Data Processing Paper 2, WASSCE (SC), 2016

Question 3

  1. (a)(i)   With the aid of a simple diagram, explain information processing.

(ii) Give one example of information transmission.

 

(b) Give one example of each of the following:

(i)   single user, single tasking operating system;
(ii)  single user, multitasking operating system;
(iii) multi user operating system.

 

(c) List four features of a Graphical User Interface.

 

Observation

The expected answers were:
3(a)(i)

Information transmission is the process of sending Information from one point to another through a  channel.


(ii)  Example:  Printing of document; classroom instruction, receiving radio signals; DSTV signals,    Telegraph, GSM, Photography, Facsimile, Town Crying, Smoke Message, Use of Birds, Story Telling, Signs/Signals, Internet, Satellite signals, Blowing Horns, Drum Beating, Fire Lighting etc.         

                                        
(b)  (i)      DOS, OS 2, PC-DOS, Palm-OS.                                                                                   
(ii)    MS Windows, Mac-OS, Linux                          
(iii)    Xenix, Zenix, Unix, Linux, Mac OS, VMS, Mainframe OS    

                                   
(c)  Features of a Graphical User Interface (GUI)
(i)  Windows
(ii)  Icons
(iii)  Menus
(iv)  Pointing device (mouse)


Candidates were expected to answer question on the concept of information transmission. However, a good number of candidates lacked knowledge on the topic.