Epson EQUITY 386/33 PLUS - Manual (Page 185)

Operating speed
The speed at which the central processing unit can execute
commands. The Equity 386/33 PLUS can run at 33 MHz or
simulated 11 MHz.
Operating system
A collection of programs (such as MS-DOS, OS/2, or UNIX)
that manages a computer’s operations. The operating system
determines how programs run on the computer and supervises
all input and output.
Option card
A circuit board you install inside the computer to provide
additional capabilities, such as a modem.
OS/2
Operating System/2. The enhanced operating system by
Microsoft that provides dual mode processing and multitasking
capabilities. See also Operating system.
Parallel
The type of interface that transmits all the bits in a byte of data
simultaneously over separate lines. See also
Interface
and Serial.
Parameter
A qualifier added to a command that tells MS-DOS what
particular conditions to look for and specifies information such
as what data to process and where to locate or store a file.
Glossary 13