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Card – Epson 386/25 User Manual

Page 311

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Numeric keypad

The number keys grouped to the right of the keyboard.

Operating speed

The speed at which the central processing unit can execute
commands. The Equity 386/25 PLUS can run at 25 MHz or
simulate an 8 MHz operating speed.

Operating system

A collection of programs (such as MS-DOS, MS 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.

Parallel

The

type of interface that transmits all the bits in a byte of data

simultaneously over separate lines. See 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 you want to process and where to locate or store a
file.

Parity

A method used to verify the accuracy of data transmissions by

adding

a bit that makes the total of the byte odd for odd parity

or even for even parity.

G l o s s a r y

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