WorksheetsYear 10 IGCSE Units 1 to 6 Revision
Total questions: 50
Worksheet time: 26mins
Which of these are internal hardware components in a computer (select all that apply)
mouse
RAM
CPU
operating system
BIOS
Select all the components of the CPU
ALU
Control Unit
Registers
RAM
Choose all the types of system bus?
Address
Data
Control
Register
Choose all the registers found in a typical processor?
Current Instruction
Accumulator
Memory Data
Memory Address
What is meant by a von Neumann computer architecture?
Where the program instructions are stored in a seperate memory storage from the data
Where the program instructions are stored in the same memory storage as the data
Where the program instructions are stored in ROM and the data is stored in RAM
Where the program instructions are divided across several CPUs
What is the main storage area for program instructions and data in a Von Neumann computer architecture?
RAM
CPU
ROM
Cache
What controls the timing of the instruction cycle in a computer
The amount of RAM available
The frequency of the internal clock
The width of the address bus
The size of addressable memory
What controls the timing of the instruction cycle in a computer
The amount of RAM available
The frequency of the internal clock
The width of the address bus
The size of addressable memory
Which word describes the property of RAM memory where memory cells must be constantly refreshed to keep their contents
volatile
non-volatile
random
static
A type of primary memory that does not need to be refreshed to retain its contents AND whose contents cannot be changed
RAM
BIOS
Flash
ROM
What is the non-volatile firmware used to perform hardware initialization during the booting-up process called?
BIOS
Cache
ROM
Hard disk
What type of memory is used to compensate for the difference in speed between accessing processor registers and reading memory locations in RAM?
Cache
Flash
UEFI
BIOS
What is the part of the CPU that performs calculations and makes decisions called?
ALU
Control Unit
Registers
Clock
Name for the small, very fast access storage locations inside the CPU that can store one data item, instruction or address
Cache
Registers
ALU
RAM
The part of the CPU that directs the operations of the processor
Control unit
ALU
Registers
Clock
A register inside the CPU in which intermediate arithmetic and logic results are stored
Accumulator
Program counter
Memory Data Register
Current Instruction Register
A register inside the CPU that stores the memory address of the next instruction to be fetched from memory
Accumulator
Program counter
Current Instruction Register
Memory Data Register
What is the correct sequence of operations between CPU and RAM?
Fetch-decode-execute
Fetch-execute-decode
Decode-fetch-execute
Fetch-execute-fetch
Choose all the secondary storage mediums ...
HDD
SSD
DVD
Cloud
RAM
What type of storage does this device use?
Magnetic
Optical
Solid state
Cloud
What type of storage does this device use?
Magnetic
Optical
Solid state
Cloud
Which secondary storage device make use of a laser light?
What types of storage would usually be found in an embedded system? (select all that apply ...)
ROM
RAM
HDD
SSD
Which types of memory storage are volatile? (choose all that apply ...)
RAM
ROM
Flash
Cache
Choose all the factors that could potentially affect the performance of the CPU ...
Frequency of internal clock
Number of processor cores
Size of cache memory
Type of cache (L1, L2, L3)
Amount of RAM
Choose 2 actions that could help improve the CPU performance ...
Increase amount of RAM
Replace dual-core with quad-core processor
Increase size of cache
Replace HDD with SSD
Data transmitted several bits at a time down several wires in both directions simultaneously
Serial
Parallel
Data transmitted several bits at a time down several wires in both directions simultaneously
Simplex
Half-duplex
Full-duplex
Data is trasmitted one bit at a time down a single wire, the data is transmitted in both directions but not at the same time.
Serial
Parallel
Data is trasmitted one bit at a time down a single wire, the data is transmitted in both directions but not at the same time.
Simplex
Half-duplex
Full-duplex
True or False? Structure and Presentation in a HTML document are kept seperate
True
False
True or False? You would add text formatting in the HTML section of code instead of CSS?
True
False
.JPEG is an example of a compressed file format
True
False
.GIF is an example of a compressed file format
True
False
.PNG is an example of a compressed file format
True
False
.WAV is an example of a compressed file format
True
False
.MP3 is an example of a compressed file format
True
False
Which one of these are lossless file formats?
JPEG, MP3, MP4, ZIP
PNG, BMP, WAV
Which is an example of using hexadecimals in computer science?
MAC addresses
URL
File types
Which is an example of using hexadecimals in computer science?
URL
HTML/CSS
File types
True or False? We use hexadecimal numbers in computer science because we can represent 16 bit words as 4 hexadecimal digits
True
False
True or False? We use hexadecimal numbers in computer science because its easy to convert hex back to binary if necessary
True
False
Hardware identification number that uniquely identifies each device on a network.
IP address
MAC address
Internet Service Provider
Location of a device on a network
IP address
MAC address
Internet Service Provider
Company that provides individuals access to the internet
IP address
MAC address
Internet Service Provider
An even parity check was used here. Is this correct? 10011100
Correct
Incorrect
An odd parity check was used here. Is this correct? 10011100
Correct
Incorrect
Which is the fastest kind of memory for the CPU to access?
Random access memory
Level-1 cache memory
Level-2 cache memory
What is 10111100 in hex?
15
AD
BC
What is the hexadecimal value 2D equivalent in denary (base 10)?
2014
45
33
