1. By John Keirs

2. Distinction between an operating system and an program with examples of eachDistinction between an operating system and an program with examples of each Explanation of the need for standard files formatsExplanation of the need for standard files formats Description of the following standard file formats to text files: text, ASCII, rich text fileDescription of the following standard file formats to text files: text, ASCII, rich text file Identification of data objects and operations in the context of word processing, databases, spreadsheets and graphic packagesIdentification of data objects and operations in the context of word processing, databases, spreadsheets and graphic packages Definition of a VirusDefinition of a Virus Description of how a virus operatesDescription of how a virus operates Description of the following common symptoms of virus infection: displaying unwanted messages, unusual visual/sound effects, computers rebooting unexpectedly, unwanted generation of e-mailsDescription of the following common symptoms of virus infection: displaying unwanted messages, unusual visual/sound effects, computers rebooting unexpectedly, unwanted generation of e-mails Description of how viruses are spread via floppy disk, homemade CD’s, ‘fun’ websites and e-mail attachmentsDescription of how viruses are spread via floppy disk, homemade CD’s, ‘fun’ websites and e-mail attachments Explanation of the need for anti-virus softwareExplanation of the need for anti-virus software

3. A application programme is designed for a specific task where as an operating system is the thing that controls the hardware and software on the computer.A application programme is designed for a specific task where as an operating system is the thing that controls the hardware and software on the computer. Examples of An Operating System Is Windows 95/98/ME/2000/NT/XP System Or MacOS X Examples of An Operating System Is Windows 95/98/ME/2000/NT/XP System Or MacOS X An Example Of An Application Programme Is Word Processing, Spreadsheets Or Desktop Publishing An Example Of An Application Programme Is Word Processing, Spreadsheets Or Desktop Publishing

4. You Need Standard File Formats So That Manufacturers Could Read Other Manufacturers Files By Programme.You Need Standard File Formats So That Manufacturers Could Read Other Manufacturers Files By Programme. Files Created In Word Could Not Be Used In WordPerfect. Files Created In Word Could Not Be Used In WordPerfect.

5. Standard File Formats For Text Files Are ASCII, Text and Rich Text FilesStandard File Formats For Text Files Are ASCII, Text and Rich Text Files.

6. PackageObjectsOperations Word Processor Character Word Sentence Paragraph Table Drawing Enter, insert, edit, delete, copy, paste, format, spell- check, search and replace Import/export Add row, add column, Split cell, merge cell Group, scale, move forward/back DatabaseFieldRecordFileLayout Enter, insert, edit, delete, copy, paste, format Search, sort, calculate, query Import/exportReport SpreadsheetCellRowColumnNumberTextFormulaChart Enter, insert, edit, delete, copy, paste, set attributes Format, import/export Calculate (sum, averages, max, min, if) Chart scale GraphicsPixelLineCircleRectanglePolygon Enter, insert, edit, delete, copy, paste, format Scale rotate, layer, group, ungroup, crop

7. A Virus Is A Thing You Do Not Want On Your Computer ! A Virus Is A Thing You Do Not Want On Your Computer ! A Computer Virus Is A Self Replicating Piece Of Computer Code That Can Partially Or Full Attach Itself To Files Or Applications, And Can Cause Your Computer To Do Something You Don’t Want It To Do. Virus Behaviour Can Range From Annoying To Destructive, But Even Relatively Benign Viruses Tend To Cause Harm. A Computer Virus Is A Self Replicating Piece Of Computer Code That Can Partially Or Full Attach Itself To Files Or Applications, And Can Cause Your Computer To Do Something You Don’t Want It To Do. Virus Behaviour Can Range From Annoying To Destructive, But Even Relatively Benign Viruses Tend To Cause Harm.

8. A Virus Operates By … Replication: Copies Itself To Other Files, Particularly To.Com And.Exe Files And The Boot Sector RecordReplication: Copies Itself To Other Files, Particularly To.Com And.Exe Files And The Boot Sector Record Camouflage: Attempts To Disguise Itself To Avoid Detection From Anti-Virus SoftwareCamouflage: Attempts To Disguise Itself To Avoid Detection From Anti-Virus Software Event Watching: Whenever The Virus Runs It Checks For Certain Events, e.g. A Specific Date, When The Virus Will ActiveEvent Watching: Whenever The Virus Runs It Checks For Certain Events, e.g. A Specific Date, When The Virus Will Active Delivery: This Is The Purpose Of The Virus Or What It Does. This May Be A Simple Jumbling Up Of Letters Or Wiping An Entire Hard Drive.Delivery: This Is The Purpose Of The Virus Or What It Does. This May Be A Simple Jumbling Up Of Letters Or Wiping An Entire Hard Drive.

9. Signs Of A Virus… Displaying Unwanted MessagesDisplaying Unwanted Messages Strange Sounds Or Visual EffectsStrange Sounds Or Visual Effects Computer Keeps Rebooting UnexpectedlyComputer Keeps Rebooting Unexpectedly A Flood Of Unexpected E-MailsA Flood Of Unexpected E-Mails A Common Misconception Is That All Types Of Interfering Programmes Are Viruses. They Aren’t. Worms, Trojan, Horses and Viruses Are In a Broader Category Of What Analysts Call Malicious Code.A Common Misconception Is That All Types Of Interfering Programmes Are Viruses. They Aren’t. Worms, Trojan, Horses and Viruses Are In a Broader Category Of What Analysts Call Malicious Code.

10. Viruses Are Spread By … E-MailE-Mail Downloads From The InternetDownloads From The Internet Floppy Discs Or Some Other Sort Of Copying DeviceFloppy Discs Or Some Other Sort Of Copying Device Fun WebsitesFun Websites But The Primary Vehicle For Transmission Of A Computer Virus Is E-Mail.But The Primary Vehicle For Transmission Of A Computer Virus Is E-Mail.

11. Anti-Virus Software Helps To Terminate A Virus From Your Computer To Make It Safe. For Example Norton Internet Security Or MacAfee Anti-Virus. For Example Norton Internet Security Or MacAfee Anti-Virus.