The function of an input device is when you can access data of certain information through devices like barcode scanners, sensors and magnetic strip on the back of cards.
Cabling - Optical
An Optical cable is when it has a little light at the end at it is used for connecting a lot of data that is needed to the internet.
Input - Mouse
A mouse is a type of navigator which you can control the computer. It looks like a small button which is a size of a hand and you can click buttons on it.
Output - Plotter
A Plotter is a printer which prints out Vector images using CAD. It looks like a photocopier but now normal printers can do the same job.
Output
The function of an output device is when you can enter data into the computer through the ports that are on the back and the sides of the computer. Input devices are automatic and manual.
Cabling – Twisted Pair
A twisted pair cable which is made up of two separated cables that look like they are plated together. They are used for LAN cables also know as phone cables and Ethernet cables which connect the CPU to the internet.
Input - Scanner
A scanner is an input device which is used to scan documentation for example is a passport copy which you can then keep record on you computer. It looks like a window with a laser that scans the document.
Cabling -Coaxial
It is a cable which is used for radio frequency and for TV cables so that they can transfer data and it looks and has a plastic covering of the outside and it is woven copper inside and has an insulation and copper core.
Input - Keyboard
You can type out using characters as commands that can be read and a keyboard has got letters on it which you can read and send data and messages through typing words.
Input - Microphone
Microphone is devices where you can send data through audio it records sound and you can record your voice on it. It comes in a lot of different sizes but they all have an audio jack which you can connect to the PC.
Output – Printer
A printer is a device that also prints out but it can print out anything onto paper. There is 2 types of printing laser and inkjet. A printer has got many shapes and size but now they have all in one and they contain scanners and fax machine also.