Computer CPU

Computer CPU

By Mike Paquette

Please take a moment to watch the video attached.

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Multiple Choice

What is the main function of the CPU?

• To carry out processing of the data.
• To help with playing games.
• To fetch instructions from memory, decode them and execute the instructions.
• To heat up the computer.

Multiple Choice

CPU stands for

• Computer Processing Unit
• Central Processing Unit
• Core Processing Unit
• Central Power Unit

Multiple Choice

Without a CPU the computer would not work.

• true
• FALSE

Multiple Choice

The CPU fetches instructions from.... and executes those instructions.

• Memory

• ALU

• ROM

• Input Device

Multiple Choice

Information used by the CPU is loaded first in

• ROM

• RAM

• CMOS

• Register

Multiple Choice

Clock speed is measures in

• bytes
• bits
• time
• hertz

Multiple Choice

Either stores the address from which data will be fetched from the CPU, or the address to which data will be sent and stored.

• MAR (Memory Address Register)

• MDR (Memory Data Register)

• CIR (Current Instruction Register)

• PC (Program Counter)

• ALU (Arithmetic and Logic Unit)

Multiple Choice

What is a bus?

• A circuit that connect one part of CPU to other components.
• A type of long term memory
• A type of permanent memory
• A method of transport

Multiple Choice

How does clock speed affect computer performance?

• The higher the clock speed the slower the computer will run.
• It improves the amount you can store on the computer.
• The higher the clock speed the better the performance.
• It will make loading program slower

Multiple Choice

Which of the following CPU's will have a better better performance:
A: 3 GHz Quad Core CPU
B: 3 GHz Duel Core CPU 

• A
• B

Multiple Choice

The purpose of the CPU is to ____. 

• Process data
• Store data

Multiple Choice

____ is a small amount of memory which is a part of the CPU - closer to the CPU than RAM.

• Cache
• Core
• Intel
• Clock speed

Multiple Choice

A clock speed of 500Hz means...

• 500 cycles per second
• 5000 cycles per minute
• 5 cycles per hour
• 50 cycles per minute

Multiple Choice

What is the job of the control unit?

• It carries out calculations
• It stores information.
• It does nothing.
• It controls the input and output of data to make sure that it gets to the right place.

Multiple Choice

What is the program counters job?

• To count the programs
• It contains the memory address of the next instruction to be loaded
• It stores instructions
• It carries out the calculations

Multiple Choice

Which of the following is a job of the control unit?

• To start up the computer
• To manage the fetch decode execute cycle
• To create presentations
• To carry out calcul

Multiple Choice

What is cache memory?

• A very large, temporary memory
• A very small but expensive memory
• It is used to store data and programs permanently
• It is a type of payment

Multiple Choice

How can a bigger cache improve CPU performance?

• By being able to carry out more calculations
• By being able to store more recently used instruction inside the CPU for quicker access times
• By being able to 

Multiple Choice

The main circuit board in the system unit is also called the

• Busboard

• Chipboard

• RAM

• Motherboard

Multiple Choice

Computers use _______ signal to represent information

• Analog

• Digital

• Pulse

• Decimal