Programming & Computer Science Answers

Draw the truth table for the following Boolean expression: X AND (X OR Y)

Briefly state and describe the main function of each the following computer hardware components:

a)        CPU

b)        RAM

c)        Motherboard

Give one advantage and one disadvantage of online banking to the

a) Bank

b) Customer

On-line banking has improved banking in most developed countries. It allows customers to access their accounts

24 hours a day without the need to open the doors of branches. The central computer runs most of the banking processes.

What do the following terms mean?

a) Online

b) Central computer

List THREE reasons why e-commerce may not be a good business strategy in Cameroon

Give two implications of e-commerce to society

Describe the following, stating an example where applicable in each case.

Simulation systems

Reservation systems

(i) Describe the following, stating an example where applicable in each case.

a)     Expert systems

b)    Geographical information systems

(i)       What is a robot?                                                                                        

(ii) State three advantages of robots over human workers.

consider the following sequence given by the recurrences realtion :

U1=-1 U2=1 U3=2 UN =(2*Un-1 ) - (5*Un-2) +(Un-3 +2) if (n>3)

write a program that enters an integer value n and then prints the value of n-th term Un and then sum of Un