Components and features of GPS products

A typical GPS unit will include the following key components.

- External antenna connection - Allows the insertion of an external antenna.

- Main menu button - Pressed to cycle to the main menu screen.

- Memory card slot - Card must be inserted face up.

- Navigation buttons - To cycle through the map software.

- Power button - Pressed to turn the power off or on.

- Reset button - Press to restart the gps, incase of errors etc.

- Speaker - Facilitates the production of the direction instructions.

- USB socket - Used for power adapter, or USB cable to a personal computer.

- Volume control - Control the volume of the inbuilt car hifi speakers.

Optional components may include,

- Anti-glare screen.

- Built-in Bluetooth connection.

- Parking button - Displays a list of all the local parking areas.

- Petrol button - Displays a list of all the local petrol stations.