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WGU C182 Terms Of Introduction to IT
1.Application Software: Programs end users run to accomplish tasks.
2.Productivity Software: Application software used to aid in
productivity. I.E. Presentation software, word processor, spreadsheets.
3.Internet Usage Software: Email, FTP client, web browser
4.System Software: Consists of programs that make up the OS and
directly support system itself.**Includes services or DAEMONS
5.Server Software: Works with hardware to provide network service.
6.Local Application: Software stored on an individual computer.
7.Intranet: A LAN that uses IP. Used to communicate within organization.
8.Cloud Computing: Allows organization to access resources/app
anywhere, anytime. Beneficial because an org. may access resources it may not normally have.
9.Operating Systems: Allows a user to easily access
hardware/software, re- quired to maintain computer environment.
10.Kernel: Core component of
OS. Loads when computer first boots Sits on top of hardware, is interface b/w hardware and software. 1 / 2
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11.Device Drivers: Interface b/w OS and hardware.
12.Shell: Interface for user, often personalized. The shell provides
access to the kernel.I.E. The GUI will translate mouse motions into calls to kernel/routines.Desktop elements include shortcuts, windows theme, menus, background.
13.Services (Daemons): OS programs that start when OS is loaded.
They run in the background and wait for an event to initiate.
14.Utility Programs: Allow user to monitor system performance.
15.Web Server: Role is to respond to HTTP requests.
*Most HTTP requests are for HTML docs, but could include any web accessible resource.It's all combined into the URL.**APACHE is most popular web server-can execute scripts for dynamic pages, use security mechanisms, log request for trend tracking.
16.Proxy Server: Acts as a giant cache and allows pages accessed
frequently in an organization to be accessed locally.
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