Справочник Пользователя для National Instruments Image Acqusition Software NI-IMAQdx

default setting

A default parameter value recorded in the driver. In many cases, the default 
input of a control is a certain value (often 0).

DLL

Dynamic Link Library—A software module in Microsoft Windows 
containing executable code and data that can be called or used by Windows 
applications or other DLLs; functions and data in a DLL are loaded and 
linked at run time when they are referenced by a Windows application or 
other DLLs.

driver

Software that controls a specific hardware device, such as a camera.

endianness

The convention describing the ordering of bytes in memory or the sequence 
in which bytes are transmitted.

external trigger

A voltage pulse from an external source that triggers an event such as 
A/D conversion.

FIFO

First-In First-Out—The first data stored in the memory buffer is the first 
data sent to the acceptor. FIFOs are used on image acquisition devices to 
temporarily store incoming data until that data can be retrieved.

function

A set of software instructions executed by a single line of code that may 
have input and/or output parameters and returns a value when executed.

gamma

The nonlinear change in the difference between the video signal’s 
brightness level and the voltage level needed to produce that brightness.

Gigabit Ethernet

Describes technologies which transmit Ethernet packets at a rate of a 
gigabit per second.