KNEC 2005 Computer Applications Question Paper

1. (a) Outline FIVE advantages of application packages as compared to the in-house programs developed by the organization's programmers. (10 marks)
(b) Explain FIVE factors that the buyer intending to acquire an application package should consider. (10 marks)
2. (a) Explain the following functions of an operating system.
(i) Job scheduling
(ii) Memory allocation and loading of programs
(iii) Interface the user or the operator to the system's hardware. (9 marks)
(b) Explain any THREE characteristics of an operating system. (6 marks)
(c) Define the following service programs
(i) Text Editors
(ii)Loaders
(iii) Language Translators
3. (a) List FIVE controls to prevent computer fraud. (5 marks)
(b) Explain the following computer crimes
(i) Theft of computer time
(ii) Hacking
(iii) Sabotage
(c) Outline THREE Security measures against each of the following threats to computer security.
(i) Terrorist Attack
(ii) Fire
4. (a) Explain FOUR benefits from use of the internet. (8 marks)
(b) Explain FOUR problems on the internet. (8 marks)
(c) Define the following terms.
(i) Intranets
(ii) Extranets
5. (a) (i) Define the term "Paperless office
(ii) Explain two electronic publishing systems. (7 marks)
(b) Explain the stand alone word processors. (3 marks)
(c) Explain the following word-procesor facilities.
(i) Glossary
(ii) Text Editing
(iii) Line-wrap-around
(iv) Ranner
(v) Bullet (10 marks)
6. (a) Explain the impact of computer technology in
(i) Health care
(ii) Education, Science and Research (10 marks)
(b) (i) List FOUR services provided by a software house. (4 marks)
(ii) Outline THREE data processing facilities provided to clients by computer Bureaux. (6 marks)
7. (a) Explain the following schedulers
(i) Short term scheduler
(ii) Intermediate level scheduler (4 marks)
(b) (i)