module 9-8#? Flashcards
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System software
the software that runs a computer, including the operating system.
Operating system (OS)
is a set of programs that coordinate all the activities of computer or mobile device hardware.
graphical user interface (GUI)
a collective term for all the ways you interact with the device.
Option buttons:
round buttons that present one choice; they are also called radio buttons.
Check boxes
square boxes that present a yes/no choice and display a check mark or x when selected.
Virtual memory
allows an operating system to temporarily store data on a storage medium until it can be “swapped” into RAM.
List boxes
lists of options that appear when you click arrows in a dialog box; some list boxes allow you to make multiple selections.
A buffer
is an area of memory that stores data and information waiting to be sent to an input or output device.
Servers do not run
the same operating system as tablets or laptops because these computers perform different computing tasks.
The term, PC (personal computer) is sometimes used to describe
a computer that runs the Windows operating system
UNIX (pronounced “you-nix”) is a
multitasking operating system developed in the early 1970s by scientists at Bell Laboratories.
Linux (pronounced LINN-uks), introduced in 1991, is a popular multitasking UNIX-based
operating system that runs on a variety of personal computers, servers, and devices.
server operating system
is a multiuser operating system because it controls a single, centralized server computer that supports many users on networked computers.
A mobile operating system has features similar to
those of a desktop operating system but is focused on the needs of a mobile user and the capabilities of the device.
Closed-source programs
have standard features and can be customized only by using the operating system’s utilities.
open-source programs
state that because the code is public, coders can examine, correct, and enhance programs.
device-dependent program
is one that runs only on a specific type or make of computer or mobile device.
Mobile operating systems use
technologies such as cellular, Bluetooth, Wi-Fi, GPS, and NFC to communicate with other devices and to connect to the Internet.
Proprietary software
is privately owned and limited to a specific vendor or computer or device model.
cross-platform application
is an application that runs the same way on multiple operating systems.
Open-source programs and apps
(including operating systems) have no restrictions from the copyright holder regarding modification and redistribution.
