What computer should I buy?

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Presentation transcript:

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 Terabyte; Kilobyte; Megabyte; Gigabyte Specification (spec) Primary Storage; Peripherals; Software Processor Hard drive Optical drive HDMI RAM Do you know what they mean?

Evolution of computers! http://www.youtube.com/watch?v=qwCkLO6VAs4&feature=related http://www.youtube.com/watch?v=iEgLwKTsgEo&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! 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?

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

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

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

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

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

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

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

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

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 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: Features: Flat screen / LCD Touchscreen DVD/Blu Ray Performance: Processor RAM Battery life Connectivity: USB Bluetooth Wireless HDMI

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.

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.