1 / 9

Unveiling the Operating System: A Key to Computer Systems

Explore the essential role of operating systems in computer systems, from initializing hardware to managing program execution. Learn about the parts, features, and significance of OS in facilitating software development and system operations.

yamal
Download Presentation

Unveiling the Operating System: A Key to Computer Systems

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. The Operating System By J. W. Rider 2 September 2003

  2. A working definition • Software (program and/or data)… • … initializes hardware components • … interface with users and/or programs • … manage program execution • Examples: • CP/M, DOS, Univac Exec, Genie, Linux, MacOS, MS Windows, Multics, OS, p-System, Share/7, Solaris, Tenex, T.H.E., TOPS, Unix, VMS

  3. Tip of the Iceberg • Most users might think of the OS as just what they can see… • But, most of the OS proper is hidden out of sight.

  4. Systems existed before the OS • Originally, computer systems were designed for a specific purpose. One computer; one application. App App App App

  5. Reusable computer systems • General-purpose computers made programming a separate discipline. One computer; many applications. App App App App

  6. The OS makes distributed software practical • The advent of the OS made application and systems programming separate disciplines. Application OS OS

  7. Parts of the OS • Kernel • The barest essential code • Services • Device drivers • Application Programming Interface (API) • Shell • What the user sees

  8. OS Features • Task scheduling • Input/output functions • Library routines • Named file system • Logging • Multiuser, multitasking, multithreading • Memory management

  9. OS “Package” • OS Proper • Other system software • Optional hardware drivers • Development software • Backup and recovery • Other application software • Word processing • Data-base management

More Related