Cork Institute of Technology
Higher Certificate in Computing in Information Technology
Support - Stage 1
(NFQ – Level 6)
Autumn 2006
Operating Systems
(Time: 2 Hours)
Instructions: Examiners: Mrs Gemma O’Callaghan
Answer any four questions Mr. James Greenslade
All questions carry equal marks Mr. John Walsh
Question 1:
(a) What is an operating system? What is its purpose?
(6 marks)
(b) Describe 4 primary services provided by an operating system.
(12 marks)
(c) Discuss the main functions of the kernel.
(7 marks)
Question 2:
(a) What is a file? What operations can be performed on files?
(8 marks)
(b) Describe some of the responsibilities that a file system must undertake.
(8 marks)
(c) Describe the differences between single-level and hierarchical file systems.
(6 marks)
(d) Discuss the concept of a link in relation to directories.
(3 marks)
