Computer Science Ordinary Level - Mock Examination Notes

General Certificate of Education and Intermediate Technical and Vocational Education Regional Mock Examination

Examination Details

Subject: Computer Science
Level: Ordinary Level
Time Allowed: Two and a half hours

Instructions to Candidates

Mobile phones are NOT ALLOWED.
Carry out ALL tasks.
Importance is given to accuracy, layout, and labeling of drawings and computer-generated outputs.
Good English and orderly presentation are necessary.
Write algorithms in the answer booklet.
Record any information that would make it easier to understand how you carried out tasks or answered questions in your answer booklet.
Print out a single copy of relevant program fragments at different times and notify the instructor if a printout was not done.
Either Standard [ISO] Pascal or the [ANSI] C or C++ programming language standards may be used when an imperative programming language (PL) is required.
Supervisors will assist in recording details of intermediate work on the computer if needed.
Do not write on the first page of your answer booklet.
Notify the instructor if soft copy information is not available.

Task 1: Word Processing (20 Marks)

Title: The Evolution of Computing Technology: Shaping the Future

Computing technology has become integral to daily lives, revolutionizing communication, work, and access to information. From room-sized mainframe computers to compact devices, the evolution has been remarkable.

The Birth of Computing Technology

Traced back to the mid-20th century.
First electronic computers were developed, powered by vacuum tubes.
These machines were slow and had limited processing power but laid the foundation.

Mobile Computing and Smart Devices

The 21st century witnessed the rise of mobile computing.
Characterized by smartphones and tablets.
Portable devices equipped with powerful processors and internet connectivity provide instant access to applications, services, and information.

Artificial Intelligence and Machine Learning

Witnessing rapid advancements in AI and ML.
AI technologies like virtual assistants and autonomous vehicles are increasingly integrated.
ML algorithms are transforming industries, making predictions and recommendations based on vast data amounts.
Potential to revolutionize sectors from healthcare to transportation.

Task Instructions:

Give the name and version of the word processor installed (1 mark).
Open a new word processor document: * Set the page orientation to landscape. * Set the left, right, top, and bottom margins to $2.5cm$ (2 marks).
Type the entire passage above (5 marks).
Format the passage: * Title: Arial Bold, 20 points font size, blue color, centered, and underlined (2 marks). * Rest of the paragraph: Times New Roman, 12 Points font size, and aligned Justified (2 marks). * Set Line spacing to 1.5 (1 mark).
Format the first and second paragraphs to have 3 columns, and the rest to have two columns each (2 marks).
Insert: * A Drop cap on the beginning letters of each paragraph (1 mark). * Any ICT device (computer, phone, printer etc.) in the middle of paragraphs 3 and 4 and bottom right of the last paragraph (2 marks). * A header that reads “The evolution of computing technology: shaping the future” with font type Times New Roman, italic, and font size 10 (1 marks).
Insert a page border (not a Line) of your choice (1 mark).
Save your work as task1 (0 marks).
Make sure your work is on a single page and Print it (0 marks).

Task 2: Spreadsheet (20 Marks)

Instructions

Reproduce the figure provided using appropriate spreadsheet software. * Insert an appropriate formula to compute the number of subjects sat in for by Dorinda in cell F4 (2 marks). * Copy the formula to calculate the number of subjects for the other students (1 mark).
Calculate the total marks for DORINDA in cell I4 and copy through for the others (2 marks).
* In cell M4, compute the average of DORINDA using an appropriate spreadsheet formula (2 marks). * Extend the formula to the other cells to obtain the averages of the other students (1 mark).
* In cell N4, insert a formula that will determine the position (rank) of DORINDA in that exam (2 marks). * Copy the formula to the other cells to obtain the rank of the other students (1 mark).
* In cell O4 insert a remark of "Fail" for average less than 10, "Pass" for average greater than 10, "Excellent" for average above 15 (2 marks). * Extend the averages to the other cells to obtain the remark of the other students (1 mark).
Represent the results on a bar chart with students' names on the horizontal axis and their corresponding averages on the vertical axis (1 mark).

Task 3: HTML and Programming (20 Marks)

Part a: HTML

Type the following HTML code in an appropriate environment and print the output of your code.

<html>
    <head>
        <title>Identify the body of the CPU (Microprocessor)</title>
    </head>
    <body>
        <h1>The CPU (Microprocessor)</h1>
        <p>The CPU (microprocessor) is divided into three sub-components:</p>
        <ul>
            <li>The Control Unit (CU)</li>
            <li>The Arithmetic Logic Unit (ALU)</li>
            <li>The Registers</li>
        </ul>
        <h2>Main Functions of these Components</h2>
        <b>The Control Unit (CU)</b>
        <ul>
            <li>Function: To fetch and decode instructions/data</li>
        </ul>
        <b>The ALU</b>
        <ul>
            <li>Function: To execute instructions and data</li>
            <li>It performs all the Arithmetic and Logical operations inside the CPU</li>
        </ul>
        <b>The Registers</b>
        <ul>
            <li>Function: Store instructions temporarily used by the processor during processing</li>
        </ul>
    </body>
</html>

Part b: Programming (C or Pascal)

The code below can be executed with either a C or Pascal program. Choose an appropriate environment and answer the questions that follow:

C Program

#include <stdio.h>

int main(void) {
    int i;
    for (i = 1; i <= 10; i++) {
        if (i < 5) {
            printf("%d * %d = %d\n", i, i, i * i);
        } else {
            printf("%d / %d = %d\n", i, i, i / i);
        }
    }
    return 0;
}

Pascal Program

PROGRAM Numbers;
VAR
    i: integer;
BEGIN
    for i := 1 to 10 do
    begin
        if i < 5 then
            writeln(i, ' * ', i, ' = ', i * i)
        else
            writeln(i, ' / ', i, ' = ', i div i);
    end;
    readln;
END.

Task Instructions

Choose either a C or Pascal program development environment (IDE) and key in the program.
Compile the program and correct all errors.
Save as Task3b.
Run the program and write the output you observe.
Name any programming construct that is used in the program (loop).