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Turbo Basic
PowerBASIC, formerly Turbo Basic, is the brand of several commercial compilers by PowerBASIC Inc. that compile a dialect of the BASIC programming language. There are both MS-DOS and Microsoft Windows, Windows versions, and two kinds of the latter: Console and Windows. The MS-DOS version has a syntax similar to that of QBasic and QuickBASIC. The Windows versions use a BASIC syntax expanded to include many Windows functions, and the statements can be combined with calls to the Windows API. History The first version of the DOS compiler was published as BASIC/Z, the very first interactive compiler for CP/M and MDOS. Later it was extended to MS-DOS/PC DOS and in 1987 Borland distributed it as ''Turbo Basic''. ''Turbo Basic'' was originally created by Robert "Bob" Zale (1945–2012) and bought from him by Borland. When Borland decided to stop publishing it (1989), Zale bought it back from them, renamed it PowerBASIC and set up PowerBASIC Inc. to continue support and development o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Alpha Stage
The software release life cycle is the process of developing, testing, and distributing a software product (e.g., an operating system). It typically consists of several stages, such as pre-alpha, alpha, beta, and release candidate, before the final version, or "gold", is released to the public. Pre-alpha refers to the early stages of development, when the software is still being designed and built. Alpha testing is the first phase of formal testing, during which the software is tested internally using white-box techniques. Beta testing is the next phase, in which the software is tested by a larger group of users, typically outside of the organization that developed it. The beta phase is focused on reducing impacts on users and may include usability testing. After beta testing, the software may go through one or more release candidate phases, in which it is refined and tested further, before the final version is released. Some software, particularly in the internet and technolo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Integrated Development Environment
An integrated development environment (IDE) is a Application software, software application that provides comprehensive facilities for software development. An IDE normally consists of at least a source-code editor, build automation tools, and a debugger. Some IDEs, such as IntelliJ IDEA, Eclipse (software), Eclipse and Lazarus (software), Lazarus contain the necessary compiler, interpreter (computing), interpreter or both; others, such as SharpDevelop and NetBeans, do not. The boundary between an IDE and other parts of the broader software development environment is not well-defined; sometimes a version control system or various tools to simplify the construction of a graphical user interface (GUI) are integrated. Many modern IDEs also have a class browser, an object browser, and a class diagram, class hierarchy diagram for use in object-oriented programming, object-oriented software development. Overview Integrated development environments are designed to maximize progra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Single-precision Floating-point Format
Single-precision floating-point format (sometimes called FP32 or float32) is a computer number format, usually occupying 32 bits in computer memory; it represents a wide dynamic range of numeric values by using a floating radix point. A floating-point variable can represent a wider range of numbers than a fixed-point variable of the same bit width at the cost of precision. A signed 32-bit integer variable has a maximum value of 231 − 1 = 2,147,483,647, whereas an IEEE 754 32-bit base-2 floating-point variable has a maximum value of (2 − 2−23) × 2127 ≈ 3.4028235 × 1038. All integers with seven or fewer decimal digits, and any 2''n'' for a whole number −149 ≤ ''n'' ≤ 127, can be converted exactly into an IEEE 754 single-precision floating-point value. In the IEEE 754 standard, the 32-bit base-2 format is officially referred to as binary32; it was called single in IEEE 754-1985. IEEE 754 specifies additional floating-point types, such as 64-bit base-2 ''doubl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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String (computer Science)
In computer programming, a string is traditionally a sequence of character (computing), characters, either as a literal (computer programming), literal constant or as some kind of Variable (computer science), variable. The latter may allow its elements to be Immutable object, mutated and the length changed, or it may be fixed (after creation). A string is often implemented as an array data structure of bytes (or word (computer architecture), words) that stores a sequence of elements, typically characters, using some character encoding. More general, ''string'' may also denote a sequence (or List (abstract data type), list) of data other than just characters. Depending on the programming language and precise data type used, a variable (programming), variable declared to be a string may either cause storage in memory to be statically allocated for a predetermined maximum length or employ dynamic allocation to allow it to hold a variable number of elements. When a string appears lit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Structured Programming
Structured programming is a programming paradigm aimed at improving the clarity, quality, and development time of a computer program by making specific disciplined use of the structured control flow constructs of selection ( if/then/else) and repetition ( while and for), block structures, and subroutines. It emerged in the late 1950s with the appearance of the ALGOL 58 and ALGOL 60 programming languages, with the latter including support for block structures. Contributing factors to its popularity and widespread acceptance, at first in academia and later among practitioners, include the discovery of what is now known as the structured program theorem in 1966, and the publication of the influential " Go To Statement Considered Harmful" open letter in 1968 by Dutch computer scientist Edsger W. Dijkstra, who coined the term "structured programming". Structured programming is most frequently used with deviations that allow for clearer programs in some particular cases, such as whe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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ALGOL
ALGOL (; short for "Algorithmic Language") is a family of imperative computer programming languages originally developed in 1958. ALGOL heavily influenced many other languages and was the standard method for algorithm description used by the Association for Computing Machinery (ACM) in textbooks and academic sources for more than thirty years. In the sense that the syntax of most modern languages is "Algol-like", it was arguably more influential than three other high-level programming languages among which it was roughly contemporary: FORTRAN, Lisp, and COBOL. It was designed to avoid some of the perceived problems with FORTRAN and eventually gave rise to many other programming languages, including PL/I, Simula, BCPL, B, Pascal, Ada, and C. ALGOL introduced code blocks and the begin...end pairs for delimiting them. It was also the first language implementing nested function definitions with lexical scope. Moreover, it was the first programming language which gave ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Runtime Library
A runtime library is a library that provides access to the runtime environment that is available to a computer program tailored to the host platform. A runtime environment implements the execution model as required for a development environment such as a particular programming language. A runtime library may provide basic program facilities such as for memory management and exception handling. A runtime library is an artifact of the design of the toolchain used to build the program not inherently required by the host operating system or the programming language in which the program is written. The toolset is designed to abstract aspects of the host platform often to simplify tool development. The toolchain builds a program to depend on a runtime library and to use it while the program is running at program run-time. The runtime library may directly implement runtime behavior, but often it is a thin wrapper on top of operating system facilities. For example, some langua ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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BASIC Interpreter
A BASIC interpreter is an Interpreter (computing), interpreter that enables users to enter and run programs in the BASIC programming language, language and was, for the first part of the microcomputer era, the default Application software, application that computers would launch. Users were expected to use the BASIC interpreter to type-in programs, type in programs or to load programs from storage (initially cassette tapes then floppy disks). BASIC interpreters are of historical importance. Microsoft's first product for sale was a BASIC interpreter (Altair BASIC), which paved the way for the company's success. Before Altair BASIC, microcomputers were sold as kits that needed to be programmed in machine code (for instance, the Apple I). During the Altair period, BASIC interpreters were sold separately, becoming the first software sold to individuals rather than to organizations; Apple BASIC was Apple's first software product. After the Altair 8800, MITS Altair 8800, microcomputers w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Portable Executable
The Portable Executable (PE) format is a file format for executables, object file, object code, Dynamic-link library, dynamic-link-libraries (DLLs), and binary files used on 32-bit and 64-bit Microsoft Windows, Windows operating systems, as well as in UEFI environments. It is the standard format for executables on Windows NT-based systems, including files such as .exe, .dll, .sys (for system drivers), and .mui. At its core, the PE format is a structured data container that gives the Windows operating system loader everything it needs to properly manage the Executable, executable code it contains. This includes references for Library (computer science)#Dynamic linking, dynamically linked libraries, tables for importing and exporting Application programming interface, APIs, resource management data and thread-local storage (TLS) information. According to the Unified Extensible Firmware Interface, Unified Extensible Firmware Interface (UEFI) specification, the PE format is also the a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |