Your SlideShare is downloading. ×
0
The University of Akron Summit College Business Technology Department Computer Information Systems 2440: 145  Operating Sy...
Operating System <ul><li>The most important program running on a computer </li></ul><ul><li>It helps: </li></ul><ul><ul><l...
Types of Operating Systems <ul><li>Different computer systems can have different operating systems </li></ul><ul><li>For e...
Types of Operating Systems… <ul><li>Other operating systems include: </li></ul><ul><ul><li>Operating Systems for Mainframe...
Operating System Components <ul><li>Some of the components of operating systems include: </li></ul><ul><ul><li>Application...
Operating System Components… <ul><li>Other operating system components include: </li></ul><ul><ul><li>Device drivers  – pr...
Characteristics of Operating Systems <ul><li>One way to look at a computer and operating systems is to consider them in te...
Single Tasking Systems <ul><li>Executes only one process at a time </li></ul><ul><li>Generally restricted to microcomputer...
Multi-tasking Systems <ul><li>Executes more than one program at a time for a user </li></ul><ul><li>It can run several pro...
Time-sharing System <ul><li>A central computer system that is used by multiple users and applications simultaneously </li>...
Batch Processing Systems <ul><li>Execute programs (batch process) that do not require active user intervention </li></ul><...
Real-time Systems <ul><li>An operating system that interacts directly with the user and responds in real time (immediately...
Multi-user Systems <ul><li>Supports multiple users who are accessing the computer’s and operating systems’ hardware and so...
Operating Systems Platforms <ul><li>The main operating system platforms include: </li></ul><ul><ul><li>Windows : by Micros...
The UNIX Operating System <ul><li>Multiuser, multitasking operating systems with built-in network functions </li></ul><ul>...
A Brief History of UNIX/Linux <ul><li>Developed in the 1970s by a group of inventive scientists at Bell Laboratories.  The...
UNIX Versions <ul><li>There are two major versions of UNIX: </li></ul><ul><ul><li>AT&T UNIX version V </li></ul></ul><ul><...
Other UNIX Systems <ul><li>There are several versions of UNIX running on Sun, HP, IBM, etc that are slightly different: </...
Linux <ul><li>Linus Torvalds and other Internet accomplices wrote Linux (a UNIX look-alike OS) and made it available for f...
Upcoming SlideShare
Loading in...5
×

Slide 1 - The University of Akron IS UAnet Services

820

Published on

Published in: Technology
0 Comments
1 Like
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total Views
820
On Slideshare
0
From Embeds
0
Number of Embeds
1
Actions
Shares
0
Downloads
16
Comments
0
Likes
1
Embeds 0
No embeds

No notes for slide

Transcript of "Slide 1 - The University of Akron IS UAnet Services"

  1. 1. The University of Akron Summit College Business Technology Department Computer Information Systems 2440: 145 Operating Systems Instructor: Enoch E. Damson
  2. 2. Operating System <ul><li>The most important program running on a computer </li></ul><ul><li>It helps: </li></ul><ul><ul><li>Store information </li></ul></ul><ul><ul><li>Process data </li></ul></ul><ul><ul><li>Use application software </li></ul></ul><ul><ul><li>Access all hardware attached to a computer </li></ul></ul><ul><ul><li>Control all the computer’s resources </li></ul></ul><ul><ul><li>Provide the basis upon which application programs can be used or written </li></ul></ul>
  3. 3. Types of Operating Systems <ul><li>Different computer systems can have different operating systems </li></ul><ul><li>For example: </li></ul><ul><ul><li>Operating Systems for Desktop PCs </li></ul></ul><ul><ul><ul><li>Microsoft Windows </li></ul></ul></ul><ul><ul><ul><li>Mac OS </li></ul></ul></ul><ul><ul><ul><li>Linux </li></ul></ul></ul><ul><ul><li>Operating Systems for Server Computers </li></ul></ul><ul><ul><ul><li>Microsoft Windows 2000 Server </li></ul></ul></ul><ul><ul><ul><li>Microsoft Windows Server 2003 </li></ul></ul></ul><ul><ul><ul><li>UNIX/Linux </li></ul></ul></ul><ul><ul><ul><li>NetWare </li></ul></ul></ul><ul><ul><ul><li>Mac OS X Server </li></ul></ul></ul>
  4. 4. Types of Operating Systems… <ul><li>Other operating systems include: </li></ul><ul><ul><li>Operating Systems for Mainframes </li></ul></ul><ul><ul><ul><li>IBMS’s MVS (Multiple Virtual Storage) </li></ul></ul></ul><ul><ul><ul><li>z/OS </li></ul></ul></ul><ul><ul><li>Operating Systems for Network Servers </li></ul></ul><ul><ul><ul><li>Novell NetWare </li></ul></ul></ul><ul><ul><ul><li>UNIX/Linux, Windows 2000/XP </li></ul></ul></ul><ul><ul><ul><li>Windows Server 2000 </li></ul></ul></ul>
  5. 5. Operating System Components <ul><li>Some of the components of operating systems include: </li></ul><ul><ul><li>Application Programming Interface (API) – software designed to communicate with the application software and the user </li></ul></ul><ul><ul><li>Basic Input/Output System (BIOS) – provides the basic input/output functions to communicate with system devices, such as monitors, keyboard, disks, etc </li></ul></ul><ul><ul><li>Kernel – the core of the operating system that coordinates operating system functions, such as controlling memory and storage </li></ul></ul><ul><ul><ul><li>Communicates with the BIOS, device drivers, and the API to perform these functions and also interface with the resource managers </li></ul></ul></ul>
  6. 6. Operating System Components… <ul><li>Other operating system components include: </li></ul><ul><ul><li>Device drivers – programs that take requests from the API via the kernel and translate them into commands to manipulate specific hardware devices, such as disks, keyboards, monitors, printers, etc </li></ul></ul><ul><ul><li>Resource managers – programs that manage computer memory and central processor use </li></ul></ul><ul><ul><li>Optional drivers – for other functions and devices, such as sound </li></ul></ul>
  7. 7. Characteristics of Operating Systems <ul><li>One way to look at a computer and operating systems is to consider them in terms of one or more of the following characteristics: </li></ul><ul><ul><li>Single-tasking </li></ul></ul><ul><ul><li>Multi-tasking </li></ul></ul><ul><ul><li>Time-sharing </li></ul></ul><ul><ul><li>Batch processing </li></ul></ul><ul><ul><li>Real-time </li></ul></ul><ul><ul><li>Multiuser </li></ul></ul>
  8. 8. Single Tasking Systems <ul><li>Executes only one process at a time </li></ul><ul><li>Generally restricted to microcomputers and certain specialized applications </li></ul>
  9. 9. Multi-tasking Systems <ul><li>Executes more than one program at a time for a user </li></ul><ul><li>It can run several programs in the background while users are working on another task in the foreground </li></ul>
  10. 10. Time-sharing System <ul><li>A central computer system that is used by multiple users and applications simultaneously </li></ul><ul><ul><li>Mainframe computers typically fall into this category </li></ul></ul><ul><ul><li>Most of the work is done in batches or batch processes </li></ul></ul>
  11. 11. Batch Processing Systems <ul><li>Execute programs (batch process) that do not require active user intervention </li></ul><ul><li>Normally uses a noninteractive I/O devices such as disks or document scanners for input and returns results to those same devices </li></ul>
  12. 12. Real-time Systems <ul><li>An operating system that interacts directly with the user and responds in real time (immediately or almost immediately) with required information </li></ul><ul><ul><li>Windows XP and Mac OS X are examples of these systems </li></ul></ul>
  13. 13. Multi-user Systems <ul><li>Supports multiple users who are accessing the computer’s and operating systems’ hardware and software facilities </li></ul><ul><ul><li>Both time-sharing and real-time systems can be multiuser systems </li></ul></ul>
  14. 14. Operating Systems Platforms <ul><li>The main operating system platforms include: </li></ul><ul><ul><li>Windows : by Microsoft Corporation </li></ul></ul><ul><ul><li>Mac OS : by Apple </li></ul></ul><ul><ul><li>UNIX </li></ul></ul><ul><ul><ul><li>Linux </li></ul></ul></ul><ul><ul><ul><li>Solaris </li></ul></ul></ul>
  15. 15. The UNIX Operating System <ul><li>Multiuser, multitasking operating systems with built-in network functions </li></ul><ul><li>Can be used on systems functioning as: </li></ul><ul><ul><li>Dedicated servers in a server-based network </li></ul></ul><ul><ul><li>Client workstations connected to a server-based network </li></ul></ul><ul><ul><li>Client/server workstations connected to a peer-to-peer network </li></ul></ul><ul><ul><li>Standalone workstations not connected to a network </li></ul></ul><ul><li>UNIX/Linux are: </li></ul><ul><ul><li>Multiuser systems – allow many people simultaneous access and share the resources of a server computer </li></ul></ul><ul><ul><li>Portable – can be used in a variety of computing environments </li></ul></ul>
  16. 16. A Brief History of UNIX/Linux <ul><li>Developed in the 1970s by a group of inventive scientists at Bell Laboratories. The created an operating system consisting of: </li></ul><ul><ul><li>Kernel – main program to control the CPU and all other hardware </li></ul></ul><ul><ul><li>Utilities – a collection of user and system programs </li></ul></ul><ul><ul><li>Filesystem – a structure for keeping and locating data in files on the hard drive </li></ul></ul>
  17. 17. UNIX Versions <ul><li>There are two major versions of UNIX: </li></ul><ul><ul><li>AT&T UNIX version V </li></ul></ul><ul><ul><li>Berkeley UNIX </li></ul></ul>
  18. 18. Other UNIX Systems <ul><li>There are several versions of UNIX running on Sun, HP, IBM, etc that are slightly different: </li></ul><ul><ul><li>Linux </li></ul></ul><ul><ul><li>Solaris </li></ul></ul><ul><ul><li>UnixWare </li></ul></ul>
  19. 19. Linux <ul><li>Linus Torvalds and other Internet accomplices wrote Linux (a UNIX look-alike OS) and made it available for free in its basic form </li></ul><ul><li>Versions of Linux include: </li></ul><ul><ul><li>OpenSolaris </li></ul></ul><ul><ul><li>Fedora </li></ul></ul><ul><ul><li>Red Hat </li></ul></ul><ul><ul><li>OpenSuse </li></ul></ul><ul><ul><li>Knoppix </li></ul></ul><ul><ul><li>Debian </li></ul></ul>
  1. A particular slide catching your eye?

    Clipping is a handy way to collect important slides you want to go back to later.

×