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Nt1310 Unit 8 Internal Memory

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1.7.4 Other
Another type of port is PS/2. The PS/2 is most commonly used for things like Keyboards and Mouse. These are also found on almost all IBM compatible computers. The two ports are colour coded so it’s easier to decide which device goes into which port. The green port is used for the mouse and the purple port is used for the keyboard. PS/2 Ports are starting to be replaced with USB Ports which are more upto date, and able to be used for multiple types of devices and not just mouse and keyboard.

1.8 Internal Memory 1.8.1 RAM (Random Access Memory)
Random access memory (RAM) is the memory in a computer that is used to store computer programs while they are running as well as any other information the programs need to do their job. Information in the RAM can be read and written quickly in any order. Usually the RAM is emptied every time the computer is turned off. It is known as 'volatile memory'.

1.8.2 ROM (Read-Only Memory)
ROM is a memory chip where crucial system instructions (BIOS) are permanently stored. The data held on ROM can be read but not changed. This is done during manufacturing of the ROM chip. ROM is non-volatile, so the data stored on it will not be lost when the computer is …show more content…

A Keyboard allows for you to enter different characters such as letters, numbers and symbols. Each key on a keyboard represents a different character on the computer. There are several different types of keyboards, Ergonomic Keyboards, QWERTY Keyboards, and Braille Keyboards. Another example of an Input Device is a Mouse. A Mouse is a Pointing Device which allows you to move the cursor on the computer. A mouse typically has two-three buttons, which you can use to click and drag objects on the computer. In order for the Mouse to work correctly, it needs to share data with the computer, so the computer then knows what it needs to do with the inputs the mouse is sending

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