WGU- D322 Intro to IT

WGU- D322 Intro to IT Leave the first rating Students also studied Terms in this set (119) Science Computer Science Save WGU C182 Introduction to IT 230 terms kbsing76Preview WGU D322 - Introduction to IT Secti...41 terms Mira_PakPreview Section 6 - Data Starter Set 36 terms anna_striedel1 Preview C182 Pr 65 terms Msj Practice questions for this set Learn1 / 7Study using Learn No requirements for infrastructure deployment, software development or delivery, maintenance or operations.Follows a fixed monthly usage billing.Requires minimal input from users.AdministrationAn administrator is in charge of some portion of the IT infrastructure.Choose an answer 1Administration2Software as a Service (SaaS) Benefits 3CPU (Central Processing Unit)4Web administrator (webmaster) Don't know?

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).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 administrator (webmaster)also known as a webmaster, but more precisely referred to as a web server administrator. This role is responsible for maintaining web storages, which differs from the development of web storage. Specifically, the web administrator must install, configure, maintain, secure, and troubleshoot the web server.Define Information TechnologyIT 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 operationsIPOS Input Processing Output Storage Parts of the CPUALU Control Unit Registers MemorySCRAM DRAM ROM I/O SubsystemInput Devices Output Devices Storage Devices

Computer structure{CPU (ALU, Control Unit, Registers) System Bus Memory(SCRAM, DRAM, ROM)} I/O Bus {I/O Subsystem (Input Devices, Output decides, Storage Devices)} CPU (Central Processing Unit)is the 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 using.short-term and long-term storage.I/O subsystemsubsystem includes all peripheral devices (input, output, storage, network) where storage consists of the long-term storage devices (disk drives, tape).busis the device that permits information to move between each component.The system unitis a core feature of notebooks, tablets, smartphones, and other types of computers; therefore, it comes in a variety of shapes and sizes. The system unit contains various components that enable the PC system to run programs and complete other important functions. Various different types of computers are likely to have many of the same components. These include the case, which is a protective covering, internal bays and slots that grip the internal components, buses, which are the circuitry and electrical channels that enable communication among the electronic components, bays (external openings) and ports that connect peripherals, and lights and indicators that show the computer is turned on.Dynamic RAM (DRAM)which is typically called main memory Static RAM (SRAM)which is cache memory and registers Read only memory (ROM)which retains its contents indefinitely BIOSBasic Input Output System Hard drivestore 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 the computer SoftwareThe programs and other operating information used by the 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

Generations of Machines1st generation - vacuum tubes 2nd generation - transistors 3rd generation - integrated circuits 4th generation - microprocessors 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.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 networkcollection of computers and computer resources (e.g., printers, file servers) connected in such a way that the computers can communicate with each other and their resources Bandwidthtransfer rate permissible over the media, described as some number of bits per second (bps).Network hubdevice that connects multiple computers together Network switchmore functional connection than a hub, its purpose is to only send transmissions to a specific, intended computer.Routerdevice that connects multiple networks together