Basics of OS (Computer System Operation)

OS: Basics of Operating System (Computer System Operation)
Topics Discussed:
1. Basics of OS.
2. The basic structure of a computer system.
3. CPU.
4. Device Controllers and Memory Controller.
5. Bootstrap Program.
6. Interrupts and System Calls.

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Music:
Axol x Alex Skrindo - You [NCS Release]

#OperatingSystemByNeso #os #OperatingSystem #OSBasics #ComputerSystemOperation

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[wadebanks]

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Thank you

[hudie]

0:38 You must know structure of computer system to understand how OS works

1:41 A computer has one or more CPU s and a number of device controllers connected through a Bus that provides access to shared memory .

2:27 CPU - Central Processing Unit

4:09 Hardware devices are connected to device controllers / adapters

5:20 Shared memory (the memory that may be simultaneously accessed by multiple programs)

7:56 To ensure orderly access to the ‘ shared memory ’ requires a memory controller. The function of the memory controller is to synchronise access to the main memory.

9:38 Bootstrap program
11:26 Kernel
12:00 Interrupt
13:52 System call

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Clear Elaboration by the speaker.

This tutorial contains a clear explanation of structure of computer ( device, device controllers, bus, memory and CPU). Moreover it explains the term interrupts distinguishing them from system call. In addition to the explanation of interrupts, it also explains how CPU attends to interrupts by execution interrupts services routines.

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