Single

Submitted to:

Mr.Khalid Haseeb Submitted by:

Wahab Khan MCS 2nd Subject:

Single-user “Single task” OS.

Date: 31/05/2009

SARHAD UNIVERSITY OF SCIENCE AND INFORMATION TECHNOLOGY

What is Single-User, Single-Tasking OS? Single-user, single task - As the name implies, this operating system is designed to manage the computer so that one user can effectively do one thing at a time. The Palm OS for Palm handheld computers is a good example of a modern single-user, single-task operating system.

What is the difference between a single-user and a multi-user operating system? Single-user OS is that OS which support only one user at a time. for example: DOS, WINDOWS 3X, WINDOWS 95/97/98 etc. Multi-user OS is that which support more than one users at the same time. in these types of OS there is a server and all the users are provided different terminals. these terminals are connected to the server. for example: UNIX, LYNIX, WINDOWS VISTA etc.

Operating systems that design for Sing user:           

Palm Operating system AmigaOS MS-DOS (and compatibles like FreeDOS, DR-DOS, ROM-DOS) Windows 1.0 Windows 2.x Windows 3.x Windows 95 Windows 98 Windows ME Windows CE Mac OS

Previous Version of Ms Dos..

How to use:? Below is a listing of the top 10 MS-DOS commands most commonly used and that you will most likely use during a normal DOS session? 1. 2. 3. 4. 5.

Cd Dir Copy Del Edit

//Change directory //Directory //Copy command //Delete command

6. 7. 8. 9. 10.

Move Ren (rename) Deltree Cls //Clear Screen Format

History: Released in 1990, Microsoft Windows 3.0 was a revolutionary operating system for the PC as one of the most used GUI operating systems. Later Windows 3.1 was released in 1992 by Microsoft and was one of the first major PC GUI operating systems widely used. Windows 3.1 allowed users to utilize several features previously not available in MS-DOS. Some of these new features were the use of a mouse that allowed the user to navigate and manipulate data on the computer with one hand simply and easily and now did not have to memorize MSDOS commands. In addition to the mouse, Windows now allowed the user to multitask, meaning the user could now run multiple applications at once without having to close out of each program before running another. Windows along with other GUI operating systems are one of the many reasons computers have become easier and more widely used. How to use win 3.0? WIN /S - This starts Windows in standard mode (also WIN/2 will work). Standard mode is faster than 386 Enhanced mode. You might want to use this option if you only run windows programs or are experiencing hardware compatibility problems when running in 386 enhanced mode. This option is not available in Windows for Workgroups3.11.

WIN /3 - You can use this option if you want Windows to run in 386 enhanced mode even though your 80386 (or higher) has less than 2MB of RAM (however, must at least have 1MB) WIN <program path/filename> - Run the program from DOS booting into Windows without showing logo. WIN: - Runs Windows without displaying the logo screen, (if you have a program like shareware WINGIF, you can compress any bitmap into RLE (run length encoded) format and load your own logo screen. RLE format files still work as wall paper in their compress form. The compress file in this procedure cannot exceed 55k in size. WIN /R - Windows 3.0 uses this switch to force running in Real Mode. Other version of Windows higher than 3.0 do not support Real Mode. Note this will run SLOW. WIN /N - (WFW 3.11 only) No protected mode network support. The Windows Network System drivers are not loaded. A real mode network started before Windows is still operational since Windows in only a shell to the operating system. WIN /B - Creates a text file called BOOTLOG.TXT detailing every step of load process. WIN /D: below option -

History: The next installment of Windows from Windows 3.11. Windows 95 added major enhancements when compared to Windows 3.11. Below are some of the new features that Windows 95 has that Windows 3.x does not. Plug and Play Allows hardware devices to be automatically installed into the computer with the proper software. Does not require jumpers to be played with. 32 Bit 32-Bit operating system allowing the computer to run faster and more efficiently. Registry Combines the power of multiple configuration files into two files, allowing the system configurations to be located easier.

Memory Windows 95 has an improved memory handling processes compared to Windows 3.11. Right mouse click Allows you new access and text manipulation by utilizing both buttons instead of one. CD-Player Enhanced CD-Player with improved usability and AutoPlay feature. How to use win 95? How to change the Startup and shutdown screen in Windows95 WARNING: Before you attempt doing this, you need to make sure that the file you are modifying is backed up on a disk or another directory on your hard drive. Now that you have backed up, you can make your own pictures where ever you want, just remember that the size of the picture has to stay the same. Below is the list of the different pictures you can change and the size of those pictures. logo.sys = "Startup" 320 x 400 logow.sys = "Please Wait while Windows95 is shutting down" 320 x 400 logos.sys = "It is now safe to shut off your computer" 320 x 400 An easy way of opening these files is to go into your paint program by clicking on start/programs/accessories/paint, then going to file and opening c:\windows\logow.sys, c:\windows\logos.sys or c:\logo.sys. You can run any of the Control Panel icons without going into the Control Panel by clicking on start / run and typing "rundll32 shell32.dll,Control_RunDLL modem.cpl" (without quotes). This example would run the modem icon in the Control Panel, you can replace modem with any valid cpl file.

History: A computer known as the Amiga or A1000 that was first released by Commodore in 1985. Commodore later released other models that include the A500, A500+, A600, A1200, A2000, A3000 and A4000. However, in 1994 Commodore declared bankruptcy and sold all its assets.

History: Microsoft Windows 98 is the upgrade to Microsoft Windows 95. While this was not as big as release as Windows 95, Windows 98 has significant updates, fixes and support for new peripherals. Below is a list of some of its new features. Protection - Windows 98 includes additional protection for important files on your computer such as backing up your registry automatically. Improved support - Improved support for new devices such as AGP, DirectX, DVD, USB, MMX, FAT32 - Windows 98 has the capability of converting your drive to FAT32 without losing any information. Interface - Users of Windows 95 and NT will enjoy the same easy interface. PnP - Improved PnP support, to detect devices even better than Windows 95. Internet Explorer 4.0 - Included Internet Explorer 4.0 Customizable Taskbar - Windows adds many nice new features to the taskbar that 95 and NT do not have. Includes Plus! - Includes features only found in Microsoft Plus! free. Active Desktop - Includes Active Desktop that allows for users to customize their desktop with the look of the Internet.

History: Windows Millennium, also known as Windows ME, was introduced September 14, 2000 to the general public as the upgrade for Windows 95 and Windows 98 users and is designed for end-users. Overall, Windows ME has the look and feel of Windows 98 with some additional fixes and features not available in previous operating systems.

While Windows ME includes some of the latest fixes and updates and some enticing new features, we recommend this update only for users that may find or want some of the new features listed below or for users who are purchasing a new computer with this operating system included. New features Some of the most noticeable new features include: Revert back to backup of computer - Windows Me allows the user to automatically restore an old backup in case files are corrupted or deleted. Protect important system files - Windows Me allows the user to protect important system files and will not allow these files to be modified by any type of other software. Movie editor - Allows users to edit and or combine Microsoft movie files. Importing movies requires additional hardware. Windows Media Player - Includes Media Player 7, which enables users a more advanced way of listening and organizing their media files.

History: Mac OS 9 is the latest public release of the Apple operating system, which includes new and unique features not found in any other operating system. Below are some of the new features found with this new operating system. New feature: Sherlock 2 - Which offers the capability of quickly searching and purchasing online. 3D acceleration - Support for technologies such as OpenGL, allowing improved video and a wider gaming experience. Share files - Share files and folders over the Internet with other Mac users. Color sync 3.0 - Manages color even more efficiently. Synchronize - Synchronizes with Palm computing products using HotSync software. TCP/IP - Provides access to TCP/IP networks.

Lock System - Ensures that System Folders and Applications do not accidentally get reconfigured by having the capability of locking the system.

History: Microsoft Windows CE 1.0 was originally released in 1996 to compete in the Palm Device Assistant Category. Windows CE, as shown below, has many of the same features as Windows 95. In addition to the look of Windows 95, Windows CE also includes similar applications such as Pocket Excel, Pocket Word, and Pocket Power. Reference:: http://www.computerhope.com