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WorksheetsComputer Memory and Storage Devices Grade 11
Total questions: 45
Worksheet time: 45mins
• It has less access time.
• It stores data temporarily.
• It is used for a computer’s cache memory.
The type of memory that has the given features is:
dynamic random access memory.
static random access memory.
read only memory.
flash memory.
If one alphabet of English language occupies eight bits in memory, then the number of bytes that will be occupied by the word COMPUTER is
8 bytes
16 bytes
32 bytes
64 bytes
When compared to static RAM, dynamic RAM is more
expensive.
fast.
power consuming.
volatile.
1 Giga Byte (GB) of memory is equal to
1024 MB
1024 KB
1000 MB
1000 KB
Which of the following is a valid statement about a DVD?
It is a magnetic storage.
It is an optical storage.
It is a sequential storage.
It is a temporary storage.
Which of the following is a permanent storage?
Buffer
Cache
Register
ROM
In comparison to RAM, ROM is
more expensive and volatile.
less expensive and volatile.
less expensive and non-
volatile.
more expensive and non-
volatile.
A high speed memory that resides between the CPU and RAM in a computer system
to store data and instructions is called
ROM
Buffer
Cache
Secondary
Which of the following is NOT considered as temporary storage?
RAM
Cache
PROM
Registers
If one KiB represents 1024 bytes , then a Tebibyte has how many bytes? (210=1024)
220 bytes
230 bytes
240 bytes
250 bytes
The memory of 640 KiB can store
640,000 bytes.
655,360 bytes.
6048000 bytes.
6024000 bytes.
As compared to dynamic RAM (DRAM), the static RAM (SRAM)
is faster
is low-priced
refreshes periodically
requires less number of transistors.
An example of sequential access memory device is
hard disk.
compact disc.
flash memory.
magnetic tape.
Flash memory is a type of
SRAM
DRAM
EPROM
EEPROM
The number of gibibyte in 102223394 kibibytes are
97.488
102.223
102223
99827.533
The number of petabytes in 102223394 gigabytes are
97.488
102.223
102223
99827.533
The number of bits in 2056 Kibibytes are
205600000
16448000
2056000
16842752
Fatima purchased a CD which contains video files. She can copy video files from CD to her computer but she cannot copy anything back on the CD.
The type of CD she purchased is
I. CD-R
II. CD-RW
III. CD-ROM
II only.
III only.
I and II.
I and III.
The CORRECT arrangement of optical discs in terms of their storage capacity is
A
B
C
D
It is special type of PROM that allows the contents of PROM erased by exposing it to ultraviolet light.
EEPROM
PROM
ROM
EPROM
It is special type of PROM that allows the contents of PROM erased by making use of electric signals instead of ultraviolet light.
EEPROM
PROM
ROM
EPROM
These are manufactured as blank chips on which data/program can be written only once.
EEPROM
PROM
RAM
EPROM
What is computer memory?
device used to store information in computer
device to print output to screen
device to process data
device to process data
Which of these are not memory devices of a computer?
SSD
Cache
Screen
All of these
PROM is provided blank to the programmer?
True
False
In non-volatile memory, data is erased once power is turned off?
True
False
Cache memory is made up of semiconductors?
True
False
Which of these is an expensive memory?
SSD
Cache
RAM
Registers
Which of these is an advantage of cache memory?
It is faster than main memory
It stores data for temporary use
It stores programs to be executed
All of these
Which of the memory is having the highest capacity?
HDD
SSD
Magnetic Tape
None of these
_____ and _____ are closely attached to the CPU.
SSD and HDD
CD and DVD
USB and Memory Card
Cache and Registers
It is a ROM chip located on all motherboards that allows you to access and set up your computer system at the most basic level.
It includes instructions on how to load basic computer hardware and includes a test referred to as a POST (Power On Self-Test) that helps verify the computer meets requirements to boot up properly.
Bootstrap Loader
BIOS
CMOS setup
SD card
It is a primary cache, is extremely fast but relatively small, and is usually embedded in the processor chip as CPU cache.
L1
L2
L3
It is a specialized memory developed to improve the performance of other 2 caches and it is the largest cache.
L1
L2
L3
It store data on flash memory chips, much like a smartphone, USB drive, or slimline tablet.
Optical Storage Device
Magnetic Storage Device
Solid State Drive
Floppy
Magnetic storage devices make spinning disc sounds.
True
False
Method used for hard disk, floppy disks and optical disks is:
Sequential Access
Direct Access
Writing and reading of data can happen at the same time.
CD-ROM
CD-R
DVD-RAM
CD-RW
It is capable of reading data dots that are positioned closer together on the disk surface.
As a result, more data dots can be stored and read.
CD
DVD
BD
DVD stand for
Digital Versatile Disc
Digital Video Disc
Digital Visual Disc
Digital Vision Disc
CD stand for
Computer Disc
Component Disc
Compact Disk
Collaborative Disc
if one integer takes one nibble. How many bits will be there in three integers?
6 bits
8 bits
12 bits
4 bits
25 MB contains how many bytes?
25000
2500000
250000
25000000
Which of these storage devices make use of optics (laser light) to store data? (Tick All)
CD
Fibre Optic Cable
DVD
Blue-Ray
LED
