Hardware. Task Time (minutes)  1. Complete self assessment sheet. 2 2. Read through the chapter on hardware 15 3. Work through the questions on the revision.

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Presentation transcript:

Hardware

Task Time (minutes)  1. Complete self assessment sheet Read through the chapter on hardware Work through the questions on the revision template focusing on weaker areas first Attempt the multiple choice test on Edmodo Attempt the past paper exam questions Mark past paper exam paper questions Read through the chapter on hardware Attempt the multiple choice test on Edmodo again. 10 “Every lesson counts – don’t waste a minute.”

Hardware - CPU Hardware is the term that describes the physical components of a computer system – anything that can be seen or touched. Hardware components include input, output, storage and processing devices. Exam tip: Questions on these topics often require you to know definitions of the CPU, Cache memory & clock speed. 1.What is the purpose of the CPU? (1 mark) …………………………………………………… …………………………………………………… What is meant by ‘2.5 MHz qud core’ when describing a processor? (4 marks) …………………………………………………… …………………………………………………… …………………………………………………… …………………………………………………… State one advantage and one disadvantage of a dual-core processor over a single-core processor. (1 mark) …………………………………………………… …………………………………………………… TermDescription. 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) …………………………………………………… …………………………………………………… What is in RAM when the computer is working? (3 marks) …………………………………………………… …………………………………………………… …………………………………………………… …………………………………………………… How does the use of virtual memory affect the performance of a computer? (3 marks) …………………………………………………… …………………………………………………… …………………………………………………… How would installing extra RAM affect the use of virtual memory and what effect does this have on the performance of the computer? (2 marks) …………………………………………………… ……………………………………………………

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 BOutput = A OR BOutput = NOT A ANDORNOT 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) …………………………………………………… …………………………………………………… …………………………………………………… …………………………………………………… 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 storage 1.Why does a computer need secondary storage? (2 marks) …………………………………………………… …………………………………………………… …………………………………………………… …………………………………………………… What is the most useful type of secondary storage for... (4 marks) a) Transferring work between home and school b) Distributing a software application c) storing work and programs on a large school network d) Storing images in a digital camera MagneticOpticalFlash

Past paper exam questions past paper.

Past paper answers past paper. Notes: What do I need to improve?

Past paper answers past paper. Notes: What do I need to improve?

Past paper exam questions past paper.

Past paper exam questions past paper.

Past paper answers past paper. Notes: What do I need to improve?

Past paper answers past paper. Notes: What do I need to improve?

Past paper exam questions past paper.

Past paper exam questions past paper.

Past paper answers past paper. Notes: What do I need to improve?

Past paper answers past paper. Notes: What do I need to improve?

Past paper exam questions past paper.

Past paper answers past paper. Notes: What do I need to improve?