CBSE Class 9 Computer Science Storage Devices Online Test Set A

Question: In digital computers program first needs to be executed is loaded in ————— and then instructions are executed
a) CPU
b) memory
c) HDD
d) USB
Answer: b

Question: Each ————- of memory has a unique number assigned to it
a) byte
b) bit
c) kilobyte
d) megabyte
Answer: a

Question: During ————- operation the content of the CPU register are copied to memory location
a) read
b) write
c) execute
d) add
Answer: b

Question: CPU can perform two type of operations on RAM —————— and —————-
a) read, write
b) read, execute
c) write, execute
d) write, burn
Answer: a

Question: RAM is usually built using two different technologies——————- and ————–
a) ROM,RAM
b) DRAM, SRAM
c) EEPROM,RAM
d) RAM, EPROM
Answer: b

Question: Main memory consists of millions of cells each cell can store a —————
a) byte
b) bit
c) kilobyte
d) megabyte
Answer: c

Question: During —————- operation the contents of the main memory are copied to the CPU register
a) read
b) write
c) execute
d) add
Answer: a

Question: Memory cells are logically organized into group of 8-bits called —————
a) byte
b) bit
c) kilobyte
d) megabyte
Answer: a

Question: Memory locations of main memory can be accessed in ————– time
a) different
b) same
c) two times
d) unequal time
Answer: b

Question: Computers need to have some kind of ———— devices to store large programs and data
a) storage
b) output
c) scanning
d) input
Answer: a

Question: 1 nibble is equal to ——————-
a) 2 bits
b) 4 bits
c) 8 bits
d) 1 byte
Answer: b

Question: 1byte is equal to ————–
a) 2 bits
b) 4 bits
c) 8 bits
d) 1 byte
Answer: c

Question: ————–memory is very fast but limited in capacity
a) primary
b) secondary
c) USB
d) Hard Disk
Answer: a

Question: 1 terabyte is equal to ——————– bytes
a) 1000 bytes
b) 2^40 bytes
c) 2^30 bytes
d) 2^20 bytes
Answer: b

Fill in the Blanks :-

Question: 1 byte-____________________bits.
Answer: 8

Question: A________________memory chip less than one-fourth the size of a postage stamp can store more than 4,000,000 bits, or more than 400,000 characters of data.
Answer: cMOS

Question: 1 megabytes =______________kilobytes.
Answer: 1024

Question: Data can be accessed from ___________without any mechanical movement at electronic speed, close to the speed of light.
Answer: RAM

Question: CMOS stands for__________________________________.
Answer: complementary Metal Oxide Semiconductor

Question: 1 kilobytes=_________________bytes.
Answer: 1024

Question: SIMMs stands for__________________________________.
Answer: Single in-line memory modules