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Functions carried out by different operating systems
The below is a list of functions carried out by different operating systems:
- Provides a user interface
- Device management (input/output control)
- Security (for example log on, passwords, etc.)
- Handles interrupts
- Spooling
- Memory management
- Multitasking
- Batch processing
- Multiprogramming
- Error reporting and handling
- Loading and running software
- Processor management
- Maintain user accounts
- Utilities (for example copy, save, re-name, etc.)
The Concept of Concurrent and Parallel Execution Real world systems are concurrent in nature and computer science is about modeling the real world. Illustrations of real world
As a resource manager As a virtual machine
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i wants to know the methods and process of substitution and transposition cipher with examples.
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