Date: August 29, 2024

Topic: Basic OS Services

Recall

Operating systems do system calls to perform certain operations requested from the applications to the hardware

Linux and Windows share similar functionality although called differently

Notes

Basic OS Services

Types of services:

• Process management
• File management
• Device management
• Memory management
• Storage management
• Security
• Etc..

Operating systems can do the above through system calls

Windows and Linux System Calls

Generally, Windows and Linux provide the same functionality although named differently

Example 64bit Linux System Calls

• Sending a signal to a process: kill (can be used to send a variety of signals)
• Setting the group identity of a process: setgid
• Mounting a file system: mount
• Read/write system parameters sysctl

<aside> 📌 SUMMARY: Operating systems can perform some common services across different platforms (Windows / Linux etc)

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