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WorksheetsS3 Computer Systems Unit 2 KC 3
Total questions: 26
Worksheet time: 13mins
Which of the following is NOT a part of the processor in computer structure?
Registers
ALU
Control unit
Memory locations with unique addresses
Memory locations in a computer have unique addresses.
True
False
What is the main purpose of the processor or CPU (Central Processing Unit)?
To store data
To oversee the actions of all other parts of the computer and to execute the machine code instructions
To display images
To connect to the internet
Name the three main parts within the processor.
Control Unit, ALU, and Registers
Control Unit, RAM, and Cache
ALU, Hard Disk, and Registers
Registers, ROM, and Control Bus
The processor is responsible for executing the machine code instructions that make up the programs.
True
False
What is the Control Unit responsible for?
The Control Unit is responsible for the running of programs that are loaded into the Main Memory.
The Control Unit is responsible for storing data permanently.
The Control Unit is responsible for performing arithmetic operations.
The Control Unit is responsible for displaying output on the screen.
Which of the following is a main function of the control unit?
Controls the timing of all operations
Stores data permanently
Prints documents
Manages user input
What does ALU stand for?
Arithmetic and Logic Unit
Advanced Logic Unit
Analog Linear Unit
Automated Logic Utility
The main functions of the ALU are: 1. To perform ________ 2. To perform ________ enable the computer to make decisions, for example by comparing values using operators such as >, <, =, if and else.
arithmetic calculations; logic functions
data storage; input operations
networking; data transfer
image processing; sound synthesis
What are registers in a processor?
Permanent storage areas within the processor
Temporary storage areas within the processor
External memory devices
Input/output devices
Registers are used in a processor to:
Store instructions temporarily
Store data permanently
Connect to external devices
Increase clock speed
What is the processor speed a simple indicator of?
How well a computer system will perform
The color of the computer
The size of the monitor
The amount of RAM
The speed of the processor is measured in _________.
Gigahertz
Megabytes
Lumens
Decibels
The processor speed is also known as the _________.
Core speed
Clock speed
Turbo speed
Cache speed
What is the main memory of a computer used for?
To store programs and data that you are working on.
To permanently store files and documents.
To connect to the internet.
To print documents.
What is another name for the main memory of a computer system?
ROM
RAM
CPU
Hard Disk
Why must a computer have memory?
Because the processor can’t store a whole program at one time.
Because memory is only used for graphics.
Because computers do not need storage devices.
Because memory is only required for internet access.
Each storage location in RAM has a ______ address.
unique
random
shared
duplicate
Which of the following is a feature of RAM?
Data in RAM is read-only
Data in RAM is read/write so it can be changed
Data in RAM is permanent
RAM cannot be upgraded
The functions of the address bus and data bus in a computer system are:
Address bus carries memory addresses, data bus carries data.
Address bus carries data, data bus carries memory addresses.
Both carry only instructions.
Both are used only for input devices.
What is a computer 'bus'? A computer 'bus' is a collection of ______ that are used to carry out a specific purpose.
wires
chips
disks
programs
The Address bus is a ________ as it pinpoints address to be accessed from the processor, no data is being passed back.
one-way bus
two-way bus
data bus
control bus
What does the Address bus help to identify in a computer system?
The type of processor
The location in memory
The speed of the bus
The size of the data
What is the main function of the Data bus?
To carry data from the processor to memory or from memory to the processor
To identify the location in memory
To store data permanently
To control input and output devices
The Data bus is a ________ as data can be written to memory by the processor or read from memory by the processor.
two-way bus
one-way bus
serial bus
address bus
What is the process called where the processor fetches the instruction, transfers it to a register, and then decodes and executes it?
fetch-execute cycle
data transfer cycle
instruction loop
register allocation
