The National Examination Council (NECO) plays a pivotal role in evaluating students, with NECO Computer Studies Questions being crucial for assessing computer science proficiency.
In today's technology-driven world, having a solid grasp of computer studies is indispensable. Let's delve into previous NECO Computer Studies questions and their corresponding answers to aid students in preparing for their computer studies exams.
NECO Computer Studies Questions
(1a) Write short notes on these components of the Central Processing Unit.
(ii) Control unit
(ii) Arithmetic logic unit
(iii) Registers
(b) (i) Define phishing
(ii) State two factors affecting the speed of a data transfer.
(iii) List two examples of antivirus software
2(a) What is a compiler?
(ii) Write a BASIC program to calculate the area of a circle of radius r.
(b) State the function of the following keys in Microsoft Word:
(i) F5
(ii) F1
(3) (i) Mention three top-level domains and their uses.
(ii) List two examples of an internet browser.
(4) How do important things affect how the digital world works?
Answers to NECO Computer Studies Questions
Answer One
1a. (i) Control Unit: The control unit is responsible for managing and coordinating the operations of the CPU.
It interprets and executes instructions from the computer’s memory.
It controls the flow of data within the CPU and between the CPU and other hardware components.
(ii) Arithmetic Logic Unit (ALU): The ALU performs arithmetic and logical operations on data.
It handles mathematical calculations, such as addition, subtraction, multiplication, and division.
It also performs logical operations like AND, OR, and NOT, which are essential for decision-making in a computer.
(iii) Registers: Registers are small, high-speed storage locations within the CPU.
They store temporary data and instructions needed for immediate processing.
Examples include the instruction register (IR), memory address register (MAR), and memory data register (MDR).
(b) (i) Phishing: Phishing is a cyber-attack method where attackers deceive individuals into providing sensitive information, such as usernames, passwords, or financial details, by posing as a trustworthy entity in electronic communication.
(ii) Factors affecting data transfer speed:
Bandwidth: The amount of data that can be transmitted in a given time.
Latency: The delay between the initiation and execution of a data transfer operation.
(iii) Examples of Antivirus Software:
(a) Norton Antivirus
(b) McAfee Antivirus
Answer Two
(2a) (i) A compiler is a program that translates the entire source code of a high-level programming language into machine code or an intermediate code.
The resulting code can be executed independently of the source code.
(ii) BASIC program to calculate the area of a circle:
10 INPUT “Enter the radius (r): “, R
20 LET A = 3.14159 * R * R
30 PRINT “The area of the circle is “; A
(b) F5 is the shortcut key for the “Go To” function in Microsoft Word. It helps in going to a specific page, section, line, or other elements within the document.
(ii) F1 is the key to accessing the Help feature in Microsoft Word. It provides assistance and information about various functions and features.
Answer Three
(3) (i) Top-level domains and uses:
.com: Commercial entities and businesses.
.gov: Government agencies.
.edu: Educational institutions.
(ii) Examples of internet browsers:
(a) Google Chrome
(a) Mozilla Firefox
Answer Four
(4) (i) Bandwidth: A range of frequencies within a band, in particular, that is used for transmitting a signal.
(ii) Bookmark: A bookmark is a method of saving a web page’s address or is a clickable object that moves to a certain spot on a web page.
(iii) Cookies: This is a small amount of data generated by a website and saved by your web browser.
(iv) Homepage: This is a webpage that serves as the starting point of the website.
(v) Server: a server is a computer designed to process requests and deliver data to other (client) computers over a local network or the Internet.
(vi) Workstation: a computer dedicated to a user or group of users engaged in business or professional work. It includes one or more high-resolution displays and a faster processor than a personal computer (PC).
NECO Computer Studies Questions are invaluable for assessing students' comprehension of vital computer science concepts. These materials aid in familiarizing students with the exam format and content, paving the way for success in their computer studies examinations.
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