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The physical network topology can be directly represented in a network diagram, as it is simply the physical graph represented by the diagrams, with network nodes as vertices and connections as undirected or direct edges (depending on the type of connection). [3] The logical network topology can be inferred from the network diagram if details ...
The IBM 3270 is a family of block oriented [1] display and printer computer terminals introduced by IBM in 1971 [2] and normally used to communicate with IBM mainframes. The 3270 was the successor to the IBM 2260 display terminal. [3] Due to the text color on the original models, these terminals are informally known as green screen terminals.
An ICD is the umbrella document over the system interfaces; examples of what these interface specifications should describe include: The inputs and outputs of a single system, documented in individual SIRS (Software Interface Requirements Specifications) and HIRS (Hardware Interface Requirements Specifications) documents, would fall under "The Wikipedia Interface Control Document".
The Line Printer Daemon protocol/Line Printer Remote protocol (or LPD, LPR) is a network printing protocol for submitting print jobs to a remote printer. The original implementation of LPD was in the Berkeley printing system in the BSD UNIX operating system; the LPRng project also supports that protocol.
The Monochrome Display Adapter (MDA, also MDA card, Monochrome Display and Printer Adapter, MDPA) is IBM's standard video display card and computer display standard for the IBM PC introduced in 1981. The MDA does not have any pixel-addressable graphics modes, only a single monochrome text mode which can display 80 columns by 25 lines of high ...
A monochrome printer can only produce monochrome images, with only shades of a single color. Most printers can produce only two colors, black (ink) and white (no ink). With half-tonning techniques, however, such a printer can produce acceptable grey-scale images too A color printer can produce images of multiple colors.
CUPS allows users to send different data to the CUPS server and have that data converted into a format the printer will understand and be able to print. CUPS can process a variety of data formats on the print server. It converts the print-job data into the final language/format of the printer via a series of filters.
IBM defined two sets of printer commands, and therefore two sets of printer control characters are available. The first set of commands did not send any data to be printed to the printer but only a paper movement instruction. These are called immediate commands. The second set of commands send data to be printed on the current line plus a paper ...