IT Revision Flashcards
Define the term ‘computer hardware’
Anything physically inside or a part of the computer system that you can touch. Together they make a computer system.
What is an ‘input device’
A device that allows the user to give instructions to a computer system. For example a keyboard.
What is an ‘output device’
A device that allows the computer to provide information to the user. For example a projector.
Define the term ‘characteristics’
A typical or noticeable feature of something.
Define the term ‘computer component’
A part of the whole computer system that works together with the other ones to form something bigger.
Define the term ‘purpose’
The reason for which something exists. The role that it plays in a computer system.
Define the term ‘computer system’
A series of hardware and software that work together on a system.
Define the term ‘network’
Two or more computers that are linked together in order to share resources with each other. This can be done via radio waves or telephone wires.
Define the term ‘connectivity’
When devices are connected to the internet via radio waves or physical wiring.
Define the term ‘World Wide Web’
A service that runs on devices of the internet. It’s a series of web pages found on computers on the network.
Define the term ‘The Internet’
The physical connections that are made between devices on a network. It is primarily hardware-based.
Give the advantages of using copper wires for physical connection.
They are easier to install and are much cheaper.
Give the disadvantages of using copper wires for physical connection.
They have slower data transfer than fibre optic cables and are much shorter than fibre optic wires.
Give the advantages of using fibre optic wires for physical connection.
They are much longer than copper wires and have faster data transfer.
Give the disadvantages of using fibre optic wires for physical connection.
More expensive, less durability and harder to install than copper wires.
