Great Idea – Computer “Desktop What’s on your Computer Desktop? Browser and reader Office tools Microsoft Office or some other product Adobe Reader Games Media manipulators Music, iTunes Movies, Quicktime Photos Copyright © 2008 by Helene G. Kershner

Great Idea – Computer “Desktop What’s on your Computer Desktop? “Business” Software Quicken Turbo Tax Security software Symantec Antivirus “firewall” protection Course specific software Karel the Robot Recycle Bin File storage Todo list Copyright © 2008 by Helene G. Kershner

Great Idea – Computer “Desktop What do you use your computer for? Communication Virtual communities, facebook, myspace E-newsletters, blogs Social calendar Virtual retail therapy Entertainment Games Movies TV Art Writing of all kinds Notes, letters, papers, etc. Copyright © 2008 by Helene G. Kershner

Great Idea – Computer “Desktop What do you use your computer for? Household record keeping On-line banking Bills Tax information General business correspondence Source of news and information Copyright © 2008 by Helene G. Kershner

What is the computer “desktop”? “ Metaphor ” or a representation of something in the physical world. Your computer “desktop” was supposed to reflect or perhaps substitute for the physical desktop you have at home or in your dorm. To create this reflection, the computer uses a multimedia graphical user interface to create a way for you to interact with your machine. This graphical interface is a software tool developed so that you can communicate through an operating system with your computer. Copyright © 2008 by Helene G. Kershner

What is the computer “desktop”? Great Ideas: “Desktop” Graphical user interface Operating system Copyright © 2008 by Helene G. Kershner

What is the computer “desktop”? Great Idea: “Desktop” Let’s explore the desktop first. It is a virtual world, created by a program, on your monitor. It is a collection of images that represent different tasks. Little pictures, Icons, that represent these tasks Folders We have learned to give meaning to these images The idea, which came about with the original Macintosh in 1984 was to recreate on your monitor your desk at home. Copyright © 2008 by Helene G. Kershner

What is the computer “desktop”? My physical desk at home really does have a rather remarkable resemblance to my computer desktop only my computer desktop is neater. Paper piles Some in file folders, some in boxes, some on the desk, some on the floor, some actually filed Books Calculator Rubber-bands, sticky notes, paper-clips, eye drops, cancy Copyright © 2008 by Helene G. Kershner

What is the computer “desktop”? Computer “desktop” was envisioned to simplify our world. It was thought that the computer would replace all the stuff on our desks and we would somehow move into a paperless world were all our information was stored simply, efficiently and painlessly in our virtual world. The computer HAS altered our physical desktop world, but it has certainly NOT eliminated it. Copyright © 2008 by Helene G. Kershner

What is the computer “desktop”? Has it made our physical desktop world simpler, easier to manage? Copyright © 2008 by Helene G. Kershner

What is the computer “desktop”? My computer desktop does help me Find my stuff, sometimes Make filing easier, sort of Make typing easier, especially spelling Has altered the way I do things Household business Communication Is it a help? I’m not sure! Copyright © 2008 by Helene G. Kershner

What is the computer “desktop”? Our virtual desktop is a complex program that manages the way people interact with computers. It’s not magic. It’s just a program. Operating System All general purpose computers have operating systems Supercomputers iPhone Operating Systems have names Windows Mac OS X Linux Unix Proprietary Operating Systems Copyright © 2008 by Helene G. Kershner

What is the computer “desktop”? Copyright © 2008 by Helene G. Kershner

What is the computer “desktop”? Great Idea: Operating System The Operating System is: The program that that lets your computer communicate with you and with all the other software that runs on your machine. “Performs basic tasks recognizing input from the keyboard, sending output to the display screen, keeping track of files and directory on the disk, controlling the peripheral devices such as disk drives and printers.” It manages wireless operations and controls all software Copyright © 2008 by Helene G. Kershner

What is the computer “desktop”? Great Idea: Operating System The Operating System is: Coordinates operations so that programs running at the same time seem to have total access to the machine and not “bump” into each other It manages resources Coordinates between users on multiuser systems It is the computers traffic-cop Copyright © 2008 by Helene G. Kershner

What is the computer “desktop”? Look and Feel of a Desktop – what we call Windows A little history – First personal computer designed to be used by “ordinary” folks was the Apple II released in 1977 It sold very well because it was bundled with a program called VisiCalc the first ever electronic spreadsheet It did NOT have a “desktop” “Command” line operation Black screen, white letters Copyright © 2008 by Helene G. Kershner

What is the computer “desktop”? Apple II (1978) Copyright © 2008 by Helene G. Kershner

What is the computer “desktop”? Macintosh (1984) The first computer to have the “look and feel” of current systems was the Macintosh “The computer for the rest of us!” Screen had icons to represent tasks Black characters on white background Designed for ease of use Mac popularized the graphical user interface Copyright © 2008 by Helene G. Kershner

What is the computer “desktop”? Great Idea: Graphical User Interface The user interactive portion of the operating system that lets uses images, color and mouse clicks to make interacting with a computer more “user friendly.” Multimedia Combines text, graphics, images, sound to make interacting easier Tries to map virtual onto physical, easy to use Copyright © 2008 by Helene G. Kershner

What is the computer “desktop”? Microsoft Windows First there was DOS: In 1966 IBM mainframe computer operating system was called DOS – for Disk Operating System In 1978 the Apple II is released with it’s own DOS (Apple-DOS). When IBM introduced its first personal computer in 1981 it came with an operating system called MS- DOS for Microsoft Disk Operating System Copyright © 2008 by Helene G. Kershner

What is the computer “desktop”? Microsoft Windows Then there was Windows: In 1984 the Macintosh was released. It was the first machine with a graphical-user-interface and a mouse. Microsoft Windows is Microsoft’s operating system designed by Microsoft, initially to run on IBM PC, and it incorporated the idea of a graphical-user-interface. The first Microsoft version of Windows was introduced in 1985 an add-on to MS-DOS in response to the growing interest in graphical-user-interface. (popularity of the first Macs) Copyright © 2008 by Helene G. Kershner

What is the computer “desktop”? Microsoft Windows Microsoft Windows came to dominate the world's personal computer market, overtaking Mac OS, which had been introduced previously. Apple sued Microsoft over the “look-and-feel” of it’s operation system – it’s easy of use overall look Microsoft clearly copied the Apple’s “look-and-feel” Apple lost the suit! Why? If it was clearly a copy, why would Apple lose? Copyright © 2008 by Helene G. Kershner

What is the computer “desktop”? Apple vs Microsoft The graphically oriented original MacOS was in part based Lisa an Apple computer that never become popular and was released in The Lisa was based in part on concepts used by Xerox who for a time had a partial ownership share in Apple. Xerox  Lisa  Macintosh  Microsoft Windows Copyright © 2008 by Helene G. Kershner

What is the computer “desktop”? Windows 98 =related =related Microsoft Comercial early 90s e=related Mac vs PC ure=related ure=related Mac vs. PC vs. Linix ure=related ure=related Copyright © 2008 by Helene G. Kershner