1. F453 ADVANCED COMPUTING THEORY 3.3.1 OPERATING SYSTEMS Humara Malik 1

2. RESOURCES Website: https://hmalik2015.wordpress.com Padlet: http://padlet.com/humara_malik/UTC Humara Malik 2

3. RECAP F451 – Operating systems What is an Operating System? On padlet, write a definition. Recap quiz: http://www.socrative.com Login as STUDENT Teacher’s room code : UTC Enter your Name LIVE Quiz!! Humara Malik 3

4. OBJECTIVES 3.3.1 Functions of an operating system a)describe the main functions of operating system. Describe, at least a sentence required with up to two marks awarded Functions, what does it do? Humara Malik 4

5. INTRODUCTION An operating system is a collection of programs and utilities that manages the computer's hardware and software. The operating system looks after the basic functions of the computer. Humara Malik 5

6. FUNCTIONS OF AN OPERATING SYSTEM (OS ) Functions of OS Memory management Resource management File management Device management User interface Humara Malik 6

7. ACTIVITY 1 ( 10 MINS ) In pairs create a short PowerPoint presentation on one of the functions of an operating system. Your teacher will give you the function. Present to the class. You should be making notes on others presentation. Humara Malik 7

8. RESEARCH Websites Memory management – http://computer.howstuffworks.com/5-important-operating- system-jobs.htm#page=4http://computer.howstuffworks.com/5-important-operating- system-jobs.htm#page=4 Device management – http://computer.howstuffworks.com/5-important-operating- system-jobs.htm#page=1http://computer.howstuffworks.com/5-important-operating- system-jobs.htm#page=1 Resource management- http://computer.howstuffworks.com/5-important-operating- system-jobs.htm#page=5http://computer.howstuffworks.com/5-important-operating- system-jobs.htm#page=5 User interface – http://computer.howstuffworks.com/operating-system10.htm File management – http://computer.howstuffworks.com/5-important-operating- system-jobs.htm#page=3http://computer.howstuffworks.com/5-important-operating- system-jobs.htm#page=3 Humara Malik 8

9. SUMMARY On padlet, 1.Write one thing that you have learnt in this lesson. 2.How could the lesson be improved? Humara Malik 9