Data Processing Paper 2, WASSCE (SC), 2021

Question 3

 

(a) (i)  State three ways of classifying computers.

(ii)   Differentiate between digital and analog computers

(b) List three positive impacts of ICT on the society

(c) Give two types of information transmission medium

 

The question tested the candidates’ knowledge of classification of computers.

Observation

The expected answer is:

(a)      Computer classification

(i) Ways of classifying computers

        • By Type
        • By Size
        • By Functionality/Purpose/Usage
        • By Technology/Generation                              

 

(ii)Digital vs Analog computers

Digital Computer

Analog Computer

It counts numbers

It measures values

This handles discrete values

This handles continuous values

                                                                                                                

Positive impacts of ICT on the society

      • faster communication
      • lower communication
      • paperless environment
      • effective sharing of information
      • borderless communication
      • improved healthcare delivery
      • improved teaching and learning                                           
    • Types of information transmission medium
      • satellite
      • wireless
      • cable                                                                               

 

It was reported that most of the candidates who attempted this question could not state the proper classification of computers.