Learning Aims B- MainB- DProcessing

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• Further Education (Key Stage 5)

components on the mainboard- Learning Aims B

Processing data

• How computer Process data. 
• CPU
• ALU 
• Registers 
• Control Unit
• GPU
• Cache Memory
• Clock Frequency
• Data Bus and Many more 

HDD

Memory 

Power Supply

Motherboard

Which ond of these component uses a Fan?

1. HDD
2. Memory
3. USB
4. Power Supply

Which of these components are a type of memory

1. Motherboard
2. CPU
3. Chipset
4. RAM

Draw a diagram of a computer

Components inside the CPU

ALU  (Arithmetic and Logic Unit)

Carries out calculations and comparisons (used in sorting and searching)

Store bytes of data which are used by the ALU

Registers --Store bytes of data which are used by the ALU

Also stores the address in RAM so the CPU knows where the next

Control Unit-Controls instructions being passed between RAM, registers and the ALU

Sends the result of the instructions to the other components

What is the meaning of CPU

1. Central Processing Utility
2. Central Processing Utility
3. Central Print Utility
4. Central Processing Unit

What is the meaning of GPU ?

1. General Processing Unit
2. Great Processing Unit
3. Graphical Processing Unit
4. General Processing Utility

Passes data to the RAM and other

components 

Does comparisons and calculations

with bits of data 

Stores  bytes of data that are used

 by the ALU and the results

Registers 

control Unit

ALU

GPU (Graphical Processing Unit)
What is the Benefit to a CPU if a GPU is used?

Processing Data 

The features of the CPU and GPU can affect performance and user experience.

Performance is how fast data is processed. User experience is the speed at which the  device appears to run to the user. A slow device can be very frustrating to a user!

Here are four factors that affect performance. 

Clock speed 

Clock speed

The clock speed determines the speed of the processor.

One clock cycle will process one word  of data (see page 54 for more on words)

The clock speed is measured in MHz or GHz

Multiple Processing

Multiple processing cores

Processors often have multiple cores.

Each core can process simultaneously.

Cache Memory 

Cache memory is used between faster and slower devices to let them work more quickly together. For example, the processor has a cache memory to help speed up access to the slower RAM.

Data buses

A data bus is a circuit which connects one part of the motherboard to another. The more data it can handle, the faster information can travel between components and the better the performance of the computer. 

Penny is choosing a new computer and has narrowed her choice to two devices with these CPU specifications: Which one should she use and why?
PC1 Quadcore 2.5MHZ - PC2 Dual core 2,5

Explain why, in a PC, cache memory
might be used between fast RAM and a
slow HDD.

How does this affect performance?

How does this affect ?

For this section you have learnt

Data