Hardware & Software Lesson 1 Computer Systems & Components KS3 COMPUTING Hardware & Software Lesson 1 Computer Systems & Components KS3 Computing Hardware & Software

Lesson Aims 1 To understand the term Computer System 2 To understand the four parts of a Computer System 3 To understand the term Component 4 To understand the role of the main components in a computer system

These are the four elements of a computer system Computer Systems These are the four elements of a computer system 1 Input 2 Output 3 Process 4 Storage

Which of these household items is a computer system? Computer Systems Which of these household items is a computer system? Remember a system must have ALL four of the components that make up a computer system. Computer Systems Non-Computer Systems

Computer Systems What makes a computer system? Watch the following video: Link: https://www.youtube.com/watch?v=9pk6aoCLNXM

Components The internal parts of the system that deals with the inputs and outputs are known as the components:

PC Components Motherboard Also called Mainboard The motherboard allows all of the other components to communicate with each other. The components plug into the motherboard allowing for easy upgrades.

Central Processing Unit PC Components CPU Central Processing Unit The processor carries out all the arithmetic calculations and logic operations of a computer. Think of it as the ‘brain’ of a computer.

PC Components Memory (RAM) Random Access Memory The memory is where all the current information being worked on is stored. This could be applications (instructions) or data.

PC Components Hard Disk Drive A permanent storage of the operating system, applications and users’ files.

Also called a Video Card PC Components Graphics Card Also called a Video Card Allows more complex graphics to be displayed. Often required for games or 3D applications.

PC Components PSU Power Supply Unit Supplies power to the motherboard which in turn, supplies power to the other components in a computer system.

PC Components Sound Card The sound card allows digital sound to be output from speakers connected to a computer.

Input devices allow you (the user) to give the computer information. PC Components Input Devices Input devices allow you (the user) to give the computer information.

PC Components Output Devices Output devices allow the computer to display processed information to you (the user).

PC Components Storage Devices Storage devices allow users to save their work long term, when the power is turned off these devices they do not lose the information.

Activity 1 score = 0 print(“Quiz Part 1 – PC Components”) Create a Python quiz about Computer Systems and Components score = 0 print(“Quiz Part 1 – PC Components”) #repeat the code below for each question print(“Question 1!”) answer = input(“Question here? ”) if answer == “Answer here”: print(“Correct answer”) score = score + 1 else: print(“Wrong answer”) #after the final question output the total score print(“Your final score is ” + str(score) + “.”) USE THIS CODE TO HELP YOU Questions need to be about computer systems and pc components. The components presentation is in the Python folder.

Activity 1 Help Example Questions Q Name the component that stores your open programs and files when in use. A Memory or RAM Q A computer system must contain input, process, storage and what? A Output Q The component that allows all other components to communicate with each other. A Motherboard

Activity 1 More Help Example Questions Q What is known as ‘the brain of the computer’? A Processor Q Without this component you could not listen to music on your computer. A Sound Card Q What does PSU stand for? A Power Supply Unit

PC Components Sound Card The sound card allows digital sound to be output from speakers connected to a computer.

These features will enhance your program: Extension Activities These features will enhance your program: 1 Save to File Store the results of each quiz attempt in a text file 2 Case Allow the user to enter upper or lower case answers by using .lower() 3 Answers Use an elif to allow alternative answers 4 Name Ask the user their name and use it in the questions and score sections 5 Sleep Use time.sleep(1) to add subtle pauses to your program

Complete the following work: Independent Study 1 Complete the following work: Write down 5 questions and answers about pc components that you can add to your Python quiz next lesson. The answers must be one or two words only. These can be written on paper or in your planner. This work is due for next lesson.

Put all rubbish in the bin Activity 2 Cut and Stick Activity Step 1 Title of PC Components PC Components Step 2 Cut out each component Motherboard Memory Step 3 Stick them on the A3 paper Step 4 Write the component name Allows all the components to connect to each other. Step 2 Write a description of each Stores currently running Programs and files. Put all rubbish in the bin There are a total of 10 components A3 paper Help www.gcflearnfree.org/computerbasics/inside-a-computer/1

Complete the following work: Independent Study 2 Complete the following work: Complete the cut and stick activity started in the lesson. All the components must be cut out and stuck on the A3 paper, along with a title and descriptions of each. This work is due for next lesson.