From 1 to 10

10BaseT, 10Base2, or 10Base5
An implementation of Ethernet IEEE standard to describe the primary characteristics of the cabling system. The 10 signifies 10 Mbits per second. Base indicates that the type of signaling used is baseband. The T at the end means that twisted-pair cable is used. The number (2, 5, or 10) at the end indicates the maximum cable length in hundreds of meters.

2 of 5 Code
A discrete, self-checking code for encoding numeric data only. It requires loose printing tolerances. It is used for warehouse sorting systems, photofinishing envelopes, and sequentially numbered airline tickets. The character set is 0 - 9. All information is encoded in the width of the bars, and the spaces are used only to separate the individual bars.

2D matrix symbology
A symbology that uses both the horizontal and vertical axes to encode data. Each 2D matrix code is created as a matrix of square elements, with each element being either white or black to encode data in a binary code. This allows a very large amount of data, along with extensive error detection and correction codes, to be encoded in a very small amount of space. 2D matrix symbologies cannot be read with a laser scanner and instead are read with a digital imager, which permits very fast data collection by capturing the entire symbol at once instead of scanning each component individually.

2D stacked symbology
A symbology that consists of many linear codes stacked on top of each other, providing the ability to scan across many rows of code at once. The 2D stacked format allows a large amount of information to be condensed into a relatively small amount of space. 2D stacked symbologies can be read with any 2D code imaging device, including laser scanners that are equipped with 2D code scanning capabilities.

3270 or 5250 terminal emulation
An application that allows Intermec devices to emulate an IBM 3270 or 5250 terminal.

Third generation language. The name given to a generation of programming languages that are higher level than 2GL languages. Example of 3GLs are C and Pascal.

Fourth generation language. The name given to a generation of programming languages that are higher level than 3GLs, such as SQL. 4GLs are designed to allow users to develop applications, particularly for the purpose of querying databases and producing reports.