Archives : September-2019

JavaScript Definition JavaScript is a programming language commonly used in web development. It was originally developed by Netscape as a means to add dynamic and interactive elements to websites. While JavaScript is influenced by Java, the syntax is more similar to C and is based on ECMAScript, a scripting language developed by Sun Microsystems. JavaScript is a client-side scripting language, which means the source ..

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Web Browser Definition A web browser, or simply “browser,” is an application used to access and view websites. Common web browsers include Microsoft Internet Explorer, Google Chrome, Mozilla Firefox, and Apple Safari. The primary function of a web browser is to render HTML, the code used to design or “mark up” webpages. Each time a browser loads a web page, ..

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FTP Definition Stands for “File Transfer Protocol.” FTP is a protocol designed for transferring files over the Internet. Files stored on an FTP server can be accessed using an FTP client, such as a web browser, FTP software program, or a command line interface. An FTP server can be configured to enable different types of access. For example, an “anonymous FTP” configuration allows anyone ..

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TFTP Definition Stands for “Trivial File Transfer Protocol.” TFTP is a file transfer protocol similar to FTP, but is much more limited. Unlike FTP, TFTP does not support authentication and cannot change directories or list directory contents. Therefore, it is most often used to transfer individual files over a local network. TFTP may also be used to boot a computer system from ..

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Protocol Definition A protocol is a standard set of rules that allow electronic devices to communicate with each other. These rules include what type of data may be transmitted, what commands are used to send and receive data, and how data transfers are confirmed. You can think of a protocol as a spoken language. Each language has ..

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OSI Model Definition The OSI (Open Systems Interconnection) model was created by the ISO to help standardize communication between computer systems. It divides communications into seven different layers, which each include multiple hardware standards, protocols, or other types of services. The seven layers of the OSI model include: The Physical layer The Data Link layer The Network layer ..

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TCP Definition Stands for “Transmission Control Protocol.” TCP is a fundamental protocol within the Internet protocol suite — a collection of standards that allow systems to communicate over the Internet. It is categorized as a “transport layer” protocol since it creates and maintains connections between hosts. TCP compliments the Internet protocol (IP), which defines IP addresses used to identify systems on the ..

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Username Definition A username is a name that uniquely identifies someone on a computer system. For example, a computer may be setup with multiple accounts, with different usernames for each account. Many websites allow users to choose a username so that they can customize their settings or set up an online account. For example, your ..

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Email Definition Email, short for “electronic mail,” is one of the most widely used features of the Internet, along with the web. It allows you to send and receive messages to and from anyone with an email address, anywhere in the world. Email uses multiple protocols within the TCP/IP suite. For example, SMTP is used to send messages, while the POP or IMAP protocols are used ..

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MAC Address Definition Stands for “Media Access Control Address,” and no, it is not related Apple Macintosh computers. A MAC address is a hardware identification number that uniquely identifies each device on a network. The MAC address is manufactured into every network card, such as an Ethernet card or Wi-Fi card, and therefore cannot be changed. Because there are ..

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