A Fresh Look At High Definition Tv Programming

Fourth-generation Programming Language ... The natural-language, block-structured mode of the third-generation programming languages improved the process of software development... It became clear that some applications could be developed more rapidly by adding a higher-level programming language and methodology which would generate the equivalent of very complicated 3GL instructions with fewer errors... All 4GLs are designed to reduce programming effort, the time it takes to develop software, and the cost of software development...

Programmer ... The ENIAC programming team, consisting of Kay McNulty, Betty Jennings, Betty Snyder, Marlyn Wescoff, Fran Bilas and Ruth Lichterman were the first regularly working programmers... Many technical innovations in programming — advanced computing technologies and sophisticated new languages and programming tools — have redefined the role of a programmer and elevated much of the programming work done today...

Personal Computer ... Software applications for personal computers include, but are not limited to, word processing, spreadsheets, databases, Web browsers and e-mail clients, digital media playback, games, and myriad personal productivity and special-purpose software applications. Modern personal computers often have connections to the Internet, allowing access to the World Wide Web and a wide range of other resources...

ENIAC ... ENIAC was designed to calculate artillery firing tables for the United States Army's Ballistic Research Laboratory. When ENIAC was announced in 1946 it was heralded in the press as a "Giant Brain"...

Booting ... The computer term boot is short for bootstrap or bootstrap load and derives from the phrase to pull oneself up by one's bootstraps. The usage calls attention to the paradox that a computer cannot run without first loading software but some software must run before any software can be loaded...

Digital Cable ... Digital cable technology has allowed cable providers to compress video channels so that they take up less frequency space and to offer various two-way communication capabilities. This has enabled digital cable providers to offer more channels, video on demand services (without use of a telephone line), telephone services, high speed internet services, and interactive television services...

Colossus Computer ... Colossus was designed by engineer Tommy Flowers with input from Sidney Broadhurst, William Chandler, Allen Coombs and Harry Fensom. at the Post Office Research Station, Dollis Hill to solve a problem posed by mathematician Max Newman at Bletchley Park...

Plankalkül ... "Kalkül" means formal system – the Hilbert-style deduction system is for example originally called "Hilbert-Kalkül", so Plankalkül means "formal system for planning". Description Plankalkül has drawn comparisons to APL and relational algebra...

Duck Typing ... Duck typing is aided by habitually not testing for the type of arguments in method and function bodies, relying on documentation, clear code and testing to ensure correct use. Concept examples Consider the following pseudo-code for a duck-typed language: function calculate (a, b, c) => return (a+b)*c example1 = calculate (1, 2, 3) example2 = calculate (, 2) example3 = calculate ('apples ', 'and oranges, ', 3) print to_string example1 print to_string example2 print to_string example3 In the example, each time the calculate function is called, objects without related inheritance may be used (numbers, lists and strings)...

Ajax (programming) ... Ajax is not a single technology, but a group of technologies. HTML and CSS can be used in combination to mark up and style information...

Microprocessor ... The advent of low-cost computers on integrated circuits has transformed modern society. General-purpose microprocessors in personal computers are used for computation, text editing, multimedia display, and communication over the Internet...

High-level Programming Language ... The first high-level programming language designed for computers was Plankalkül, created by Konrad Zuse... Abstraction penalty While high-level languages are intended to make complex programming simpler, low-level languages often produce more efficient code... Abstraction penalty is the barrier that prevents high-level programming techniques from being applied in situations where computational resources are limited...

Data Type ... Almost all programming languages explicitly include the notion of data type, though different languages may use different terminology... For example, in the Java programming language, the "int" type represents the set of 32-bit integers ranging in value from -2,147,483,648 to 2,147,483,647, as well as the operations that can be performed on integers, such as addition, subtraction, and multiplication... Most programming languages also allow the programmer to define additional data types, usually by combining multiple elements of other types and defining the valid operations of the new data type...

Semantics (computer Science) ... It has close links with other areas of computer science such as programming language design, type theory, compilers and interpreters, program verification and a model checking...

Ad-hoc Polymorphism ... This type of polymorphism is common in object-oriented programming languages, many of which allow operators to be overloaded in a manner similar to functions (see operator overloading)...

Computer ... Conventionally a computer consists of some form of memory, at least one element that carries out arithmetic and logic operations, and a sequencing and control unit that can change the order of operations based on the information that is stored. Peripheral devices allow information to be entered from an external source, and allow the results of operations to be sent out...

Computer Programming ... In general, good programming is considered to be the measured application of all three, with the goal of producing an efficient and evolvable software solution (the criteria for "efficient" and "evolvable" vary considerably)... Another ongoing debate is the extent to which the programming language used in writing computer programs affects the form that the final program takes... History See also: History of programming languages The Antikythera mechanism from ancient Greece was a calculator utilizing gears of various sizes and configuration to determine its operation, which tracked the metonic cycle still used in lunar-to-solar calendars, and which is consistent for calculating the dates of the Olympiads...

Computer Network ... Communications protocols define the rules and data formats for exchanging information in a computer network, and provide the basis for network programming...

Software Bug ... Bugs trigger errors that can in turn have a wide variety of ripple effects, with varying levels of inconvenience to the user of the program. Some bugs have only a subtle effect on the program's functionality, and may thus lie undetected for a long time...

Strong Typing ... Interpretation Most generally, "strong typing" implies that the programming language places severe restrictions on the intermixing that is permitted to occur, preventing the compiling or running of source code which uses data in what is considered to be an invalid way...