6760 ServerNet/DA Manual

Glossary
6760 ServerNet/DA Manual—424879-003
Glossary-10
card cage
is included with all Compaq TSM workstations, and service providers use it to dial in to
TSM workstations at customer sites. See also remote access
.
card cage. A structure made up of slots that hold components such as customer-
replaceable units (CRUs) and ServerNet adapters.
carrier. (1) A sheet-metal structure that allows a single-high ServerNet adapter to be
installed in a ServerNet adapter slot designed for a double-high ServerNet adapter.
(2) An electrical signal that carries data.
cartridge. See optical disk cartridge.
cartridge access port (CAP). The component on the optical storage library (OSL) and the
tape libraries supported on HP NonStop™ S-series systems where you insert
cartridges into and remove cartridges from the library.
caught signal. A programmatic signal that is delivered to a process that has a signal-
handling function for it. When the signal is caught, the process is interrupted and the
signal-handling function executes.
CBB. See common base board (CBB).
CCITT. International Telegraph and Telephone Consultative Committee.
CCSA. See Common Communication ServerNet adapter (CCSA).
CE. Customer engineer. See service provider.
cell. See storage cell.
central processing unit (CPU). Historically, the main data processing unit of a computer.
The HP NonStop™ servers have multiple cooperating processors rather than a single
CPU. See also processor
.
Challenge Handshake Authentication Protocol (CHAP). An Internet-standard protocol for
verifying encrypted passwords. CHAP is a security protocol that is implemented using
Point-to-Point Protocol (PPP)
. The Compaq TSM Notification Director Application uses
CHAP to maintain security during dial-outs.
channel. An information route for data transmission. See also ServerNet link.
CHAP. See Challenge Handshake Authentication Protocol (CHAP).
character. A sequence of one or more bytes representing a single character; used for the
organization, representation, or control of data. A single-byte character consists of
eight bits that represent a character. A multibyte character uses one or more bytes to
represent a character. A wide character is a fixed-width character wide enough to hold
any coded character supported by an implementation.