Glossary - IBM 4769 Installation Manual

Glossary

This glossary includes some terms and definitions from the IBM Dictionary of Computing, New
York: McGraw Hill, 1994. This glossary also includes some terms and definitions from:
•
The American National Standard Dictionary for Information Systems, ANSIX3.172-1990,
copyright 1990 by the American National Standards Institute (ANSI). Copies may be
purchased from the American National Standards Institute, 11 West 42 Street, New
York, New York 10036. Definitions are identified by the symbol (A) following the
definition.
•
The Information Technology Vocabulary, developed by Subcommittee 1, Joint Technical
Committee 1, of the International Organization for Standardization and the International
Electrotechnical Commission (ISO/IEC JTC1/SC1). Definitions of published parts of this
vocabulary are identified by the symbol(I) following the definition; definitions taken from
draft international standards, committee drafts, and working papers being developed by
ISO/IEC JTC1/SC1 are identified by the symbol (T) after the definition, indicating that
final agreement has not yet been reached among the participating National Bodies of
SC1.
A
American National Standards Institute (ANSI)
An organization consisting of producers, consumers, and general interest groups that
establishes the procedures by which accredited organizations create and maintain
voluntary industry standards in the United States. (A)
B
bus In a processor, a physical facility along which data is transferred.
C
card
An electronic circuit board that is plugged into a slot in a system unit. A plug-in circuit
assembly.
coprocessor
A supplementary processor that performs operations in conjunction with another
processor. A microprocessor on an expansion card that extends the address range of
the processor in the host system or adds specialized instructions to handle a particular
category of operations; for example, an I/O coprocessor, math coprocessor, or
networking coprocessor.
cryptography
The transformation of data to conceal its meaning. In computer security, the principles,
means and methods used to so transform data.
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