What computer should I buy?
Starter – Paired activity
• What are the pros and cons of smart phones?
Pros
Cons
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.
Key Words Test
Class discussion
1.
2.
3.
4.
5.
6.
7.
Terabyte;
Kilobyte;
Megabyte;
Gigabyte
Specification (spec)
Primary Storage;
Peripherals;
1.
2.
3.
4.
5.
6.
Software
Processor
Hard drive
Optical drive
HDMI
RAM
Evolution of computers!
• http://www.youtube.com/watch?v=qwCkLO6
VAs4&feature=related
• http://www.youtube.com/watch?v=iEgLwKTsg
Eo&feature=related
Thinking Time!!
• Can you think of 5 different computer?
• Think
• Pair
• Share
Types of Computers
•
•
•
•
•
Desktop;
Laptop;
Notebook;
Netbook;
Personal digital assistant.
Common sense?
Peripherals are devices you plug into
you computer.
Input
devices
put
info/data
in!
Storage devices store
info and data in the
computer
Output
devices
send
info/data
out!
So, can you tell what is an input,output
or storage device?
Student 6 – quick answer
• Projector?
• Input, output or storage?
Student 16 – quick answer
• Flash memory stick?
• Input, output or storage?
Student 1 – quick answer
• Microphone?
• Input, output or storage?
Student 28 – quick answer
• Keyboard?
• Input, output or storage?
Student 4 – quick answer
• Speakers?
• Input, output or storage?
Student 23 – quick answer
• SD Cards?
• Input, output or storage?
Student 12 – quick answer
• Printer?
• Input, output or storage?
Quick fire questions!
1. Name 3 portable computers.
2. Give 2 advantages and 2
disadvantages of portable
computers.
3. Give 2 advantages and 2
disadvantages of desktop
computers.
4. Peripherals can be split into the
following 3 categories: Input
devices, Output devices and
storage devices. Give 2 examples
of each category.
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.
Buying a Computer
The Magnificent 7
1.
2.
3.
4.
5.
6.
7.
Processor;
Memory;
Hard Drive Size;
Wireless Enabled;
USB Connection;
Sound Card/Graphics Card;
Optical Drive
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:
Homework – you must be able to
explain what these are:
Explain the following terms and concepts:
1. Processor;
2. RAM;
3. Optical Drive;
4. Hard Drive size;
5. Wireless enabled.
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?
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.........
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.