ICT IGCSE ch 1 & 11. Types of computers What can each do?

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Presentation transcript:

ICT IGCSE ch 1 & 11

Types of computers

What can each do?

Which type of computer suits the purpose?

PersonNeedsComputer Sales person Check , write documents, take the computer on visits and show large pictures to clients Laptop StudentAlready has a desktop machine but wants to check on the bus, and have a computer that fits in the pocket and isn’t too expensive WAP phone Mum and Dad A machine to use at home, to do online shopping and keep details of household bills Desktop LawyerPocket-sized computer that enables her to check away from the office and write short notes about clients PDA

Peripheral shopping

NeedsPeripherals I’m a keen photographer. I want to electronically store the photos I already have; take more photos to use on my computer; and print copies to give to my friends. scanner, digital camera, inkjet printer I like to play action games on my computer. I want to communicate with my friends when we are online so that they can see me when I talk, and play my heavy metal music without complaints from the neighbours. joystick, webcam, headphones I record talking story books for children to listen to on computer. I also illustrate them, but hate drawing with a mouse. I like to relax by watching movies. microphone, graphics tablet, DVD drive I am a professional writer, and I need to print clear copies of my books, but only in black and white. I need to send really big files to my publisher, and save my work so that I can take it to other machines. laser printer, ADSL modem, CD writer

Summary There are different types of computers. These include mainframe, desktop, laptop, PDA and mobile phones. Each type of computer is suitable for different purposes. When choosing a computer it is important to ensure that the peripherals chosen with the system meet the user’s needs.