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History Of Delphi (software)
This page details the history of the programming language and software product Delphi (software), Delphi. Roots and birth Delphi evolved from Borland's Turbo Pascal for Windows, itself an evolution with Windows support from Borland's Turbo Pascal and Borland Pascal with Objects, very fast 16-bit native-code MS-DOS compilers with their own sophisticated integrated development environment (IDE) and Text user interface, textual user interface toolkit for DOS (Turbo Vision). Early Turbo Pascal (for MS-DOS) was written in a dialect of the Pascal (programming language), Pascal programming language; in later versions support for Object (computer science), objects was added, and it was named Object Pascal. Delphi was originally one of many codenames of a pre-release development tool project at Borland. Borland developer Danny Thorpe suggested the ''Delphi'' codename in reference to the Oracle at Delphi. One of the design goals of the product was to provide database connectivity to pro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Borland
Borland Software Corporation was a computer technology company founded in 1983 by Niels Jensen, Ole Henriksen, Mogens Glad and Philippe Kahn. Its main business was the development and sale of software development and software deployment products. Borland was first headquartered in Scotts Valley, California, then in Cupertino, California and then in Austin, Texas. In 2009 the company became a full subsidiary of the British firm Micro Focus International plc. History The 1980s: Foundations Borland Ltd. was founded in August 1981 by three Danish citizens, Niels Jensen, Ole Henriksen, and Mogens Glad, to develop products like Word Index for the CP/M operating system using an off-the-shelf company. However, the response to the company's products at the CP/M-82 show in San Francisco showed that a U.S. company would be needed to reach the American market. They met Philippe Kahn, who had just moved to Silicon Valley, and who had been a key developer of the Micral. The three D ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rapid Application Development
Rapid application development (RAD), also called rapid application building (RAB), is both a general term for adaptive software development approaches, and the name for James Martin's method of rapid development. In general, RAD approaches to software development put less emphasis on planning and more emphasis on an adaptive process. Prototypes are often used in addition to or sometimes even instead of design specifications. RAD is especially well suited for (although not limited to) developing software that is driven by user interface requirements. Graphical user interface builders are often called rapid application development tools. Other approaches to rapid development include the adaptive, agile, spiral, and unified models. History Rapid application development was a response to plan-driven waterfall processes, developed in the 1970s and 1980s, such as the Structured Systems Analysis and Design Method (SSADM). One of the problems with these methods is that they we ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DbExpress
dbExpress is Embarcadero's data driver architecture that replaced the older Borland Database Engine. First released with Borland Delphi 6 and C++Builder 6, it has gone through several iterations itself, the latest being shipped with Embarcadero Delphi and C++ Builder RX 10 Seattle. It provides unidirectional database access, that means you can traverse data obtained from a database table only in the forward direction. You cannot go back, unless you add other layers. This makes dbExpress a very fast access technology, compared to many others. Updates has to be done with other in the IDE integrated components as the "DatasetProvider", which assembles automatically appropriate Update-Statements ( in SQL ). Embarcadero supplies drivers for many databases, including Oracle, Firebird, InterBase, IBM Db2, Informix, SQL Server, MySQL and ODBC. Additional drivers are available from third parties. Starting with Delphi 2007 (dbExpress 4 generation) a tracing driver is included as well which ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Visual Component Library
The Visual Component Library (VCL) is a visual component-based object-oriented framework for developing the user interface of Microsoft Windows applications. It is written in Object Pascal. History The VCL was developed by Borland for use in, and is tightly integrated with, its Delphi and C++Builder RAD tools. In 1995 Borland released Delphi, its first release of an Object Pascal IDE and language. Up until that point, Borland's Turbo Pascal for DOS and Windows was largely a procedural language, with minimal object-oriented features, and building UI frameworks with the language required using frameworks like Turbo Vision and Object Windows Library. OWL, a similar framework to MFC, required writing code to create UI objects. A key aim of the VCL combined with the Delphi language was to change the requirements of building a user interface. (For context, the Delphi variant of Pascal had a number of innovative object-oriented features, such as properties and runtime t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Borland Kylix
Borland Kylix is a compiler and integrated development environment (IDE) formerly sold by Borland, but later discontinued. It is a Linux software development environment based on Borland Delphi and Borland C++ Builder, which runs under Microsoft Windows. Continuing Delphi's classical Greek theme, Kylix is the name for an ancient Greek drinking cup. The closest supported equivalent to Kylix is the free Lazarus IDE package, designed to be code-compatible with Delphi. As of 2010 the project has been resurrected in the form of Delphi cross compiler for Mac and Linux, as shown in the Embarcadero's Delphi and C++ Builder roadmap. As of September 2011 with Kylix discontinued the framework for cross-platform development by Embarcadero is FireMonkey. Features Kylix supports application programming using Object Pascal and C++, and is particularly suited to the development of command line utilities and (especially) GUI applications, but not well suited to low-level programming, such a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Protocol (object-oriented Programming)
In object-oriented programming, an interface or protocol type is a data type describing a set of method signatures, the implementations of which may be provided by multiple classes that are otherwise not necessarily related to each other. A class which provides the methods listed in a protocol is said to ''adopt'' the protocol, or to ''implement'' the interface. If objects are fully encapsulated then the protocol is the only way in which they may be accessed by other objects. For example, in Java, the Comparable interface specifies a method compareTo() which implementing classes must implement. This means that a sorting method, for example, can sort a collection of any objects of types which implement the Comparable interface, without having to know anything about the inner nature of the class (except that two of these objects can be compared by means of compareTo()). Some programming languages provide explicit language support for protocols ( Ada, C#, D, Dart, Delphi, Go, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reference Counting
In computer science, reference counting is a programming technique of storing the number of references, pointers, or handles to a resource, such as an object, a block of memory, disk space, and others. In garbage collection algorithms, reference counts may be used to deallocate objects that are no longer needed. Advantages and disadvantages The main advantage of the reference counting over tracing garbage collection is that objects are reclaimed ''as soon as'' they can no longer be referenced, and in an incremental fashion, without long pauses for collection cycles and with clearly defined lifetime of every object. In real-time applications or systems with limited memory, this is important to maintain responsiveness. Reference counting is also among the simplest forms of memory management to implement. It also allows for effective management of non-memory resources such as operating system objects, which are often much scarcer than memory (tracing garbage collection system ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CORBA
The Common Object Request Broker Architecture (CORBA) is a standard defined by the Object Management Group (OMG) designed to facilitate the communication of systems that are deployed on diverse platforms. CORBA enables collaboration between systems on different operating systems, programming languages, and computing hardware. CORBA uses an object-oriented model although the systems that use the CORBA do not have to be object-oriented. CORBA is an example of the distributed object paradigm. Overview CORBA enables communication between software written in different languages and running on different computers. Implementation details from specific operating systems, programming languages, and hardware platforms are all removed from the responsibility of developers who use CORBA. CORBA normalizes the method-call semantics between application objects residing either in the same address-space (application) or in remote address-spaces (same host, or remote host on a network). Versio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Java (software Platform)
Java is a set of computer software and specifications developed by James Gosling at Sun Microsystems, which was later acquired by the Oracle Corporation, that provides a system for developing application software and deploying it in a cross-platform computing environment. Java is used in a wide variety of computing platforms from embedded devices and mobile phones to enterprise servers and supercomputers. Java applets, which are less common than standalone Java applications, were commonly run in secure, sandboxed environments to provide many features of native applications through being embedded in HTML pages. Writing in the Java programming language is the primary way to produce code that will be deployed as byte code in a Java virtual machine (JVM); byte code compilers are also available for other languages, including Ada, JavaScript, Python, and Ruby. In addition, several languages have been designed to run natively on the JVM, including Clojure, Groovy, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
BackOffice
Microsoft BackOffice Server is a discontinued computer software package featuring Windows NT Server and other Microsoft server products that ran on NT Server. It was marketed during the 1990s and early 2000s for use in branch operations and for small businesses to run their back office operations. The small business edition of BackOffice Server was released for versions 4.0 and 4.5. In 2000 it was spun off from the "BackOffice" brand, becoming a variant of Windows Server branded as Windows Small Business Server. BackOffice Server itself was discontinued on October 1, 2001. Software included Besides Windows NT Server, versions of BackOffice Server suite also included Microsoft SQL Server, Microsoft SNA Server, Microsoft Systems Management Server (SMS), Microsoft Mail Server or Microsoft Exchange Server, Microsoft Proxy Server or Microsoft Internet Security and Acceleration (ISA) Server, and Internet Information Services (IIS). The "Small Business" editions omitted SNA Se ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
