Cpu on P01NT

The Basic Structure of Operating Systems

Tue, 25 Aug 2026 22:00:00 +0300

بسم الله

Peace be upon you. Today I would like to talk with you about the structural foundation of operating systems in general, attempting to cover the following points:

The Von Neumann architecture.
The central tasks of an operating system (OS Central Tasks).

Let us begin.

What Is an Operating System?

Everyone living in this modern, technology-rich age has dealt with an operating system one way or another, and everyone has heard the term “Operating Systems” or “OS”. But!

Computer Architecture & Organization

Tue, 25 Aug 2026 09:00:00 +0300

بسم الله

The scarcity and weakness of Arabic resources covering these topics was one of the main reasons behind writing this series — the goal is to close that gap, and I ask God to make this work sincerely for His sake.

God willing, these articles will be the solid foundation you can build upon. We will approach every topic hands-on: writing code in C, then looking at its footprint in Assembly. On with it.

Processor Structure & Functions

Tue, 25 Aug 2026 10:00:00 +0300

بسم الله

In the previous article we talked about computer architecture and organization and the basic parts of a computer. Today, God willing, we dive a little deeper into the processor itself: its components, its functions, and how they work together.

Data Path & Control Unit

The processor consists of fundamental units:

The Arithmetic Logic Unit (ALU), which performs arithmetic and logic operations.
The Control Unit (CU), which generates the control signals needed to coordinate the components.
Plus a set of fast-access registers.

These components divide into two main parts: