Quiz 6:

                                         Quiz 6:

1.Define system software and identify the two types of system software.
2.Briefly describe various server operating systems: Windows Server, UNIX,Linux, Solaris, and NetWare.
3.Summarize the features of several embedded operating systems: Windows Embedded CE, Windows Mobile, Palm OS, iPhone OS, BlackBerry, Google Android, Embedded Linux, and Symbian OS.
4.Explain the purpose of several utility programs: file manager, search utility, image viewer, uninstaller, disk cleanup, disk defragmenter, backup and
restore utilities, screen saver, personal firewall, antivirus programs, spyware and adware removers, Internet filters, file compression, media player, disc burning, and personal computer maintenance.


                                                        Answer:

1. System Software-is computer software designed to operate the computer hardware and to provide a platform for running application software.
 Types of System Software: 

•  Operating System
• Utility Software

 2. Windows Server- a brand name for a group of server operating systems released by Microsoft Corporation.

UNIX-  a multi tasking, multi user computer operating system.

LINUX- refers to the family of UNIX-LIKE computer operating systems using the LINUX KERNEl.

Solaris- is a UNIX operating system originally developed by Sun Microsytems.

NetWare-  is a network operating system developed by Novell, Inc.

3. Features of : 
Windows Embedded CE

•  Component services
• networking capabilities
• multimedia support  and many other capabilities are contained within individual operating system features.

Windows Mobile 

• Updated Lock Screen
• Updated Today Screen
• Windows Phone Marketplace
• Windows Media Player Mobile
• Microsoft My Phone
• Social Networking Apps
• Designer Themes

Palm OS- There is a "stylus" or "pen" which is utilized to faucet the onscreen keyboard or to write on the window in "Graffiti", which is fast shorthand document system.

BlackBerry

• speakerphone system
• broadband EV-DO wireless data
• EDGE high speed wireless data and trackball.

Google Android

• Hand Set Layouts
•  Storage
• Connectivity
• Messaging
• Web Browser
• Java Virtual Machine
• Media Support
• Additional Hardware Support 

Embedded Linux

• Complete and royalty-free out-of-the-box embedded Linux environment with full source code
• Fully integrated and optimized BSPs for Digi hardware platforms
• Built on recent stable version of Linux kernel
• State-of-the-art graphical development environment based on open Eclipse framework
• Digi is the single source for complete hardware and software support

Symbian OS

• can also use languages like python, visual basic, OPL and Perl.
• was built in such a way that it follows the three basic design rules.
• event- based
• Central Processing Unit is switched off when the running applications and programs are not linked to the event.
• compatible with all kinds of devices.

4. Purpose of:

File Manager- provide network connectivity via protocols such as FTP, NFS, SMB, or WebDav.

Search Utility- to find quickly Files, Folders and Text on your Local, Network, DVD, CD-ROM, USB Hard or Flash Drives.

Image Viewer- display stored graphical image.

Uninstaller- designed to remove other software or parts of it from a computer.

Disk Cleanup- to free up disk space on a computer's hard drive.


Disk defragmenter- to increase access speed by rearranging files stored  on a disk to occupy contiguous storage locations.

Back up and Restore Utilities- creates safety copies of your most important personal files, so you're always prepared for the worst.

Screen saver- to prevent phosphor burn-in on CRT and plasma computer monitors by blanking the screen or filling it with moving images or patterns when the computer is not in use.

Personal Firewall-controls network traffic to and from a computer, permitting or denying communications based on a security policy.

Antivirus Programs-is used to prevent, detect, and remove malware, including computer viruses, computer worm, trojan horses,  spyware, and adware.

Spyware and Adware Remover-to detect and remove spyware, adware, and other malware such as keyloggers, rootkits, Trojan horses, and browser hijackers.

Internet Filters- monitor web content viewed on a particular computer or network.

File Compression- used when sending a file from one computer to another over a connection that has limited bandwidth
    -makes the file smaller and, therefore, the sending of the file is faster.


Media Player- data storage devices that play media.

disc burning -lets you create audio and data CDs, Video DVD authoring, the ability to burn Data DVDs, HD-DVDs and Blu-ray Discs.

Personal Computer Maintenance- to avoid many problems, computer slows down, you get a lot of freezes, files and programs take forever to open. 
    -Windows comes with a set of utilities to aid in the maintenance of your computer.