KS3 Computer Science CPU & Hardware Booklet

Transcription

1 KS3 Computer Science CPU & Hardware Booklet Pupil Teacher The BIG Question: How do you build a Robot?

2 Contents Knowledge Audit... 3 Input and Output Devices... 4 CPU and Internal Devices... 6 Homework... 8 NOTE: Improved response space is for formative feedback given during lessons. Formal feedback will be given in assessment at the end of the unit, therefore, this space will only be used as and when necessary.

3 Knowledge Audit Highlight your starting point in Green. You will update this matrix as you progress through the unit of work, highlighting newly achieved levels of understanding in Yellow. Topic Low Awareness Some Understanding Expected Understanding Above Expected understanding Input Devices these do I can give some examples of input devices I can explain what makes something an input device I can state what input devices would be needed for specific systems such as a burglar alarm Output Devices these do I can give some examples of output devices I can explain what makes something an output device I can state what output devices would be needed for specific systems such as a burglar alarm CPU this does I can give a basic statement about what this does I can describe how this does its job I can explain what is meant by clock speed and how this relates to CPU performance RAM this does I can give a basic statement about what this does I can explain why RAM is needed in a computer I can explain how RAM relates to the processing speed of a computer ROM this does I can give a basic statement about what this does I can explain why ROM is needed in a computer I can explain how ROM relates to the processing speed of a computer Hard-Drive this does I can give a basic statement about what this does I can clearly explain what the harddrive is used for I can explain what is meant by the term virtual memory What is your average starting point? What is your END point? (Complete after final assessment)

4 Input and Output Devices Draw lines to match up the devices to the human organs (think about the job that they do which body parts perform similar jobs to the devices of a computer?). On the line you ve draw, write a reason why you ve linked them together. If you had any misconceptions in the activity above, use the box below to make a note of what the correct answer is and why

5 Challenge 1 What devices might send signals into the processor? What devices might receive instructions from the processor? What do you think is meant by the term Input Devices? The CPU receives data from the Input Devices and sends instructions to the Output Devices. Challenge 2 What do you think is meant by the term Output Devices? Challenge 3 For each of the systems below. State which Input and which Output Device you might use. System Automatic Door A night-time security light Burglar Alarm Input Device Output Device

6 Challenge Level 2 Challenge Level 2 Challenge level 1 CPU and Internal Devices The devices listed in the first table are those that are used within the Tower of the computer, to do all of the storage and processing of instructions. CPU ROM Hard Drive RAM Which storage device stores the boot sequence which is used to start up the computer? Support: This device is then not used again whilst the computer is switched on. Which storage device holds all of the instructions for the software? Support: These are passed to RAM when they are needed. Which device is used to store instructions that are ready to be loaded into the CPU? Which device is used to decode the instructions and execute them (send them to the output devices)? Which two devices would improve the processing speed of the computer, if they were increased in size? Challenge Level 3 Why? Give Reasons for your answer: Does ROM have any impact on the processing power of a computer? Please circle YES NO Challenge Level 3 Why? Give Reasons for your answer:

7 Challenge Level 2 Challenge Level 2 What is virtual memory? Challenge Level 3 Why is it used? Give Reasons for your answer: What is clock speed? Challenge Level 3 What impact does it have in processing power? Give Reasons for your answer: If you had any misconceptions in the activity above, use the box below (and any further space at the back) to make a note of what the correct answer is and why

8 Homework Topic Task Due Date Label the robot with the names of the devices it needs to function effectively. Hardware What input/output devices will be used for the eyes, ears, mouth and joints? Can you add any further input devices to improve its reflexes? What devices will store and process the information?