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A program in Karel is used to control a simple robot named Karel that lives in an environment consisting of a grid of streets (left-right) and avenues (up-down). Karel understands five basic instructions: move (Karel moves by one square in the direction he is facing), turnLeft (Karel turns 90 ° left), putBeeper (Karel puts a beeper on the square he is standing at), pickBeeper (Karel lifts a ...
copy letter.txt [destination] Files may be copied to device files (e.g. copy letter.txt lpt1 sends the file to the printer on lpt1. copy letter.txt con would output to stdout, like the type command. Note that copy page1.txt+page2.txt book.txt will concatenate the files and output them as book.txt. Which is just like the cat command). It can ...
the lists foo and bar are (a b c) and (x b c) respectively. However, the tail (b c) is the same structure in both lists. It is not a copy; the cons cells pointing to b and c are in the same memory locations for both lists. Sharing structure rather than copying can give a dramatic performance improvement.
This is a list of TCP and UDP port numbers used by protocols for operation of network applications. The Transmission Control Protocol (TCP) and the User Datagram Protocol (UDP) only need one port for bidirectional traffic. TCP usually uses port numbers that match the services of the corresponding UDP implementations, if they exist, and vice versa.
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Said by some to be the origin of the game command and title Simon says. [27] Cicero pro domo sua Cicero's speech in 57 BC to regain his confiscated house: Said of someone who pleads cases for their own benefit; see List of Latin phrases (P) § pro domo: circa (c.) or (ca.) around: In the sense of "approximately" or "about". Usually used of a date.
Carl Sassenrath (born 1957 in California) is an architect of operating systems and computer languages.He brought multitasking to personal computers in 1985 with the creation of the Amiga Computer operating system kernel, [1] and he is the designer of the REBOL computer language, REBOL/IOS collaboration environment, the Safeworlds AltME private messaging system, and other products.
This is a complete list of all Wikipedia bots listed by name, regardless of status, purpose or method. See also Special:ListUsers/bot