CGS final chapter 4

what operating system is widely used by servers on the web, mainframe computers, and very powerful personal computers?

UNIX

what operating system feature is controlled by a mouse and changes shape depending on its current function?

a pointer

what is linux?

a version of UNIX a popular & powerful alternative to the Windows operating system, is open source software

what do device drivers do?

allow particular input or output devices to communicate with the rest of the computer system

what does virtualization allow?

allows a single physical computer to support multiple operating systems using a special program (virtualization software) allows the single physical computer to operate as two or more separate & independent computers known as virtual machines

which of the following is not a popular desktop operating system? android, linux, max OS X, or windows 8?

android

starting or restarting a computer is called ________ the system

booting

what do utility suites do?

combine several programs into one package

what do language translators do?

convert programming instructions written by programmers into a language that computers can understand & process

what do operating systems do?

coordinate resources, provide an interface between users and the computer, & run programs

the windows troubleshooting utility that identifies and eliminates nonessential files is called _____

disk cleanup

program that works with the operating system to allow communication between a device and the rest of a computer system is called a device _______

driver

utilities make computing ______

easier

what category of operating systems is used for handheld devices?

embedded

mobile operating systems (mobile OS) are...

embedded in every smartphone and tablet these systems are less complicated & more specialized for wireless communication than desktop operating systems

true or false: system software cannot handle technical details without user intervention

false system software CAN handle technical details without user intervention

before sending a large file over the Internet, what program might you want to use?

file compression program

what utility program copies all files in the libraries, contacts, favorites, and on the desktop?

file history

what utility program makes a copy of all files or selected files that are in the libraries, contacts, and favorites on the desktop?

file history

you typically interact with the operating system through the ___________

graphical user interface (GUI) most provide a place, called the desktop, that provides access to computer resources

what mobile operating system was developed by apple and originally called iPhone OS?

iOS

graphic representation for a program, type of file, or function:

icons

google's chrome OS is based off of what?

linux

what function is responsible for monitoring system performance, scheduling tasks, providing security, & starting up the computer?

managing resources function managing resources is a function of operating systems

what version of mac OS X improved power management and enhanced workflow options for multiple monitor setups?

mavericks

what type of embedded operation system is used by smartphones?

mobile

which of the following is not a popular mobile operating system? iOS, mountain lion, windows phone 8, or android?

mountain lion

the ability to switch between different applications stored in memory is called:

multitasking

what type of operating system controls and coordinates networked computers?

network operating system (NOS)

is mountain lion a popular mobile operating system?

no

what system software is responsible for managing your computer's resources including memory, processing, and storage?

operating system

UNIX is a...

operating system that is widely used by servers on the web, mainframe computers, and very powerful personal computers

the operating system provides a function that is "managing resources", what does this entail?

operating systems coordinate all the computer's resources including memory, processing, storage, & devices such as printers and monitors they also monitor system performance, schedule tasks, provide security, & start up the computer

what is UNIX?

originally designed to run on minicomputers in network environments now, it is widely used by servers on the web, mainframe computers, & very powerful personal computers there are many different versions of UNIX

what do utilities do?

perform specific tasks related to managing computer resources

the operating system is often referred to as the software environment or software _____

platform

in a network operating system, what computer coordinates all communication between computers?

server

what do utility suites combine?

several programs into one package

what are operating systems often called?

software environments or software platforms

host operating systems run on ______

the physical machine

true or false: operating systems coordinate all the computer's resources including memory, processing, storage, & devices such as printers and monitors

true

true or false: operating systems (software environments, software platforms) handle technical details

truuuuu

guest operating systems operate on _______

virtual machines

what type of software allows a single physical computer to operate as though it were two or more separate and independent computers?

virtualization

what type of boot occurs when the computer is already on and you restart it without turning off the power?

warm boot

what is the most widely used personal computer operating system?

windows

some of the best known mobile operating systems are:

-android -iOS (iPhone OS) -windows phone 8

what things do system softwares work with to handle computer operations?

-end users -application programs -computer hardware system software works with end users, application programs, & computer hardware to handle many details relating to computer operations

windows operating systems are accompanied by several utility programs, including....

-file history -disk cleanup -optimize drives (eliminates unnecessary fragments; tracks are concentric rings; sectors are wedge-shaped).

the most essential utilities are...

-troubleshooting (diagnostic) -antivirus -backup -file compression

what are the three categories of operating systems?

1. *embedded (aka real-time operating system):* used with handheld computers; operating system stored within device 2. *stand-alone (desktop):* controls a single computer; located on the hard disk 3. *network (NOS):* controls and coordinates networked computers; located on the network server

every computer has an operating system, & every operating system performs a variety of functions, these functions can be classified into three groups:

1. managing resources 2. providing user interface 3. running applications

system software consists of these four types of programs:

1. operating systems 2. utilities 3. device drivers 4. language translators

what are the four most widely used desktop operating systems

1. windows 2. mac OS 3. UNIX 4. linux