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Code.org is a non-profit organization and educational website founded by Hadi and Ali Partovi [1] aimed at K-12 students that specializes in computer science. [2] The website includes free coding lessons and other resources. The initiative also targets schools in an attempt to encourage them to include more computer science classes in the ...
Computer programming or coding is the composition of sequences of instructions, called programs, that computers can follow to perform tasks. [1] [2] It involves designing and implementing algorithms, step-by-step specifications of procedures, by writing code in one or more programming languages. Programmers typically use high-level programming ...
Coding best practices or programming best practices are a set of informal, sometimes personal, rules ( best practices) that many software developers, in computer programming follow to improve software quality. [1] Many computer programs require being robust and reliable for long periods of time, [2] so any rules need to facilitate both initial ...
Website. freecodecamp .org. freeCodeCamp (also referred to as Free Code Camp) is a non-profit educational organization [4] that consists of an interactive learning web platform, an online community forum, chat rooms, online publications and local organizations that intend to make learning software development accessible to anyone.
The first functioning programming languages designed to communicate instructions to a computer were written in the early 1950s. John Mauchly 's Short Code, proposed in 1949, was one of the first high-level languages ever developed for an electronic computer. [8] Unlike machine code, Short Code statements represented mathematical expressions in ...
Code refactoring. In computer programming and software design, code refactoring is the process of restructuring existing computer code —changing the factoring —without changing its external behavior. Refactoring is intended to improve the design, structure, and/or implementation of the software (its non-functional attributes), while ...
C = 101. D = 100. Here the letter A has been assigned 2 bits, B has 1 bit, and C and D both have 3 bits. To make the code a canonical Huffman code, the codes are renumbered. The bit lengths stay the same with the code book being sorted first by codeword length and secondly by alphabetical value of the letter: B = 0. A = 11.
Another concern of coding theory is designing codes that help synchronization. A code may be designed so that a phase shift can be easily detected and corrected and that multiple signals can be sent on the same channel. [citation needed] Another application of codes, used in some mobile phone systems, is code-division multiple access (CDMA ...
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