p. 8
Item
Description
Explanation
CSR
Control and Status
Register
Associated with PCI memory space allocation
CVR
Cockpit Voice Recorder
An aircraft system for recording sound on the flightdeck
CVS
Concurrent Versioning
System
A version control system
Cygwin
A collection of software tools to let Microsoft Windows
operate like a UNIX system.
1.2.5
D
Item
Description
Explanation
DAT
Digital Audio
Tape
A type of magnetic tape that uses a scheme called helical scan to
record data. A DAT cartridge is slightly larger than a credit card in
width and height and contains a magnetic tape that can hold from
2 to 24 gigabytes of data.
DC
Direct Current
Electrical current that flows in one direction only
DI
Digital Input
Input signal (in digital format) in the interface and computing
systems
DIAMOND
DIAgnostic
MONitoring and
Display
The simulator real-time diagnostic and health warning system
DID
Device IDentity
Hardware Confidence Test utility
DiGIT
Distributed
Graphical
Interface Tool
DiGIT is a Graphical User Interface (GUI) tool that provides a
touch-screen orientated Human Machine Interface (HMI). The
prime use of DiGIT is the IOS.
DIMM
Dual In-line
Memory Module
A small circuit board that holds memory chips. The DIMM has a
64-bit path compared with the SIMM (Single In-line Memory
Module) has a 32-bit path
DIP
Dual In-Line
Package
A type of Integrated circuit housed in a rectangular casing with
two rows of connecting pins on either side
DLL
Dynamic Link
Library
A library of executable functions or data that can be used by a
Windows application.
DMA
Direct Memory
Access
Transferring data from main memory to a device without passing
it through the CPU.
DME
Distance
Measuring
Equipment
Aircraft navigation system that provides distance information.