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jaspersugarlandSoftware and s/w Development

Dec 14, 2013 (3 years and 7 months ago)

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Terms & Concepts


Systems Software
: Operating Systems and Utility




Term

Definition / Explanation

Antivirus program


Software used to detect and eliminate computer
viruses.

Application software


Programs that enable users to perform specific tasks
on a computer, such as writing a letter or playing a
game.

Backup


A duplicate copy of data or other computer contents
in case the original version is destroyed.

Buffer


An area i
n RAM or on the hard drive designated to
hold input and output on their way in or out of the
system.

Computer virus


A software program, installed without the user’s
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Device driver


A program that enables an operating system to
communicate with a specific hardware device.

DOS

(
Disk Operating
System
)


The operating system designed for and widely used
on early IBM and IBM
-
compatible PCs.

File management
program


A
utility program that enables the user to perform file
management tasks, such as copying and deleting files.

Linux


A version of UNIX that is available without charge
over the Internet and is increasingly being used with
PCs, servers, mainframes, and super
computers.

Mac OS


The operating system for Apple’s Macintosh line of
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Mac OS X


The most recent version of Mac OS.

Multiprocessing


The capability of an operating system to use multiple
processors simultaneously in a single computer,
usually
to process multiple jobs at one time faster than
could be performed with a single processor.

Multitasking


The capability of an operating system to execute two
or more programs or program tasks concurrently for a
single user.

NetWare


A widely used
operating system for PC
-
based
networks.

Network operating
system


A type of operating system designed to support
multiple users over a network.






Terms & Concepts


Systems Software: Operating Systems and Utility



Term

Definition / Explanation

Operating system


The main component of system software that enables
the computer to manage its activities and the resources
under its control, run application programs, and
interface with the user.

Palm OS


The operating system designed for Palm handheld

PCs.

Parallel processing


A processing technique that uses multiple processors
simultaneously in a single computer, usually to
process a single job as fast as possible.

Personal operating
system


A type of operating system designed for single users.

Spooling

(
Simultaneous
Peripheral Operations On
Line
)


The process of placing items in a buffer so they can
be retrieved by the appropriate device (such as a
printer) when needed.

Symbian OS


A leading operating system for smart phones.

System software


Programs, such as the operating system, that control
the operation of a computer and its devices, as well as
enable application software to run on the PC.

UNIX


A multiuser, multitasking operating system developed
in the 1970s for midrange servers and mai
nframes.

Utility program


A type of software that performs a specific task,
usually related to managing or maintaining the
computer system.

Virtual memory


A memory
-
management technique that uses hard
drive space as an extension to a PC’s RAM.

Windows


The primary PC operating system developed by
Microsoft Corporation; the most recent version is
Windows XP.

Windows 2000


The upgrade to Windows NT.

Windows Embedded


A family of operating systems based on Windows and
designed for non
-
personal computer de
vices, such as
cash registers and consumer electronic devices.

Windows Mobile


A family of operating systems based on Windows and
designed for handheld PCs, smart phones, and other
mobile devices.