NECO 2026 COMPUTER STUDIES ANSWERS (OBJ & ESSAY)

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COMPUTER OBJ
01-10: BADDEBEEBA
11-20: EBCBEDBDDB
21-30: BCBCCEBCCB
31-40: EDDCCAAEBB
41-50: ABBBEBAACD
51-60: BCDBAAECCD

COMPLETED
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INSTRUCTION: ANSWER FOUR(4) QUESTIONS ONLY

 

(1ai)
A domain name is a unique and easy-to-remember name used to identify a website or computer on the Internet. It replaces the numerical IP address and enables users to access websites easily.

(1aii)
(i) .com – Used mainly for commercial and business organisations.
(ii) .edu – Used by educational institutions such as universities, colleges, and schools.

(1bi)
Auxiliary storage is non-volatile memory used for permanent storage of data, while main storage is volatile memory used for the temporary storage of data and instructions being processed by the CPU.

(1bii)
(i) Open the Microsoft Word document.
(ii) Click the Insert tab on the Ribbon.
(iii) Click Page Number in the Header & Footer group.
(iv) Choose the desired position (Top of Page, Bottom of Page, etc.) and select a page number style. The page numbers will be inserted automatically.
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(2ai)

(2aii)
(i) > (greater than)
(ii) < (less than)

(2bi)

(2bii)
An algorithm is a finite, logical, and well-defined sequence of step-by-step instructions for solving a problem or performing a specific task. It is designed to produce the correct result and must have a definite beginning and end.
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(3ai)
Router: A router connects two or more networks and directs data packets to the correct destination.
(3aii)
Modem: A modem converts digital signals to analogue signals and vice versa, enabling a computer to connect to the internet.
(3aiii)
Switch: A switch connects devices within the same network and forwards data only to the intended device.

(3b)
The binary number system is a base-2 number system that uses only two digits (0 and 1), while the octal number system is a base-8 number system that uses eight digits (0 – 7).

(3c)

CPU (Central Processing Unit):
The CPU is the brain of the computer. It processes data, performs arithmetic and logical operations through the Arithmetic Logic Unit (ALU), and controls the activities of all other parts of the computer through the Control Unit (CU).
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(4ai)
A compiler is a system software that translates an entire program written in a high-level programming language into machine code before the program is executed.

(4aii)

(4aiii)
(i) Install and regularly update antivirus software.
(ii) Use strong passwords and change them regularly.

(4b)
(i) The CPU loads the first number into a register, usually the Accumulator (ACC).
(ii) The second number is loaded into another register.
(iii) The Arithmetic Logic Unit (ALU) performs the addition of the two numbers.
(iv) The result is stored in the accumulator or another register before being transferred to memory or displayed as output.
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(5ai)
A communication system is a system that enables the transmission and reception of information or data between two or more devices or people through a communication medium.

(5aii)
(i) It improves communication through email, mobile phones, and the Internet.
(ii) It provides quick and easy access to information for education, business, and research.

(5aiii)
An icon is a small graphical symbol or picture on a computer screen that represents a program, file, folder, or command and can be clicked to perform a specific function.

(5bi)
(i) To increase the speed and efficiency of business operations.
(ii) To improve the accuracy of data processing and reduce errors.

(5bii)
CorelDraw is a graphics design application used for creating and editing vector graphics such as logos, banners, and illustrations, while Microsoft PowerPoint is a presentation application used for creating and displaying slide-based presentations for meetings, teaching, and seminars.
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(6ai)

(6aii)
(i) It is expensive to install and maintain because it requires many cables and network devices.
(ii) It is complex to set up and manage due to the large number of connections between devices.

(6bi)
A form is a database object that provides a user-friendly interface for entering, editing, viewing, and retrieving records from a database. It allows users to interact with data easily without directly accessing the tables.

(6bii)
(i) Blaise Pascal: invented the Pascaline, an early mechanical calculator.
(ii) Charles Babbage: invented Analytical Engine.

(6biii)
(i) Print Layout View.
(ii) Web Layout View.
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