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: CIT736

COURSE TITLE: COMPUTER PROGRAMMING

CREDIT UNIT: 2

TIME ALLOWED : 2HRS

INSTRUCTION: ANSWER QUESTION ONE AND ANY THREE QUESTIONS

1. (a) Differentiate between computer program, computer programming, and computer programmer. (6marks)

(b) What is a Binary numeral system? (4 marks)

(c) Write an example of a programme structure in Fortran 90/95 program. (5 marks)

(d) List and explain any 5 standard input and output routines supported in Pascal. (5 marks)
(e) With suitable example, differentiate between REAL and INTEGER numbers. (5 marks)

2. (a) Briefly describe the role of debugging in computer programming project (7 marks)

(b) Differentiate between Correcting Design-Time errors and Runtime errors (8marks)

3. (a) List and explain 5 types of errors known to you. (10 marks)

(b) What is a Translator (5 marks).

4(a) State and explain the general form of a computer program main unit (main program). (10 marks) (b) Briefly differentiate between the followings: (5 marks)

i. Assembler

ii. Compiler

5. Using the FORTRAN 90/95, write a program that will compute and output the sum and product of three numbers. (15 marks)