1. What computer should I buy?

2. Starter – Paired activity
What are the pros and cons of smart phones?
Pros
Cons

3. Learning Outcomes
Must recognise the differences between desktop, portable computers, input devices and output devices.
Should be able to identify the benefits of drawbacks of different computers;
Could discuss the suitability of different computers for various needs.

4. Key Words Test Class discussion
Terabyte;
Kilobyte;
Megabyte;
Gigabyte
Specification (spec)
Primary Storage;
Peripherals;
Software
Processor
Hard drive
Optical drive
HDMI
RAM
Do you know what they mean?

5. Evolution of computers!

6. Thinking Time!! Can you think of 5 different computer? Think Pair
Share

7. Types of Computers Desktop; Laptop; Notebook; Netbook;
Personal digital assistant.

8. Common sense? Peripherals are devices you plug into you computer.
Input devices put info/data in!
Output
devices send info/data out!
Storage devices store info and data in the computer
So, can you tell what is an input,output or storage device?

9. Input, output or storage?
Student 6 – quick answer
Projector?
Input, output or storage?

10. Input, output or storage?
Student 16 – quick answer
Flash memory stick?
Input, output or storage?

11. Input, output or storage?
Student 1 – quick answer
Microphone?
Input, output or storage?

12. Input, output or storage?
Student 28 – quick answer
Keyboard?
Input, output or storage?

13. Input, output or storage?
Student 4 – quick answer
Speakers?
Input, output or storage?

14. Input, output or storage?
Student 23 – quick answer
SD Cards?
Input, output or storage?

15. Input, output or storage?
Student 12 – quick answer
Printer?
Input, output or storage?

16. Quick fire questions! Name 3 portable computers.
Give 2 advantages and 2 disadvantages of portable computers.
Give 2 advantages and 2 disadvantages of desktop computers.
Peripherals can be split into the following 3 categories: Input devices, Output devices and storage devices. Give 2 examples of each category.
Tablet computer
Laptop
Netbook
Portable be taken anywhere
Battery life
Easily stolen – quite easily broken
Can be upgraded easily
Good for those at a desk
Can’t take it anywhere
When the power goes...its gone – no backup

17. Whole Class Discussion
Think about the 5 different computers:
Which computer would you recommend for the following types of people:
Traffic Warden;
Teacher;
News reporter;
Stockbroker;
Website designer;
Doctor – GP in a Surgery.

18. Buying a Computer The Magnificent 7
Processor;
Memory;
Hard Drive Size;
Wireless Enabled;
USB Connection;
Sound Card/Graphics Card;
Optical Drive

19. Paired Activity – ‘role play’
When buying a computer:
You need to think about several things:
Its Features (What does it include?)
Its performance (What 2 things should I look for?)
Its connectivity (How can it connect?)
Give me some examples of what I should be looking for in a computer:
Features:
Flat screen / LCD
Touchscreen
DVD/Blu Ray
Performance:
Processor
RAM
Battery life
Connectivity:
USB
Bluetooth
Wireless
HDMI

20. Homework – you must be able to explain what these are:
Explain the following terms and concepts:
Processor;
RAM;
Optical Drive;
Hard Drive size;
Wireless enabled.

21. Have we made progress? Lets relate to our lesson outcomes...
Can you tell me the differences between desktop and portable computers?
Would you be able to tell me advantages and disadvantages of different computers?
Do you think you can recommend a type of computer for a certain job/purpose?

22. Independent Activity
What is one the most important features that must be considered before buying a computer? (4)
The most important feature when buying a computer is The....enables the computer to do This is important because

23. Model answer
One of the most important features before buying a computer is the speed of the processor. The processor is responsible for how fast you can access programs such as the Internet. This is important because time is money in business. However, the faster the processor the more expensive the PC.