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By Philip Schorr Hour 2

The Operating System. By Philip Schorr Hour 2. What’s an Operating system?. An operating system is the program that allows computer hardware to communicate with computer software. What does it do?. What does it do?. Manages storage space Detects problems & equipment failure

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By Philip Schorr Hour 2

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  1. The Operating System By Philip Schorr Hour 2

  2. What’s an Operating system? An operating system is the program that allows computer hardware to communicate with computer software.

  3. What does it do?

  4. What does it do? • Manages storage space • Detects problems & equipment failure • Traffic controller • System resource manager • Multi-tasking (since this one is self explanatory I’ll barely discuss it.)

  5. Manage storage space • Stores data on multiple Devices • Disks • Tape drives • CD ROMS • External drivers • Retrieves data • Uses a filing system of some kind to retrieve and store data

  6. How it communicates with hardware • How it uses memory

  7. Detecting problems • Checks for errors that may cause problems in processing • Brings up error messages if it detects something • Sometimes messages are prerecorded which run a quick patch up program

  8. Traffic controller • In charge of data going in (from keyboard or mouse) and outgoing data (printer and monitor) • Directs flow of data (see memory storage space) • Sends information to the processor via the bus

  9. System resource manager • Large part of Operating systems job • Provides a way for applications to deal with new and sometimes unfamiliar hardware, as well as old and well used hardware.

  10. Extra information • The Operating system begins to start itself up after the boot up process has been completed. • It is a number of files copied onto the hard disk

  11. History of the Operating System

  12. 1940-1950’s • Early computers of the 1940’s had no Operating systems. • Computers of the 1950’s ran one program at a time. • 1956! General motors invents the first Operating system for IBM (real time operating system)

  13. 1960s • 1960s computers ran multiple jobs at once. • Users competed for use of computer resources. • Operations where split up by time shares, but seemed instantaneous • Multiprocessing was limited by low memory

  14. 1970s • Unix OS production was started (1970) • Unix marketed in 1975 • Used by multiple systems

  15. 1980s • Windows 3.0 was released by Bill Gates of Microsoft. (1990) • Allowed multi tasking • Many newer updated versions where released.

  16. 1990s • Microsoft began writing an OS (1980) • PC-DOS released • Microsoft windows released (1985)

  17. 2000s • Windows 2000 was released • Though more reliable, it wouldn’t run some DOS based games • MAC OSX released. More reliable and has a stable memory structure • Windows XP released • Windows Vista flopped

  18. Major manufacturers

  19. Major manufacturers • Data General • Honey well • Unix • MCP • IBM • Apple • Microsoft • DEC (now owned by Compaq)

  20. Types of Operating systems

  21. Typesofoperatingsystems • Real time operating System • Single-user, single task • Single-user, Multi-tasking • Multi-user

  22. Real time operating system • Control scientific devices and machinery • Little user-interface capability • Makes machines do the same thing every time

  23. Single-user, single-task • made specifically to be used by one person • Can only run ONE task at a time • Usually found in handheld systems

  24. Single-user, multi-task • made specifically to be used by one person • Can run many applications at once. • Usually used for desktops and laptops

  25. multi-user, multi-task • Made so multiple users can take advantage of the OS • Makes sure one users problems don’t delay the rest.

  26. Multi-task only • Must deal with masked and non-masked interrupts • Masked – problems that can be hidden and dealt with after a more important issue has been resolved • Non-masked-Problems that cannot be hidden and must be resolved immediately.

  27. Information What is an OS, http://www.computerhope.com/os.htm Manufacturers of the OS, http://www.oshistory.net/metadot/index.pl Types of OSs, http://computer.howstuffworks.com/operating-system3.htm History of the OS, http://www.computinghistorymuseum.org/teaching/papers/research/history_of_operating_system_Moumina.pdf Images What is an OS, http://www.websitesandsoundbites.com/Question_Mark_1.gif Title page,http://www.cgl.ucsf.edu/Outreach/bmi280/slides/swc/lec/img/shell01/operating_system.png History,http://media.nscdn.com/uploads/cache/images/1234146039-739257-400x298-explosm-evolution-t-shirt.jpg How it works,https://fedoraproject.org/w/uploads/4/41/Artwork_F10Themes_Gears_clockwork_gold.png Source page

  28. http://trillian.randomstuff.org.uk/~stephen/history/timeline-OS.htmlhttp://trillian.randomstuff.org.uk/~stephen/history/timeline-OS.html What does an OS do, http://library.thinkquest.org/11309/data/operate.htm Manufacturers,http://upload.wikimedia.org/wikipedia/commons/2/29/Ford_assembly_line_-_1913.jpg Types of products,http://www.teammahaska.org/images/mcard/New%20Sharon/Grocery%20Store%202.jpg Sources continued

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