Computers

What remedies can you try if your computer or application runs sluggishly

- Remove unnecessary files and uninstall seldom used programs and apps - Defragmenting the hard disk - Purchase and install additional RAM

What is the role of an operating system:

- Starting/shutting down the computer - Providing a user interface - Managing programs - Managing memory - Coordinating tasks - Configuring devices - Monitoring performances - Establishing internet connection - File management - Updating operating system software

What duties does a network administrator perform

A network administrator oversees network operations, uses the server operating system to add and remove users, computers and other devices to and from network. Also uses the operating system on the network to configure the network, install software and administer network security

What are some popular mobile OS

Android IOS and Windows phone

Why do computers running Chrome OS require less internal storage capacity than those running other desktop operating systems

Because computers running Chrome OS work mostly with web apps, they do not require as much internal storage capacity as other desktop OS systems

Type of education in which students learn by using and completing exercises with instrumental software

CBT

An operating system must reside inside a computer or mobile device; that is, it cannot run from a USB or flash drive T/F

F

The kernel is nonresident, which means it remains in memory while the computer or mobile device is running. T/F

F

An upward compatible application means it can work and recognize with applications written for an earlier version of the operating system T/F

F - backward compatible

Most users today work with a command line interface T/F

F - graphical user interface

Linux is proprietary software T/F

F- open source

What does firmware do

Firmware consists of ROM chips or flash memory chips that store permanent insturctions

In a multi user operating system, are tasks processed on a first come first served basis, why or why not?

No, if a user has been assigned a higher priority than others by a network administration, the operating system performs higher priority tasks first

Instructions remain on a storage medium until they are needed, at which time they transfer into memory (RAM)

Nonresident memory

Destructive event or prank a virus was created to deliver

Payload

Computing environment where an internet server hosts and deploys applications

Personal Firewall

Scam in which a perpetrator sends an official looking email message that attempts to obtain personal and/or financial information.

Phishing

Square shaped graphic that presents a web address or other information

QR code

Separate area of a hard drive that holds an infected file until the infection can be removed

Quarantine

Kernel remains in memory while the computer or mobile device us running

Resident memory

Copyrighted software that is distributed at no cost for a trial period

Shareware

Security tool that detects and protects a personal computer and its data from unauthorized intrusions

Software as a service

A user interface controls how you enter data and instructions and how information is displayed T/F

T

Each device connected to a computer requires its own specific driver T/F

T

Hackers often look for ways to break into a computer or device using flaws in the operating system T/F

T

Many of the first OS were device dependent and proprietary T/F

T

Most operating systems today are multitasking T/F

T

Operating systems that function both as desktop and server operating systems sometimes are called multipurpose operating systems T/Ft

T

The area of a hard drive used for virtual memory is called a swap file T/F

T

What is a platform

The operating system a computer sometimes uses

Why do some users find command line interface difficult to use

They require exact spelling, form and punctuation

Program that enables you to perform maintenance type tasks usually related to managing devices, media and programs and used by computers and mobile device

Tools

In terms of speed, how does virtual memory compare with RAM?

Virtual memory is slower than RAM

What are some widely used desktop operating sytems

Windows, Mac OS, UNIX, Linux and Chrome OS

What is the role of virtual memory

With virtual memory, the operating system allocates a portion of a storage medium, such as a hard drive, or a USB flash drive, to function as additional RAM.

Malware that resides in active memory and replicates itself over a network to infect computers and devices, using up the system resources and possibly shutting down the system

Worm

What is the advantage of a device independent operating system

You can retain existing applications and data files even if you change computer or mobile device models or vendors

Additional programs and apps included with operating systems, usually for profit

bloatware

Segment of memory or storage in which items are placed while waiting to be transferred from an input device or to an output device

buffer

Starting a computer from a state where it is powered off completely

cold boot

Set of commands used to control actions performed in a command line interface

command language

A _______________________ application is an application that runs the same on multiple operating systems

cross platform

Small program that tells the operating system how to communicate with a specific device

driver

What built in security tools are included in most operating systems

file manager search image review uninstaller disk cleanup disk defragmentor screen saver file compression PC maintenance backup restore

ROM chips or flash memory chips that store permanent instructions

firmware

Placing a computer in ______________ mode saves any open documents and running programs or apps to an internal hard drive before power is removed from the computer or device

hibernate

The core of an operating system that manages memory and devices, maintains an internal clock, runs programs and assigns resources such as devices, programs, apps, data and info

kernel

A ______________ operating system allows 2 or more programs or apps to reside in memory at the same time

multitasking

With ___________ interface, users interact with the software through ordinary, intuitive behavior

natural user interface

The technique of swapping items between memory and storage is called _____________________

paging

A ______________ is a multi user operating system that organizes and coordinates how multiple users access and share resources on a network

server operating system

Free downloadable updates are sometimes called a _____________

service pack

Saves any open documents and running programs or apps to RAM, turns off all unneeded functions, then places the computer in a low power state

sleep mode

Operating system problem that occurs when it spends much of its time paging instead of executing application software

thrashing

In windows, a _______________ is a shortcut to apps or other content.

tile

With ______________ the operating system allocates a portion of a storage medium to function as additional RAM

virtual memory

Restarting a computer while it remains powered on

warm boot