Introduction to Computing PDF

M - \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_. 42 Computer Software **SYSTEM SOFTWARE ^APPLICATION\ SOFTWARE^** 43 44 45 **Firefox** is a very popular web browser. One of the great things about Firefox is that it is s...

M - \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_. 42 Computer Software **SYSTEM SOFTWARE ^APPLICATION\ SOFTWARE^** 43 44 45 **Firefox** is a very popular web browser. One of the great things about Firefox is that it is supported on all different OSs. Firefox is also open source which makes its support group a very large community of open source 46 **Internet Explorer** (IE - created by  Microsoft) is a very prominent web browser for the Windows OS. IE is the most popular web browser. It comes pre-installed on all Windows computers. The latest version of IE is IE7 with IE8 in beta. IE was designed to view a broad range of web pages and to provide certain features within the OS. **Safari (created by Apple)** is a very popular web browser among Apple computers. Safari is also the native browser on the iPhone and iPod touch. Safari is available for Windows, but has not reached a very high level of Windows users since. In May 2008 Safari controlled 6.25% of marketshare among all web browsers. 47 **Opera** (created by the Opera  Software company) is another fairly popular web browser. It handles common Internet related tasks. Opera also includes features such as tabbed browsing, page zooming, mouse gestures, and an integrated download manager. Its security features include phishing and 1\. **Open** the Microsoft Internet Explorer browser. 2\. Click **Tools** in the upper right-hand corner. 3\. Select **Internet Options** from the dropdown menu. 48 2\. Click the **Menu** in the top right-hand corner of the screen 3\. Select **Options** from the dropdown menu. 2\. Click Menu in the top right-hand corner of the screen. 3\. Select **Settings** from the dropdown menu. 4\. Within Settings, check the box next to **Show Home button**. 49 50 ***Types of computer virus*** 51 52 your system and most importantly they are detected and eliminated by antiviruses. o **Trojans or Trojan Horses** Another unsavory breed of malicious code (not a virus as well) are Trojans or Trojan horses, which unlike viruses do not reproduce by infecting other files, nor do they self-replicate like worms. 53 54 ----------------------------------------- -- Debugging is complex and time consuming ----------------------------------------- -- 55 **Operating System categories and characterized using the following term:** 56 ✓ **Desktop OS** is designed for a desktop or notebook personal computer. DOS is a master's program that co-ordinate  the flow of information between computer and the disk, floppy or hard disk.MS-DOS is the brand name of the disk operating system manufactured by the Microsoft Corporation. Microsoft has given license to IBM to supply its DOS and when IBM 57 **Directory** C:\\ **Root Directory** **Sub-directories** CICT A B C ✓ ***Dir/w*** This option lists contents width wise. 58 ▪ **UNIX** If you create a subdirectory in the directory EMPLOYEE such as salary by giving the command: **MD EMPLOYEE** and then typing **CD EMPLOYEE** **MD SALARY** **CD SALARY** Now, DOS will show the prompt as: **C:\\EMPLOYEE\\SALARY\>** If you want to go back one directory, the command is: **CD..** ▪ ***RD*** This command removes a subdirectory. Syntax: **RD \** But this command will work only if the subdirectory **SALARY** is empty and the command is issued from outside the Salary subdirectory; that is, all files should be deleted before removing the subdirectory by **DEL** command and move to its parent directory. ▪ **IPCONFIG** This command will display the list of IP in your computer. 59 ▪ **OS/2**  60 On November 20, 1985, two  years after the initial announcement, Microsoft ships Windows 1.0. Now, rather than typing MS-DOS commands, you just move a mouse to point and click your way through screens, or On December 9, 1987 Microsoft releases Windows 2.0 with desktop icons and expanded memory. With improved graphics support, you can now overlap windows, control the screen layout, and use keyboard 61 making this the most widely used Windows operating system yet. The scale of this success causes Microsoft to revise earlier plans. Virtual Memory improves visual graphics. In 1990 Windows starts to look like the versions to On August 24, 1995, Microsoft  releases Windows 95, selling a record-setting 7 million copies in the first five weeks. It's the most publicized launch Microsoft has ever taken on. Television commercials feature the Rolling Stones singing \"Start Me Up\" over 62 **1998 -- 2000 Windows 98 , Windows 2000, Windows ME** Released on June 25, 1998, Windows 98 is the first version of Windows designed specifically for consumers. PCs are common at work and home, and Internet cafes where you can get online are popping up. Windows 98 is described as an operating system that "Works Better, Plays Better." On October 25, 2001,  Windows XP is released with a redesigned look and feel that\'s centered on usability and a unified Help and Support services center. It's available in 25 languages. For Microsoft, Windows XP will become one of its best 63 Windows Vista is released in 2006 with the strongest security system yet. User Account Control helps prevent potentially harmful software from making changes to your computer. In Windows Vista Ultimate, Windows 7 is released for  the wireless world of the late 2000s. Laptops are outselling desktops, and it\'s become common to connect to public wireless hotspots in coffee shops and private networks in the home. 64 Windows 8 is a re-imagined operating system, from the chipset to the user experience, and introduces a totally new interface that works smoothly for both touch and mouse and keyboard. It functions as both a tablet for entertainment and a full-featured PC for getting things  65 programs, documents, folders or other electronic tools **Start Button** displays the Start menu, which lists programs installed on your computer. **Taskbar** contain the Start button and Notification area. Taskbar buttons help you keep track of program s that are in use. **Managing Files in Windows** Desktop  Icons Start Menu Taskbar icons Two key programs for file management are available with windows: 66