The mouse is the second most important way of communicating with a computer. Please be careful to choose the right type of connection when buying a mouse, there are three different types:
- USB is the most modern. You can recognize it by the rectangular connector.
- PS/2 connectors are round. This type of connection is fairly commonly used in PCs.
- Bluetooth is another modern (wireless) connection method.
The keyboard is the main input peripheral used by all computers. The keyboard allows for user input and interaction with the computer. Much like many typewriters the keyboard has all the letters of the alphabet, numbers 0 - 9 and additional special operational keys, e.g. for adjusting the volume or going to your inbox directly. There are three different connection types: