WorksheetsMemory and Storage
Total questions: 39
Worksheet time: 43mins
Why is ROM need in a computer system?
It stores the 'BIOS' which is needed to load the operating system.Without it, the computer wouldn't turn on.
It stores the data of the operating system and programs that are currently running, for access by the CPU.
Temporary sections of the hard disk created by the operating system when RAM is full.
Virtual Memory
Random Access Memory
Read Only Memory
Cache Memory
Why is Virtual Memory needed in a computer system?
It is used as a fast type of memory for programs currently in use to speed up the performance of a computer.
When RAM gets full, instead of closing programs the Operating system uses virtual memory to store some data.
Where is data stored when it is Virtual Memory?
On a secondary storage device e.g. hard disk drive.
On the RAM.
On the ROM.
On an optical device e.g. CD.
Same as 1024 Gigabytes
1 Terabyte
1 Gigabyte
1Megabyte
1 Kilobyte
Very portable and robust as it is designed to be fitted into small electronic devices.
Flash memory
Hard disk drive
Magnetic tape
CD
Typically has the largest storage capacity and is the cheapest per Gigabyte.
Magnetic storage
Solid state storage
Optical storage
What does volatile memory mean?
Data is retained when the power is switched off
Data is lost when the power is switched off
Which of these components are included in a Hard Disk Drive?
Motor
Platter
Read-write head
ALU
Laser
Which of these components are included in a Optical Disk Drive?
Motor
Platter
Read-write head
ALU
Laser
Which of these components are included in a Solid State Drive?
Motor
Platter
Read-write head
ALU
Transistor
Binary data on Hard Disk Drives is represented using...
Magnetic charges
Physical pits and lands
Electrical current
Lasers
Binary data on Optical discs is represented using...
Magnetic charges
Physical pits and lands
Electrical current
Lasers
What is secondary storage
A non-volatile piece of storage that holds data until overwritten or deleted
A piece of storage that is used second
A volatile piece of storage
A storage that is always accessible
SSD is:
Faster than HDD
Slower than HDD
Larger capacity than HDD
Smaller capacity than HDD
What type of track does DVD RAM have?
Which is portable storage?
RAM
USB Flash memory
Blu-ray disc
HDD
SSD
A computer's external hard drive is often considered a _______ storage device
primary
secondary
tertiary
tertiary
Information that we no longer seeing on the screen has been erased from RAM.
True
False
RAGHAV WANTS TO COPY 3 MOVIES ON A DISK, SO AS TO SEE THEM AT HIS PLACE. WHICH TYPE OF DISK WOULD BE THE MOST SUITABLE FOR THIS PURPOSE?
CD
DVD
BLU RAY DISC
PEN DRIVE
__________ IS FIXED INSIDE THE CPU AND CONTAINS ALL THE DATA.
HARD DISK
BLU RAY DISC
DVD
CD
What is ROM used for?
It is the main memory of the computer
Stores the entire operating machine
Booting up the machine
Why is a Hard Disk Drive (HDD) not very portable?
It has moving parts
It is too large
It will break if you touch it
It is too small
Main memory is any memory that is….
non-volatile and permanently stores data (e.g. Hard disk)
permanent and stored in a flash capacitor (e.g. USB stick)
directly accessed by the CPU (e.g. RAM)
None of the above
Four examples of optical storage media are: • DVD-RW • DVD-RAM • CD-ROM • Blu-ray disc The table below shows four features of optical storage media. Tick (✓) the appropriate boxes in the table to indicate which of the features apply to each example of optical storage media. Single track
Solid state drives (SSD) are replacing hard disc drives (HDD) in some computers. (i) Give three reasons why this is happening
) Explain why many web servers still use hard disc drive (HDD) technolog
