User's Manual

Appendix C. Glossary
XC6 User’s Handbook 73
cartridge for easy removal.
Status Indicator (LED). a light above the LCD screen which
indicates the current status of a particular device or hardware
component.
Stylus. A writing instrument. For pen computers, the stylus is used to
interface with the LCD and digitizer.
Subscriber Identity Module (SIM). A smart card inside a GSM
(Global System for Mobile communications) cellular device that
encrypts voice and data transmissions and stores data about the specific
user so that the user can be identified and authenticated by the network
supplying the phone service. A SIM can be moved from one device to
another and/or different SIMS can be inserted into any GSM radio.
Universal Serial Bus (USB). A serial interface that enables
communication between devices and the computer.