Epson EISA Desktop - Manual (Page 169)

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.
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.
Password
The sequence of characters you type after you turn on the
computer in order to access and use your system.
Pathname
The directory name(s) you specify to locate a file. For example,
the pathname for the file SALES, stored in the subdirectory
BUSINESS, is \ BUSINESS\ SALES.
Peripheral device
An external device (such as a printer or a modem) connected to
a computer that depends on the computer for its operation.
Port
A physical input/output socket on a computer to which you
can connect a peripheral device.
Power-on diagnostics
Tests that the computer runs to check its internal circuitry and
configuration each time you turn it on.
Glossary 13