Question 1 Discuss the following with respect to Operating Systems:

1. Operating System Components
2. Operating System Services

Question 2 Describe the theory behind Paging and Segmentation in Operating Systems.

Question 3 Describe the theory behind Space Management in File systems.

Question 4 Discuss the following concepts with reference to Unix Operating System:

1. Unix Architecture
2. Process Control Mechanisms
3. Environment Variables and Shells
4. Layers of UNIX Operating System

Question 5 Discuss the concept of File substitution with respect to managing data files in UNIX.

Question 6 Discuss the following:

1. File Substitution
2. I/O Control