Operating System Capsule

 Operating System Capsule


Topic Covered:

  • What operating systems do?
  • Computer System Organization.
  • Operating System Structure.
  • Process management.
  • Memory management.
  • Storage management.

What operating systems do?

  • An OS is an intermediary between the user of the computer & the computer hardware.
  • The purpose of an OS is to provide a environment in which the user can execute the program in convenient & efficient manner.

Computer System Organization :

  • A computer system is basically a machine that simplifies complicated tasks.

Operating System Structure :

  • The layers of computer architecture are the hardware, operating system, software, and user layers.


Process management:

  • A process is a program in execution.
  • Process management involves various tasks like creation, scheduling, termination of processes, and a dead lock.
  • It handles operations by performing tasks like process scheduling and such as resource allocation.

Memory management :

  • Memory management is the process of controlling and coordinating computer memory, assigning portions called blocks to various running programs to optimize overall system performance. 
  • Memory management resides in hardware, in the OS (operating system), and in programs and applications.


Storage management :    

  • Storage management refers to the software and processes that improve the performance of data storage resources. It may include network virtualization, replication, mirroring, security, compression, deduplication, traffic analysis, process automation, storage provisioning and memory management.



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