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  2. End-of-file - Wikipedia

    en.wikipedia.org/wiki/End-of-file

    Instead, programs recognize that the source is a terminal (or other "character device") and interpret a given reserved character or sequence as an end-of-file indicator; most commonly, this is an ASCII Control-Z, code 26.

  3. Trie - Wikipedia

    en.wikipedia.org/wiki/Trie

    [24]: 3 The skip number 1 at node 0 corresponds to the position 1 in the binary encoded ASCII where the leftmost bit differed in the key set . [ 24 ] : 3-4 The skip number is crucial for search, insertion, and deletion of nodes in the Patricia tree, and a bit masking operation is performed during every iteration.

  4. ASCII - Wikipedia

    en.wikipedia.org/wiki/ASCII

    ASCII (/ ˈ æ s k iː / ⓘ ASS-kee), [3]: 6 an acronym for American Standard Code for Information Interchange, is a character encoding standard for electronic communication. . ASCII codes represent text in computers, telecommunications equipment, and other devic

  5. Substitute character - Wikipedia

    en.wikipedia.org/wiki/Substitute_character

    Historically, under PDP-6 monitor, [2] RT-11, VMS, and TOPS-10, [3] and in early PC CP/M 1 and 2 operating systems (and derivatives like MP/M) it was necessary to explicitly mark the end of a file (EOF) because the native filesystem could not record the exact file size by itself; files were allocated in extents (records) of a fixed size, typically leaving some allocated but unused space at the ...

  6. Control character - Wikipedia

    en.wikipedia.org/wiki/Control_character

    The interpretation of the control key with non-ASCII ("foreign") keys also varies between systems. Control characters are often rendered into a printable form known as caret notation by printing a caret (^) and then the ASCII character that has a value of the control character plus 64. Control characters generated using letter keys are thus ...

  7. Character encoding - Wikipedia

    en.wikipedia.org/wiki/Character_encoding

    Punched tape with the word "Wikipedia" encoded in ASCII.Presence and absence of a hole represents 1 and 0, respectively; for example, W is encoded as 1010111.. Character encoding is the process of assigning numbers to graphical characters, especially the written characters of human language, allowing them to be stored, transmitted, and transformed using computers. [1]

  8. cal (command) - Wikipedia

    en.wikipedia.org/wiki/Cal_(command)

    cal is a command-line utility on a number of computer operating systems including Unix, Plan 9, Inferno and Unix-like operating systems such as Linux that prints an ASCII calendar of the given month or year. If the user does not specify any command-line options, cal will print a calendar of the current month.

  9. File Transfer Protocol - Wikipedia

    en.wikipedia.org/wiki/File_Transfer_Protocol

    Telnet (TYPE A T and TYPE E T) – the file contains Telnet (or in other words, ASCII C0) carriage control characters (CR, LF, etc) ASA (TYPE A A and TYPE E A) – the file contains ASA carriage control characters; These formats were mainly relevant to line printers; most contemporary FTP clients/servers only support the default format control ...