Operating System CS Thinking Example 4
Follow the full solution, then compare it with the other examples linked below.
Example 4
hardExplain the concept of user permissions in an operating system. Why does a school network restrict what students can install or access?
Solution
- 1 Step 1: The OS assigns different permission levels to users: administrators can install software, change settings, and access all files. Standard users have limited access. The OS enforces these restrictions.
- 2 Step 2: Schools restrict student permissions to: prevent malware installation, protect the network from unauthorised changes, ensure appropriate content access, and maintain system stability for all users.
- 3 Step 3: This is the principle of least privilege — users should only have the permissions they need for their tasks. It is a fundamental security practice.
Answer
Permissions control what users can do. Schools restrict student access to prevent malware, protect the network, and maintain stability. This follows the principle of least privilege.
User permissions are a core OS security feature. The principle of least privilege minimises the damage that can be caused by mistakes or malicious actions.
About Operating System
System software that manages hardware resources (processor, memory, storage, devices) and provides services for application programs. The operating system acts as the intermediary between the user and the hardware, handling tasks like multitasking, file management, and device communication.
Learn more about Operating System →More Operating System Examples
Example 1 easy
What is an operating system and name three things it manages.
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