Computers and digital devices work by ____ and ____ information. Processing means to work with or ____ and computers use a computer processor or ____ to do this. The computer can only process information that is has been given, or that it has collected. This information is called ____. It has been put into the computer system. When the computer has processed the information and carried out the task it sends it back out. We call this information ____. Computers can only work with ____ that has been converted into a code made up of numbers. This conversion is called ____. Information that has been converted or digitised into numbers is called digital information or ____. If information has been created by a digital device like a digital camera it is already digitised. If information is not digital, like a printed photo, it needs to be digitised using a ____ or a digital camera. There are many different ways we can input data into a computer system. The devices we use are called input devices and include keyboards, touch screens, microphones, movement sensors and webcams. Some examples of input include: Words written using a ____ Screen clicks using a ____ Live video from a ____ Sound from someone using a ____ for voice control Movement in front of a ____ in an automatic door When a computer has finished ____ input, it is sent back out of the computer ready to be used. ____ can be sent to lots of different types of devices, including screens, printers, speakers and headphones. It can also be sent to lights or motors to make things light up or move. Some examples of output include: Sound coming from a mobile phone ____ Text appearing on a laptop screen or computer ____ Pictures printed from a ____ Video shown on a tablet ____ Movement from a ____ when an automatic door opens Some devices are both input and output devices. A tablet ____ can act as an input device by sending information into the tablet’s computer ____ as you press different areas of the ____. It can then ____ an output like an ____ or a ____ on the screen, or play an output ____ through speakers or headphones.

Input and Output Devices

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