Glossary

_ 79

PRN file

An interface for a device driver, this allows software to interact with the device driver using standard input/output 
system calls, which simplifies many tasks. 

Protocol

A convention or standard that controls or enables the connection, communication, and data transfer between two 
computing endpoints.

PS

See PostScript.

PSTN

The Public-Switched Telephone Network (PSTN) is the network of the world's public circuit-switched telephone 
networks which, on industrial premises, is usually routed through the switchboard.

RADIUS

Remote Authentication Dial In User Service (RADIUS) is a protocol for remote user authentication and accounting. 
RADIUS enables centralized management of authentication data such as usernames and passwords using an AAA 
(authentication, authorization, and accounting) concept to manage network access.

Resolution

The sharpness of an image, measured in Dots Per Inch (DPI). The higher the dpi, the greater the resolution.

SMB

Server Message Block (SMB) is a network protocol mainly applied to share files, printers, serial ports, and 
miscellaneous communications between nodes on a network. It also provides an authenticated Inter-process 
communication mechanism.

SMTP

Simple Mail Transfer Protocol (SMTP) is the standard for e-mail transmissions across the Internet. SMTP is a relatively 
simple, text-based protocol, where one or more recipients of a message are specified, and then the message text is 
transferred. It is a client-server protocol, where the client transmits an email message to the server.

SSID

Service Set Identifier (SSID) is a name of a wireless local area network (WLAN). All wireless devices in a WLAN use 
the same SSID in order to communicate with each other. The SSIDs are case-sensitive and have a maximum length of 
32 characters.

Subnet Mask 

The subnet mask is used in conjunction with the network address to determine which part of the address is the network 
address and which part is the host address.

TCP/IP

The Transmission Control Protocol (TCP) and the Internet Protocol (IP); the set of communications protocols that 
implement the protocol stack on which the Internet and most commercial networks run.

TCR

Transmission Confirmation Report (TCR) provides details of each transmission such as job status, transmission result 
and number of pages sent. This report can be set to print after each job or only after failed transmissions.

TIFF

Tagged Image File Format (TIFF) is a variable-resolution bitmapped image format. TIFF describes image data that 
typically come from scanners. TIFF images make use of tags, keywords defining the characteristics of the image that is 
included in the file. This flexible and platform-independent format can be used for pictures that have been made by 
various image processing applications.