Chapter 4 true/false

Utility Suites

A software company usually combines several programs into one package or suite to make it less expensive.

On top of the virtual machine in my PC,

I can install multiple OS's such as Linux, Windows 7, and Windows 8 even though the host OS of my PC is Windows 10.

System Software

System software handles the technical details of the computer system.

System Software

System software includes operating system, utilities, device drivers, and language translators.

System Software

System software works with end-users, application software, and computer hardware.

Windows XP / 7 / 8

Integrates the desktop OS with its mobile OS

Disk Defragmenter Utility can optimize disk-drives by identifying and eliminating unnecessary

fragments.

File History Utility makes a copy of all files

in the libraries, contacts, favorites and the desktop.

File History Utility program is included

in windows 8

Mobile OS

is an Embeddedoperating system that is less complicated but more specialized for wireless technology.

Mobile OS

is an embedded operating system.

OS can run

many foreground and background applications.

OS can manage

multi-tasking for the users.

A smartphone

needs an embedded OS in order to run.

OS

provides user interfaces such as GUI.

In general, GUI provides the following features:

a)Icons b)Pointer c)Windows d)Menus e)Tabs f)Dialog boxes g)Help h)Gesture Control

Embedded operating systems-RTOS (real-time operating systems)

a)Smartphone needs an embedded OS. b)Smartwatch needs an embedded OS c)Video game system needs an embedded OS.

All the following are most essential system utilities:

a)Troubleshooting or diagnostic programs - to recognize and correct problems; b)Antivirus programs - to guard your computer against viruses; c)Backup programs - to create copies of files to restore if necessary; d)File compression programs - to reduce the size of files for more efficient storage.

Virtualization software

allows us to run multiple operating systems on a single physical machine.

Disk Cleanup Utility identifies

and eliminates nonessential or temporary files from the disk drive.

Disk Defragmenter Utility will rearrange files

and unused disk space to optimize disk I/O operations.

Each virtual machine appears as a separate independent computer to the user,

and we can create a virtual machine in our PC by using some virtualization software such as VMware or VirtualBox.

System utilities

are specialized programs to make some computing services easier and more effective.

It's better to run Disk Cleanup Utility

before you go to bed since it may take hours to finish.

A computer has only one host OS,

but may have multiple guest OS's running under a virtualization software such as VMware or VirtualBox.

In hard disks, files are organized in tracks and sectors. Tracks are

concentric rings, and sectors are wedge-shaped sections of a track.

GUI

stands for Graphical User Interface.

OS provides the feature of booting

starting or restarting the computer system.

File History Utility helps prevent

the effect of disk failure.

Disk Cleanup Utility frees up

valuable space and improves system performance.

Files become fragmented

when they are broken up and stored in non-contiguous space.

OS provides the feature of managing

files and folders in the hard drives or hard disks.

Some of the best known Mobile OS are

Android, iOS, and Windows Phone.

Some popular utility suites are

1)Bit Defender, 2)Norton Utilities, and 3)Kaspersky.

OS will provide all the following major functions/tasks:

1)Manages computer resources 2)Coordinate memory, processing, storage, printers and monitors 3)Monitor system performance 4)Schedule tasks 5)Provide security 6)Start-up the computer

Two most recent versions of Mac OS X are:

1)OS X Mavericks-Improved power management 2)OS X Yosemite-New user interface

All the following programs are system software:

1)operating systems, 2)utility programs, and 3)device drivers.

Operating systems commonly used:

1.Windows - most widely used for regular PC 2. Mac OS - powerful; used for Apple PC 3. UNIX - proprietary; Not FREE 4. LINUX - non-proprietary; FREE download

.Stand-alone operating systems

Also called desktop operating system

LINUX- version of UNIX

Alternative to windows OS Open source - Free Google Chrome OS based on Linux Focuses on Internet connectivity and cloud computing Speed is determined by the speed of the Internet

true

Computers and computer applications have become a part of the fabric of every day life.

Three Categories of Operating Systems:

Embedded / Stand-alone / Network

Windows 10

Merges Windows desktop and mobile operating systems

true

Normally, we give little thought to the processes and programs running behind the scenes to keep them functioning effectively.

Operating Systems / OS

OS is a collection of programs to handle many technical tasks of the system.

UNIX operating system

Servers on the Web Mainframe computers Personal Computers

Network operating systems (linked computers)

Windows Server may use Linux or Unix.Network server has a network OS which coordinates all communication between the other computers.

Disk Defragmenter Utility will reorganize files in order to

eliminate all those tiny fragments of free space in disks.