Introduction to Computer Science 1 (CSCS2101)
Mathematics and Computer Science - MCS
Semester: First Semester
Level: 200
Year: 2016
THE UNIVERSITY OF BAMENDA FACULTY OF SCIENCE
DEPARTMENT OF MATHEMATICS AND COMPUTER SCIENCE
END-OF-FIRST SEMESTER EXAMINATION 2016/2017 CSCS2101: INTRO TO COMPUTER SCIENCE I
ANSWER ALL QUESTIONS TIME ALLOWED: 3 H
NB: For the MCQs, choose from options a-d and note that only one of these options is the correct answer
EXAMINER: Dr S C Forbacha
Section A
1) During a write cycle, data generated by the program flows: 1 mark
(a) From the CPU to the memory where it is stored for later use
(b) From the CPU requesting the retrieval of data from the memory to be moved to the CPU
(c) From the CPU to the bus where it is held
(d) (d) None of the above
2) Which of these is primary storage? 1 mark
(a) HDD
(b) SSHD
(c) RAM
(d) DVD
3) Data is stored on a magnetic disk in: 1 mark
(a) The optical tracks
(b) The transistors
(c) Pits
(d) sectors
4) The motherboard, processor and memory on the desktop PC are housed in: 1 mark
a) The system unit
b) The monitor unit
c) The pointing device unit
d) The liquid crystal display unit
5) The idea of communicating 2n algorithm via holes in paper was developed by: 1 mark
a) Charles Babbage
b) Joseph Jacquard
(c) Herman Hollerith
(d) George Stibitz
6) Numbers with fractional parts such as 4V2 are represented using: 1 mark
7) (a) Floating-point notation
(b) Flaoting-point notation
(c) Fluting-point notation
(d) Flotting-point notation
8) The concept of storing a computer's program in the main memory is referred to as: 1 mark
(a) The application-program concept
(b) The memory-application concept
(c) The stored-program concept
(d) The ultimate-program concept
9) A computer's main memory is organised in manageable units known as: 1 mark
(a) Bytes
(b) Bits
(c) Megabits
(d) (d) Cells
www.schoolfaqs.net
Page 2 of 2
Section B
1) What is a computer program? 2 marks
2) The microprocessor is divided into two units. Name them and give a brief function of each unit. 4 marks (2,2)
3) What advantage do outer tracks especially in high capacity magnetic disk storage systems have over inners one? State
4) How many bits would be in the memory of a computer with 4KB memory? 2 marks
5) What information must the CPU supply to the memory circuitry to write a value into a memory cell? 2 marks
6) Convert each of the following base ten representations to its equivalent binary form. 2 marks (1,1)
(a) 113
(b) 15
7) Express the value 6
3
/
8
into the binary notation: 2 mark
8) What is the importance of storing information at a linear density over an entire spirated track within a CD storage system? 5
marks
9) State the two factors that affect the overall speed and efficiency of a computer. 2 marks
www.schoolfaqs.net
