OL ICT Lesson 5: Operating Systems (මෙහෙයුම් පද්ධති)

Booting: BIOS initiates the computer and loads the OS into RAM.
User Interface: Provides a way for the user to interact with the computer (GUI or CUI).
Process Management: Scheduling and distributing CPU time among running processes.
Memory Management: Allocating RAM to programs and freeing it after use.
Device Management: Controlling peripherals via Device Drivers.
File Management: Organizing files/folders and controlling access.

O/L ICT Lesson 05: Operating Systems

Bilingual, exam-focused notes for Unit 05 of the Sri Lankan GCE Ordinary Level ICT syllabus (Grade 10). Covers functions of OS, types of OS, utilities, file management, and system concepts. Includes interactive simulators for memory, processes, and defragmentation, structured O/L essay questions with model answers, strictly four-option MCQs with explanations, global video resources, and bilingual flashcards.