NATIONAL OPEN UNIVERSITY OF NIGERIA

UNIVERSITY VILLAGE, PLOT 91, CASDASTRAL ZONE, NNAMDI AZIKIWE EXPRESS WAY, JABI, ABUJA.
FACULTY OF SCIENCES
JANUARY 2021 EXAMINATION

Course Code: CIT 726

Course Title: Computers in Society

Time Allowed: 2hrs

Instructions: Answer question one (25 marks) compulsory and any other three (3) questions

Question One

a. List five (5) basic elements of the computer? 5marks

b. Without the development of the computer, our modern world of high technology would not have developed. Mention five (5) areas in which computers affect us all and where it can be used in many of today’s industries. 5marks

c. State and explain five (5) characteristics of a computer. 5marks

d. Mention four (4) features of an Operating System. 2marks

e. Briefly explain these elements of a desktop (i) Taskbar (ii) Shortcut (iii) My computer (iv) Recycle Bin (v) Program icon (vi) Desktop 3marks.

f. State the steps involved in creating a folder in Windows OS. 2marks

g. What is the Internet? 1mark

h. Write the full meaning of the following:

(i) LAN (ii) MAN (iii) WAN (iv) WWW 2marks

Question Two

a. What do you understand by the term “Word Processing”? 2marks

b. State four (4) common elements of spreadsheet and Word Processing programs 4marks

c. List three (3) examples each of Spreadsheet and Word Processing programs. 6marks

d. Explain how to save a document in Spreadsheet and Word Processing programs 3marks

Question Three

a. Define software and give two examples? 3marks

b. Differentiate between system software and application software 5marks

c. Outlines four (4) examples of system software 4marks

d. Lists three (3) examples of application software 3marks

Question Four

a. Describe a Computer Network? 2marks

b. Define the following terms in relation to the Internet (i) Website (ii) Home page (iii) Web browser (iv) Web page (v) Address bar 5marks

c. Give three (3) examples of web browser 3marks

d. What is the difference between intranets and extranets 5marks

Question Five

a. Outline six (6) effects of computers on our society 6marks

b. State four (4) disadvantages of computers on our society 4marks

c. What is the difference between browsing and downloading? 5markS