1. Pick an input device

2. Describe the input device The mouse is a hand held device which has two buttons to left and right click. It also has a centre wheel. The mouse has a mouse ball and is used with a mouse- mat

3. Give the technical specification of the input device QWERTY keyboard USB connection White Numeric keyboard Function keys Wrist wrest

4. How is this used… Tannoy microphone is used to broadcast message to station. The operator presses a black switch and talks Sound waves enter the microphone and are converted into electrical signals

5. Why the company uses this Essential messages can be relayed to every room in the station. The station- manager can never know the exact location of every officer unless he sees them in the same room

6. How efficient is this component at its job Good Sensitive to speech Passes clear message Hands free Bad Easy to damage Can get moved away from face Can pick up normal conversations