CBSE Class 12 Computer Science Computer Hardware MCQs

Question. A disk storage medium in the form of an assembly contain-ing a single rigid magnetic disk permanently is
a) Fixed disk
b) Card reader
c) Card punch
d) Disk cartridge
e) None of these

Answer : D

Question. A type of core store that has a lower access time than the de-vices used for working store in the same processor is known as
a) Core memory
b) Address register
c) Fast core
d) Buffer
e) None of these

Answer : B

Question. The use of spooler programs and/or .........Hardware allows personal computer operators to do the processing work at the same time a printing operation is in progress
a) Registered mails .
b) Buffer
c) CPU
d) Memory
e) None of these

Answer : B

Question. A memory that is capable of determining whether a given da-tum is contained in one of its address is
a) ROM
b) CAM
c) PROM
d) RAM
e) None of these

Answer : B

Question. The person contributing the idea of the stored program was
a) Daniel Thomas
b) Charles Babbage
c) Howard Aiken
d) John Neumann
e) Dennis Ritenie.

Answer : D

Question. Which of the following refers to the memory in your computer?
a) USB
b) DSL
c) RAM
d) LAN
e) CPU

Answer : C

Question. A plastic card similar to a credit card but having some memory and a microprocessor embedded within it is
a) Chip card
b) Card punch
c) Magnetic tape
d) None of these
e) Punched paper tape

Answer : E

Question. A __ represents approximately one billion memory location.
a) kilobyte
b) gigabyte
c) megabyte
d) terabyte
e) None of these

Answer : B

Question. Which chips using special ex-ternal equipment can reprogram
a) PROM
b) ROM
c) SAM
d) RAM
e) None of these

Answer : A

Question. Interface electronic circuit is used to interconnect I/O de-vices to a computer's CPU or
a) ALU
b) Register
c) Buffer
d) Memory
e) None of these

Answer : D

Question. Which term is used to describe RAM?
a) Dynamic RAM (DRAM)
b) Static RAM (SRAM)
c) Videc RAM (VRAM)
d) None of these
e) All of the above

Answer : E

Question. Which is the type of memory for information that does not change on your computer?
a) ROM
b) RAM
c) ERAM
d) RW/RAM
e) None of these

Answer : A

Question. Which of the following memories has the shortest access times?
a) Magnetic bubble memory
b) Cache memory
c) Magnetic core memory
d) RAM
e) None of these

Answer : B

Question. A set.of information that defines the status of resources allocated to a process is
a) Process control
b) ALU
c) Register Unit
d) None of these
e) Process description

Answer : E

Question. A typical personal computer used for business purposes would have... of RAM.
a) 4KB
b) 256 K
c) 64 K
d) 16 K
e) None of these

Answer : B

Question. Any method for controlling access to or use of memory is known
a) Memory map
b) None of these
c) Memory management
d) Memory instruction
e) Memory protection

Answer : E

Question. Which computer memory is used for storing programs and data currently being processed by the CPU?
a) Mass memory
b) None of these
c) Non-volatile memory
d) PROM
e) Internal memory

Answer : E

Question. Which of the following is a sec-ondary memory device?
a) Disk
b) Keyboard
c) ALU
d) All of the above
e) None of these

Answer : A

Question. The difference between memory and storage is that memory is ......and storage is...
a) Permanent, temporary ..
b) Temporary, permanent
c) Slow, fast
d) All of above
e) None of these

Answer : B

Question. Which of the following regis-ters is used to keep track of address of the memory location where the next instruc-tion is located?
a) Memory address register
b) Memory data register
c) Instruction register
d) None of these
e) Program counter

Answer : E

Question. A (n)_ is a program that makes the computer easier to use.
a) Operating system
b) Application
c) Network
d) Utility
e) None of these

Answer : D

Question. Storage that retains its data after the power is turned off is referred to as
a) non-volatile storage
b) volatile storage
c) sequential storage
d) direct storage
e) None of these

Answer : A

Question. How many'address lines are needed to address each memory location in a 2048 x 4 memory chip?
a) 10
b) 12
c) 8
d) 11
e) None of these

Answer : A

Question. The memory which is pro-grammed at the time it is manufactured
a) PROM
b) RAM
c) POM
d) EPROM
e) None of these

Answer : B

Question. A method of implementing a memory management system is
a) All of the above
b) Bridgeware
c) Broadband coaxial system
d) Buddy system
e) None of these

Answer : D

Question. The two basic types of record access methods are:
a) Online and real time
b) Sequential and indexed
c) Direct and immediate
d) Sequential and random
e) None of these

Answer : D

Question. Which of the following memo-ries needs refresh?
a) DRAM
b) SRAM
c) ROM
d) All of above
e) None of these

Answer : A

Question. Which of the following is the largest unit of storage ?
a) KB
b) GB
c) MB
d) TB
e) None of these 286.

Answer : B

Question. Seek time is
a) time to position the head over proper cylinder
b) time to position the head over proper sector
c) time to position the head over proper track
d) none of above
e) None of these

Answer : C

Question. Registers, which are partially visible to users and used to hold conditional, are known as
a) PC
b) General purpose register
c) Memory address registers
d) Flags
e) None of these

Answer : C

Question. Which of the following regis-ters is loaded with the contents of the memory location pointed by the PC?
a) Memory address registers
b) Instruction register
c) Memory data registers
d) Program counter
e) None of these

Answer : B

Question. Codes consisting of bars or lines of varying widths or lengths that are computer-readable are known as—
a) an ASCII code
b) a magnetic tape
c) a bar code
d) an OCR scanner
e) None of these

Answer : C

Question. Access time is
a) seek time
b) seek time + latency time
c) seek time - latency time
d) latency time
e) None of these

Answer : B

Question. In a database ___ fields store numbers used to perform calculation.
a) Next
b) Key
c) Alphanumeric
d) None of these
e) Numeric

Answer : E

Question. A name or number used to identify a storage location devices?
a) A byte
b) A record
c) All of above
d) An address
e) None of these

Answer : D