Texas Instruments TravelMate 5000 Series User Reference Manual page 256

Glossary
SIR port — Serial Infrared port. Lets you connect external
devices without cabling using infrared technology.
software — Computer programs, usually supplied on
floppies or on . Contrast with hardware.
ROM
system board — An internal circuit board that holds the
integrated circuits for the microprocessor, memory, and
clock in your computer.
working copy — A copy of a floppy that is used in
day-to-day operations while the original is kept in storage.
This term also can mean a floppy that has both an
operating system and an application on it.
working directory — The default directory used by an
application when it first is loaded onto the hard drive.
write — To record information on a storage device.
write-protect tab — A switch on a floppy disk that prevents
recording of data over existing data.
12 Glossary