Neco Computer Studies Past Questions and Answers

Question 61:

• NECO 2014

(a)(i) List three classes of computer. (ii) Difference between Analog and Digital computers.
(b) Mention two types of memory.
(c) Give tw0 examples of secondary storage.
(d) Convert 1.44MB to bytes.

Question 62:

• NECO 2014

(a) What is an operating system?
(b) Give three examples of operating system.
(c) State two differences between the floppy disk and compact disc.
(d) Write a Basic program to calculate the perimeter of a rectangle.

Question 63:

• NECO 2014

(a) Draw the AND gate and produce its truth table
(b) List two examples of an output device.
(c)(i) What is a computer virus.
(ii) Give two examples of computer virus.
(d) Convent 28C in hexadecimal to decimal number

Question 64:

• NECO 2014

(a) List two operations that can be performed on computer file.
(b) State three precautions to be taken in order to secure a computer file.
(c) State three advantages of computerized file over manual files.
(d)What is an antivirus?

Question 65:

• NECO 2014

Briefly explain the following terms: (a) website (b) protocols (c) webpage (d) e-commerce (e) e-mails.