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[1] An 8b/10b code can be implemented in various ways with focus on different performance parameters. One implementation was designed by K. Odaka for the DAT digital audio recorder. [2] Kees Schouhamer Immink designed an 8b/10b code for the DCC audio recorder. [3] The IBM implementation was described in 1983 by Al Widmer and Peter Franaszek. [4 ...
This page lists codes for keyboard characters, the computer code values for common characters, such as the Unicode or HTML entity codes (see below: Table of HTML values"). There are also key chord combinations, such as keying an en dash ('–') by holding ALT+0150 on the numeric keypad of MS Windows computers.
Mac: Opt key codes “Opt” stands for “option,” and you can think of it as the option to add the Mac keyboard symbols you’ve been looking for! Like the alt keys on a Windows keyboard, the ...
The alternate code is used whenever using the primary code would result in bits eifgh being all the same, namely after D.11, D.13 and D.14 when RD=−1, and after D.17, D.18 and D.20 when RD=+1. This ensures that five consecutive identical bits never appear in a normal output symbol.
In telecommunications, 6b/8b is a line code that expands 6-bit codes to 8-bit symbols for the purposes of maintaining DC-balance in a communications system. [1] The 6b/8b encoding is a balanced code-- each 8-bit output symbol contains 4 zero bits and 4 one bits. So the code can, like a parity bit, detect all single-bit errors.
The most commonly encountered are the "XT" ("set 1") scancodes, based on the 83-key keyboard used by the IBM PC XT and earlier. These mostly consist of a single byte; the low 7 bits identify the key, and the most significant bit is clear for a key press or set for a key release. Some additional keys have an E0 (or rarely, E1 or E2) prefix.
The term, Subsidy Password, is used by Motorola and other handset manufacturers to refer to the 8-digit code (or 16-digit code for phones such as the Motorola K1) unlock code necessary to remove the operator lock (also known as subsidy lock) from cell phones.
Key Code Qualifier is an error-code returned by a SCSI device. When a SCSI target device returns a check condition in response to a command , the initiator usually then issues a SCSI Request Sense command .