Epson 386SX - Manual (Page 265)

Interface
A physical or software connection used to transmit data
between equipment or programs.
Internal command
An MS-DOS command that is stored in the command
processor of the operating system; it is not a separate program
file. Examples include COPY, DEL, RENAME, and DIR.
Jumper
A small device that connects two pins on an option card, the
SIMM card, or the main system board to activate a particular
function.
Key disk
A diskette containing a copy-protected program that must
remain in the diskette drive while you are using the program.
Kilobyte (KB)
A unit used to measure storage space in a computer’s memory or
on a disk. One kilobyte equals 1024 bytes.
LIM EMS
The Lotus/Intel/Microsoft Expanded Memory Specification-a
protocol that allows certain application programs to use memory
that MS-DOS cannot use.
Logical disk drive
A subdivision of a physical disk drive, which MS-DOS treats as
though it were a separate physical component of the computer.
A physical disk drive may be divided into several logical disk
drives.
Glossary 11