Intro IT WGU- Section-Unit 5 Software Starter Set

Application Software

Programs that perform tasks specific to the machine's general purpose (often productivity tools)

System software

Programs that perform tasks that are common to computer systems in general (ex, utility, OS)

Operating system (OS)

Software that manages computer hardware and software resources that provide common services for computer programs.

Operating Software (OS)

Performs all tasks such as file and memory management, input&output, controlling peripheral devices

3 most common OS for desktop/laptops

Mac, windows, linux

4 types of OS

Server OS, mobile OS, PC OS, network OS

Utility Software

Extends and customizes OS's function (ex, play multimedia, decompress or compress files)

Kernal

Essential part of OS, contains components that perform basic functions required by computer installation, ex. File manager, memory manager, device drivers

Device drivers/ middleware

Communicated with peripheral devices, turns generic requests into technical steps to complete task, facilitate communication between software&hardware

Productivity software

Used to complete daily asks like writing documents, managing information, storing data, giving presentations

Examples of word processing software

MS Word, OpenOffice, google docs

User Interface

Allows the user to interact with a computer system.

Command Line Interface (CLI)

An interface that accepts text commands at a prompt, usually for immediate execution with immediate display of output.

Graphical User Interface (GUI)

Type of user interface that allows a user to interact with software using text, graphics, and visual images, such as icons using mouse, keyboard, etc

Superuser (Root)

User with admin credentials.

Directory path

Tells a user where the file is located within the file system, often written as the folder names separated by slashes.

Paging

A memory manager method that creates illusion of more space by rotating between secondary and primary memory when many things are running at once

Examples of spreadsheet software

Ms excel, openoffice calc, google sheets

Examples of database software

Ms access, ms sql server, my sql

Examples of presentation software

MS PowerPoint, OpenOffice's Impress, google slides

Examples of multimedia software

Real player,vlc player, media player

Bespoke software

Is software that is custom or tailor made for a specific task or for a specific company

Hybrid Software

off-the-shelf software, customized to an organization's needs.

Shareware

A copyrighted software that can be sampled before it is purchased.

Freeware

software that is provided without charge, but still protected by end user agreements and copyright laws

public domain software

A program distributed for free without a copyright.

Compilers

programs that translate high-level language programs into executable machine language; does full program at once. Will not run with an error.

Programming languages that use compilers:

Java, C++, C#, go/go lang, visual basic.net

interpreter

Translates high level programming language into machine language one line at a time. If an error is found, terminates and displays error message

Interpreted languages:

Python, PHP, javascript, Ruby, TCL, Perl

Algorithm

a step-by-step procedure for solving a problem. Set of well organized computer-implemented instructions designed to compute solution to problem