English | Size: 1.9 GB
Genre: eLearning
Core Concepts, Threads and Process
What you’ll learn
Introduce the key role of an Operating System
Insist the Process Management functions of an Operating System
Emphasize the importance of Memory Management concepts of an Operating system
Realize the significance of Device Management part of an Operating system
The operating system acts as an Interface between the user and computer hardware, OS is designed in such a way, that it is convenient to use in an efficient manner. Tasks performed by Operating System are It manages computer hardware, It controls and coordinates the computer H/W and specifies, how various resources like hardware and software can be used in an efficient manner. Users want ease of use and good performance & highly convenience. Users can share the terminals, connected to mainframe or minicomputer. Individual Users with dedicate systems such as workstations use shared resources from servers or Printers. In case of hand held devices, the operating system is designed for individual usability. Example: OS on iPhone, or any Android phone. OS is a resource allocator
Manages all resources
Conflicting requests between resources are managed for efficient use
◦OS is a control program
Controls execution of programs to prevent errors and improper use of the computer
Objectives of Operating system
Convenience
Efficiency
Ability to evolve
It specifies how resources are convenient to use in an efficient manner.
OS as a service routine
1.Program development.
Ex: Editors & Debuggers
1.Program Execution
2.Access I/O devices and controlling access to I/O devices
3.Error detection & response
4.Performance maintenance
Who this course is for:
Beginners in Computer Science
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