1954
e) None of these

Answer : D

Question. The symbol is used to indicate a point at which decision has to be made __ .
a) decision
b) Connector
c) processing
d) Terminal
e) None of these

Answer : A

Question. Decimal n/mber system has ..... symljfls.
a) 15
b) 16
c) 10
d) 2
e) None of these

Answer : C

Question. To locate a data item for storage is
a) Field
b) Feed
c) Fetch
d) Database
e) None of these

Answer : C

Question. Which of the following will happen when data is entered into a memory location?
a) It will add to the content of the location
b) It will erase the previous content
c) It will change the address of the memory location
d) It will not be fruitful if there is already some data at the location
e) None of these

Answer : B

Question. Time during which a job is processed by the computer is
a) Delay times
b) Execution time
c) Real time
d) Down time
e) None of these

Answer : B

Question. Octal number system has ..... symbols.
a) 15
b) 16
c) 10
d) 8
e) None of these

Answer : D

Question. As compared to the secondary memory, the primary memory of a computer is
a) Large
b) Cheap
c) Slow
d) Fast
e) None of these

Answer : D

Question. The term gigabyte refers to
a) 1 024 megabytes
b) 1 024 kilobytes
c) 1024 bytes
d) 1 024 gigabyte
e) None of these

Answer : A

Question. Which of the following processors use RISC technology?
a) 486dx
b) 486SX
c) PowerPC
d) 6340
e) None of these

Answer : C

Question. The two major types of computer chips are
a) External memory chip
b) Primary memory chip
c) Microprocessor chip
d) None of these
e) Both 2 and 3

Answer : E

Question. A directly accessible appointment calendar is feature of a ... resident package
a) CPU
b) ALU
c) Buffer
d) Memory
e) None of these

Answer : D

Question. The binary equivalent of (64)10 , is :
a) 11000000
b) 1100000
c) 1100010 I
d) 1000000
e) None of these

Answer : D

Question. Binary number system has ..... symbols.
a) 15
b) 2
c) 16
d) 10
e) None qtthese

Answer : B

Question. The Hexadecimal Number system has base_.
a) 2
b) 10
c) None of these
d) 8
e) 16

Answer : E

Question. The two kinds of main memory are:
a) ROM and RAM
b) Random and sequential
c) Primary and secondary
d) All of above
e) None of these

Answer : A

Question. Which of the following memories allows simultaneous read and write operations?
a) ROM
b) EPROM
c) RAM
d) None of above
e) None of these

Answer : C

Question. A storage area used to store data to a compensate for the difference in speed at which the different units can handle data is
a) Buffer
b) Memory
c) Accumulator
d) Address
e) None of these

Answer : A