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Type Network

Below is a list of the most common types of computer networks in order of scale. Personal Area Network (PAN) A personal area network (PAN) is a computer network used for communication among computer devices close to one person. Some examples of devices that are used in a PAN are printers, fax machines, telephones, PDAs and scanners. The reach of a PAN is typically about 20-30 feet (approximately 6-9 meters), but this is expected to increase with technology improvements. Personal area networks may be wired with computer buses such as USB and FireWire. A wireless personal area network (WPAN) can also be made possible with network technologies such as IrDA and Bluetooth. Local Area Network (LAN) This is a network covering a small geographic area, like a home, office, or building. Current LANs are most likely to be based on Ethernet technology. For example, a library may have a wired or wireless LAN for users to interconnect local devices (e.g., printers and servers) and to connect ...

Object Oriented Programming(OOP)

Fundamental concepts OOP, found in the strong majority of definitions of OOP. They are the following: Class Defines the abstract characteristics of a thing (object), including the thing's characteristics (its attributes , fields or properties ) and the thing's behaviors (the things it can do , or methods , operations or features ). One might say that a class is a blueprint or factory that describes the nature of something. For example, the class Dog would consist of traits shared by all dogs, such as breed and fur color (characteristics), and the ability to bark and sit (behaviors). Classes provide modularity and structure in an object-oriented computer program. A class should typically be recognizable to a non-programmer familiar with the problem domain, meaning that the characteristics of the class should make sense in context. Also, the code for a class should be relatively self-contained (generally using encapsulation). members . Collectively, the properties and metho...

Anti Virus Gadungan

Jika anda menanyakan, virus apa yang merajai dunia dan Indonesia pada paruh tahun ke dua 2008. Jangan terkejut jika jawabannya adalah kuda hitam Antivirus Gadungan yang banyak disebut dengan istilah Rogue Scanner, Advance Antivirus atau Scamware. Jika anda bingung apa yang Vaksincom bicarakan, bahasa yang lebih membumi dan membuat pengguna komputer sadar adalah Antivirus XP 2008, Antivirus XP 2009, IE Defender, Internet Antivirus, SpyHeal, SpySheriff yang kalau diteruskan daftarnya akan cukup membuat pegal baik mengetik maupun membacanya. Jumlah Antivirus Gadungan saat ini yang terdeteksi adalah 304 antivirus gadungan. Data yang dikumpulkan statistik virus Vaksincom didukung data statistik Norman Network Protector (NNP) yang di instal di beberapa ISP mengkonfirmasikan hal ini. Dapat dipastikan ribuan komputer di Indonesia yang terkoneksi ke internet terinfeksi virus ini dan celakanya virus ini memiliki genetik Spyware dan memiliki kemampuan mengupdate dirinya sendiri, sehingga unt...

Delphi

Delphi is a software development environment for Microsoft Windows applications. It has always supported development of native Windows applications in the Delphi programming language, a further development of Object Pascal. Delphi 2007, the eleventh version, also supports development in C++ for the 32 bit Microsoft Windows platform, and in Delphi and C# for the Microsoft .NET platform. Delphi 2009, the twelfth and latest version released in September 2008, adds support for Unicode to the VCL and IDE as well as new compiler features (Generics and Anonymous methods) and enhances the IDE with the first version of a resource manager and overhauled project manager as well as user definable build configurations. Delphi is mainly used for the development of desktop and enterprise database applications, but it is a general-purpose software development tool suitable for most software projects. With several included libraries, web applications are possible as well.

Programmer

A programmer is someone who writes computer software. The term computer programmer can refer to a specialist in one area of computer programming or to a generalist who writes code for many kinds of software. One who practices or professes a formal approach to programming may also be known as a programmer analyst. A programmer's primary computer language (Java, Delphi, C++, etc.) is often prefixed to the above titles, and those who work in a web environment often prefix their titles with web. A programmer is not a software developer, software engineer, computer scientist, or software analyst. These professions typically refer to individuals possessing programming skills as well as other software engineering skills. For this reason, the term programmer is sometimes considered an insulting or derogatory oversimplification of these other professions.