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WorksheetsYear 9 exam
Total questions: 20
Worksheet time: 7mins
What are the three things that affect the performance of the CPU?
Clock speed, number of cores and cache
speed, capacity and cost
number of doors, cash and seeds
cache, speed and registers
How does increasing cache memory affect the performance of a computer?
Gives it a bigger capacity which makes the computer more efficient
Increases the number of cores which makes the computer more efficient
Data is transferred faster which makes the computer more efficient
The computer is made more reliable but less efficient
What is secondary storage?
short term / non volatile storage of data
Long term / volatile storage of data
Long term / non volatile storage of data
long term / variable storage of data
Which type of memory is used to store the boot up sequence?
RAM
ROM
VIRTUAL
REGISTERS
Which type of memory is known as the WORKING MEMORY?
VIRTUAL
CACHE
ROM
RAM
Which of the following answers is a characteristic of RAM?
You can read and write to it,
It is non volatile
It stores the boot up sequence
Stores the data currently in use
Which answer gives 3 characteristics of storage devices?
cost, speed and cache
durability, reliability and speed
Portability, durability and calamity
virtual, cache and registers
What is meant by an embedded computer?
A computer that makes your bed.
A computer that can multitask.
A computer that is built into another device.
A computer that is used in manufacturing.
What does ALU stand for?
Arithmetic Logic Unit
Accumulator Logic Unit
Arithmetic Learning Unit
Arithmetic Logic Undercard
What does SSD stand for?
Solid State data
Solid State Device
Storage State Device
Solid Storage Device
What type of storage can be used for a Hard Drive?
optical
Magnetic
Solid State
embedded
What type of storage is a USB flash drive?
SSD
Optical
Magnetic
Virtual
What type of storage is a Bluray disc?
SSD
Magnetic
Optical
Cache
How many MB are there in 3.4 GB?
3400 MB
3400GB
3.4PB
34MB
Why do we need secondary storage?
Because RAM is non volatile
Because RAM is primary memory
Because ROM is read and writeable
Because RAM is volatile
Which component in the CPU stores the address of the next instruction?
Accumulator
Arithmetic Logic Unit
Program Counter
Memory Data Register
Which component in the CPU stores the results of a calculation?
Memory Data Register
Cache
Accumulator
Program Counter
When do we need virtual memory?
When ROM is full.
When RAM is full.
When the hard drive is full
When we use virtual reality technology
The following characteristics describe which storage type - high capacity, low cost per MB, medium durability, high speed?
Magnetic
Optical
SSD
RAM and ROM
The following characteristics describe which storage type - Low capacity, low cost per MB, Poor durability, Slow speed?
magnetic
SSD
Optical
Disk thrashing
