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HP-GL, short for Hewlett-Packard Graphics Language and often written as HPGL, is a printer control language created by Hewlett-Packard (HP). HP-GL was the primary printer control language used by HP plotters. [1] It was introduced with the plotter HP-9872 in 1977 and became a standard for almost all
Download as PDF; Printable version; In other projects ... and programming environments often have their own conventions and standards for the meanings and values of ...
[10] [7] The last pocket calculator supporting RPL, the HP 50g, was discontinued in 2015. [ 11 ] [ 12 ] [ 13 ] However, multiple emulators that can emulate HP's RPL calculators exist that run on a range of operating systems, and devices, including iOS and Android smartphones.
Users confuse "PC" with "personal computer", "LOAD" with some action someone might do to that computer, and "LETTER" with an alphabet letter or a piece of physical mail (outside the United States and Canada standard paper is A4 size and users may not even know "LETTER" is a paper size).
PCL 5 was released on the HP LaserJet III [2] in March 1990, adding Intellifont font scaling (developed by Compugraphic, now part of Agfa), outline fonts and HP-GL/2 (vector) graphics. PCL 5e (PCL 5 enhanced) was released on the HP LaserJet 4 [ 2 ] in October 1992 and added bi-directional communication between the printer and the PC and Windows ...
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The American mathematician Richard Hamming pioneered this field in the 1940s and invented the first error-correcting code in 1950: the Hamming (7,4) code. [5] FEC can be applied in situations where re-transmissions are costly or impossible, such as one-way communication links or when transmitting to multiple receivers in multicast.
Before PDF version 1.5, the table would always be in a special ASCII format, be marked with the xref keyword, and follow the main body composed of indirect objects. Version 1.5 introduced optional cross-reference streams, which have the form of a standard stream object, possibly with filters applied. Such a stream may be used instead of the ...