D322 - Introduction to IT - Final Exam Study Guide

D322 - Introduction to IT - Final Exam Study Guide 16 studiers today 4.7 (3 reviews) Students also studied Terms in this set (129) Western Governors UniversityD 333 Save Intro to IT - WGU Section 2 Starter S...55 terms anna_striedel1 Preview WGU D322 Introduction to IT Teacher 255 terms Jovoni__Preview

Intro to IT Section 4: Computer Net...

89 terms anna_striedel1 Preview WGU C 255 term rwd Practice questions for this set Learn1 / 7Study using Learn A device that connects multiple networks together; routes packets to their next location in order to efficiently reach their destination.AdministrationAn administrator is in charge of some portion of the IT infrastructure Network administratoroversees all aspects of the computer network. The network administrator's duties include physically laying down cable, making connections, and working with the network hardware (for instance, routers and switches).Choose an answer 1Router2Server 3Hub4Switch Don't know?

Database administratorfocus on the design, development, and support of database management systems (DBMSs). Tasks will include installation, maintenance, performance analysis, and troubleshooting as with the other administrative areas Security administratorinstall, configure, and administer appropriate firewall security to protect the organization's systems and to work proactively against such intrusions.Web administratoralso known as a webmaster, but more precisely referred to as a web server administrator.This role is responsible for maintaining web storage, which differs from the development of web storage.Specifically, the web administrator must install, configure, maintain, secure, and troubleshoot the web server.Define Information Technology:IT is a term used to describe several aspects: the task of gathering data and processing it into information, the ability to disseminate information using technology, the technology itself that permits these tasks, and the collection of people who are in charge of maintaining the IT infrastructure (the computers, the networks, and the operating systems). Generically, we will consider IT to be the technology used in creating, maintaining, and making information accessible. In other words, IT combines people with computing resources, software, data, and computer networks.Information technologydescribes the technology infrastructure that may support information systems, although Information Technology could also support many other types of systems (e.g., telecommunications systems). Information Technology includes hardware, software, networks, and databases that work together to allow an organization to manage data and information.

A computer performs four operations:input, processing, output, storage

Computer structure:

CPUthe device that not only executes your programs' instructions, but also commands the various components in the computer.Memorystores the program(s) being executed and the data that each program is Updated 2/4/2023 using.I/Oincludes all peripheral devices (input, output, storage, network) where storage consists of the long-term storage devices (disk drives, tape).

busthe device that permits information to move between each component system unitCritical component of all computer based systems; consists of most of the hardware the computer needs in order to run; comes in a variety of shapes and sizes.Dynamic RAM (DRAM)typically called main memory Static RAM (SRAM)cache memory and registers Read only memory (ROM)retains its contents indefinitely BIOSBasic Input Output System Hard drive- store data even when the computer is turned off Peripheral devicescomponents that are located outside the system unit yet are connected physically or wirelessly to it HardwareThe physical components of a computer.Softwarethe programs and other operating information used by a computer.NetworkA collection of computers and resources connected by various media so they can communicate with each other UsersThe people who use the computer system 1st generationvacuum tubes 2nd generationTransistors 3rd generationintegrated circuits 4th generationmicroprocessor Machine languageThe lowest-level programming languages understood by computers, representing instructions in binary (0s and 1s) Assembly languagespecified instructions using words High level languageis a programming language such as C, FORTRAN, or Pascal that enables a programmer to write programs that are more or less independent of a particular type of computer

Compilerrequires that the components of the software all be defined before compilation can begin to run all at once. Examples are C, C++, C#.Interpreted languageruns inside of a special environment called the interpreter, the interpreter converts that command to machine language and executes it line by line.Examples are Perl and Python.Compiled LanguageTranslates the entire program, creating an executable program which can be run at a later time Interpreted LanguageTakes the most recently entered instruction, translates it into machine language, and executes it C++Uses a vocabulary and a set of rules for instructing a computer to perform certain tasks.PythonAn easy to use programming language that does not require a compiler for debugging.JavaScriptA programming language designed to enable user engagement with dynamic elements on web pages TCLOften used in rapid prototyping and the creation of GUIs, Tcl is a simple and compact language but is also very powerful.PHPAn all-purpose language that is especially suitable for web development.Computer networkComputers connected together for the purpose of sharing information and resources Bandwidthtransfer rate permissible over the media, described as some number of bits per second (bps) Network HubDevice that connects multiple computers together.*Broadcasts to all connected devices, even if message is intended for just one.Network switchmore functional connection than a hub, its purpose is to only send transmissions to a specific, intended computer RouterA device that connects multiple networks together; routes packets to their next location in order to efficiently reach their destination.Wireless access pointconnected to a hub, a switch, or a router. This device then sends out a wireless signal so computers on the network can connect without a cable Radio wavesprovide access to networks over long distances IP addressa series of numbers that indicates a specific internet location Servercomputer that takes requests and responds with the requested information