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Computer Terms asked in recent Exams Part 4

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Ethernet
Ethernet is a physical and data link layer technology for local area networks (LANs). Robert Metcalfe and David Boggs was the inventor of Ethernet. It is the name of the most commonly used LAN today. A LAN (Local Area Network) is a network of computers that covers a small area like a room, an office, a building or a campus.

Personal Area Network
A personal area network (PAN) is the interconnection of information technology devices within the range of an individual person, typically within a range of 10 meters. Personal area networks can be constructed with cables or be wireless. You can use these networks to transfer files including email and calendar appointments, digital photos and music.

HTTP
The Hypertext Transfer Protocol (HTTP) is an application protocol for distributed, collaborative, and hypermedia information systems. HTTP is the foundation of data communication for the World Wide Web.

SWIFT Programming Language
Swift is a general-purpose, multi-paradigm, compiled programming language developed by Apple Inc. for iOS, macOS, watchOS, tvOS, and Linux.

SQL 
SQL stands for Structured Query Language, SQL lets you access and manipulate databases. It is an ANSI (American National Standards Institute) standard. SQL consists of a data definition language, data manipulation language, and data control language.

Radix or Base
The radix or base is the number of unique digits, including zero, used to represent numbers in a positional numeral system. Following are Radix of some widely used number systems:
Decimal Number System: Radix-10
Binary Number System: Radix-2
Octal Number System: Radix-8
Hexadecimal Number System: Radix-16

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