Hardware

Task Time (minutes) a

1. Complete self assessment sheet. 22. Read through the chapter on hardware 153. Work through the questions on the revisiontemplate focusing on weaker areas first.

25

4. Attempt the multiple choice test on Edmodo. 105. Attempt the past paper exam questions. 206. Mark past paper exam paper questions. 157. Read through the chapter on hardware. 158. Attempt the multiple choice test on Edmodo again. 10

“Every lesson counts – don’t waste a minute.”

Hardware - CPUHardware is the term that describes the physical components of a computersystem – anything that can be seen or touched.

Hardware components include input, output, storage and processingdevices.

Exam tip: Questions on these topics often require you to knowdefinitions of the CPU, Cache memory & clock speed.

1. What is the purpose of the CPU?(1 mark)

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2. What is meant by ‘2.5 MHz qud core’ when describing a processor?(4 marks)

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3. State one advantage and one disadvantage of a dual-core processor over a single-core processor.

(1 mark)

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Term Description.

Fetch – execute cycle.

The boot sequence.

CPU clock speed.

Cache memory.

Hardware - Memory Exam tip: The way virtual memory and main memory interact and the effect this has on processing speed is important.

1. Why does a computer have both ROM and RAM?(2 marks)

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2. What is in RAM when the computer is working?(3 marks)

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3. How does the use of virtual memory affect the performance of a computer?

(3 marks)

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4. How would installing extra RAM affect the use of virtual memory and what effect does this have on the performance of the computer?

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Hardware – Binary logic Exam tip: You will be expected to be able to complete a truth table for a logic circuit and a draw a logic circuit.

2. Complete the truth table for the circuit below.(16 marks)

Output = A AND B Output = A OR B Output = NOT A

AND OR NOT

1. Determine the output from each of the following logic circuits.

(6 marks)

Input & output devices.1. Identify two input and two output devices on a mobile phone.

(4 marks)

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Input devices.Device. Use (describe what it is used for).

Keyboard

Mouse

Touch screen

Microphone

Output devices.Device. Use (describe what it is used for).

Monitor

Printer

Plotter

Speakers

Devices to help with disabilities.Device. Use (describe what it is used for).

Eye-typer

Foot mouse

Puff-suck switch

Braille keyboard

2. Identify, with reasons. Three devices that would be help a visually impaired person to use a computer.

(6 marks)

Device 1: ..................................................Reason:……………………………………………………................................................................................................................................................................…………………………………………………….................................................................................................................................................................……………………………………………………............................................

Device 2: ..................................................Reason:……………………………………………………................................................................................................................................................................…………………………………………………….................................................................................................................................................................……………………………………………………............................................

Device 3: ..................................................Reason:……………………………………………………................................................................................................................................................................…………………………………………………….................................................................................................................................................................……………………………………………………............................................

Secondary storage1. Why does a computer need secondary storage?

(2 marks)

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2. What is the most useful type of secondary storage for...

(4 marks)

a) Transferring work between home and school.

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b) Distributing a software application......................................................................

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c) storing work and programs on a large school network.

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d) Storing images in a digital camera......................................................................

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Magnetic Optical Flash

Past paper exam questions.2011 past paper.

Past paper answers.2011 past paper.

Notes: What do I need to improve?

Past paper answers.2011 past paper.

Notes: What do I need to improve?

Past paper exam questions.2011 past paper.

Past paper exam questions.2011 past paper.

Past paper answers.2011 past paper.

Notes: What do I need to improve?

Past paper answers.2011 past paper.

Notes: What do I need to improve?

Past paper exam questions.2012 past paper.

Past paper exam questions.2012 past paper.

Past paper answers.2012 past paper.

Notes: What do I need to improve?

Past paper answers.2012 past paper.

Notes: What do I need to improve?

Past paper exam questions.2013 past paper.

Past paper answers.2013 past paper.

Notes: What do I need to improve?