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Appendix D Glossary
PocketPro 100S Administrator’s Guide -- Document #40165-110 Rev. A D-5
DLC/LLC
A protocol used for printing on Windows for Workgroups, LAN Manager, and other network operating systems;
being phased out in favor of newer protocols like Windows 95 Peer-to-Peer direct mode IPX and TCP/IP.
DMA
Direct Memory Access is high performance computer architecture in which data is transferred in large blocks
between the processor's memory and an external device without any processor intervention.
DOS
Disk Operating System now commonly refers to the PC operating system developed by Microsoft that is
officially called MS-DOS.
Download
The process of copying firmware or software from one computer to another computer or other device on the
network (such as a print server).
Driver
Low-level software that interfaces a hardware device such as a printer to the computer's operating system. The
driver allows programs running on the computer to access the hardware device in a relatively simple manner.
Duplex Printing
Printing on both sides of a sheet of paper.
EIO
The internal bus used by the latest HP printers like the HP LaserJet 4000, 5000, and 8000 series printers.
Escape Sequence
A series of characters, usually starting with the ESCAPE character (ASCII 27) that is used to control a printer or
print job.
Ethernet
The most popular Local Area Network standard, which was developed originally by Xerox, Intel, and Digital
Equipment Corporation. It operates at a speed of 10 million bits per second.