Elements of a computer system

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Presentation transcript:

Elements of a computer system Understanding computers

Learning objectives Distinguish between hardware and software Identify Input, Output and Storage devices Name at least five pieces of software Suggest appropriate input and output devices for a given scenario

What is a computer?

Hardware or software? What is Hardware? What is Software? Objects that you can touch, like a Music CD. For example: Disks, disk drives, display screens, keyboards, printers, boards, and chips. You cannot ‘touch’ software. Software refers to the programs that run on a computer, rather like the music playing on a CD. Examples of software: Windows, MS Word, MS Excel, Kodu and Logo.

Input, output and storage devices What is an output device? What is an input device? What is a Storage device? An output device is a piece of computer hardware used display or output data which has been processed or stored in a computer. Printer, Speaker An input device is anything can be used to enter data into a computer. Keyboard, Mouse A storage device is used to permanently record or store data. CD, Hard Drive

What do each of these images represent. Are they hardware of software What do each of these images represent? Are they hardware of software? Input, output or storage devices?

Computer systems Look at Worksheet 2 Determine the input, process and output in each case