Welcome to “Naijaclass Academy“ For Neco 2025 Data Processing Question And Answer Expo

DATA PROCESSING OBJ
01-10: AABDDAAEEB
11-20: ABABDAECCA
21-30: EADDAABAAB
31-40: DCCCACAABC
41-50: BCBDBABADA
51-60: CCAADDACEA
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NECO DATA PROCESSING THEORY ANSWERS

NUMBER ONE

(1ai) Digitalization refers to the process of converting information or processes into digital formats, using digital technologies such as computers, software, and networks. This enables efficient storage, processing, and transmission of data, and has transformed various aspects of modern life, including business, education, healthcare, and communication.

(1ai) PICK ANY 2
(i)Increased efficiency : Digitalization automates processes, reducing manual labor and increasing productivity.
(ii)Improved accuracy : Digital systems minimize errors, ensuring accurate data processing and analysis.
(iii) Enhanced accessibility : Digitalization enables access to information and services from anywhere, at any time.
(iv) Cost savings: Digitalization reduces costs associated with physical storage, paper-based processes, and manual labor.
(v)Faster communication : Digitalization enables rapid communication and collaboration, facilitating global connections.

(1bi) TABULATE

| Scientist | Invention | Function |
| ——— | ——— | ——– |
| Charles Babbage | Difference Engine | Mechanical calculator for mathematical calculations |
| Blaise Pascal | Pascaline | Mechanical calculator for arithmetic calculations |

(1bii)
143 ÷ 2 = 71 remainder 1
71 ÷ 2 = 35 remainder 1
35 ÷ 2 = 17 remainder 1
17 ÷ 2 = 8 remainder 1
8 ÷ 2 = 4 remainder 0
4 ÷ 2 = 2 remainder 0
2 ÷ 2 = 1 remainder 0
1 ÷ 2 = 0 remainder 1

= 10001111

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(2ai) Laptop

(2aii) Server

(2bi) A Server is a computer designed to provide services, resources, and data to other computers, devices, or users over a network. Its primary function is to manage and distribute resources, such as files, emails, or web pages, to clients. Servers are typically more powerful than personal computers and are designed to handle high traffic, large storage needs, and multiple user requests.

(2ci) PICK ANY THREE (3)
(i)Education : Online learning platforms, virtual classrooms, and educational software.
(ii) Healthcare : Medical records management, telemedicine, and medical research.
(iii) Business : E-commerce, online banking, and enterprise resource planning.
(iv) Communication : Email, social media, and instant messaging.
(v) Entertainment : Online gaming, streaming services, and digital media.
(vi) Government : E-governance, online services, and public administration.

(2c) PICK ANY THREE (3)
(i)Cybersecurity threats : Hacking, malware, and other cyber threats can compromise personal data and disrupt services.
(ii) Digital divide. : Unequal access to ICT can exacerbate social and economic inequalities.
(iii) Job displacement : Automation and AI can lead to job losses and displacement.
(iv) Social isolation : Over-reliance on digital communication can lead to social isolation and decreased face-to-face interaction.
(v) Addiction : Excessive use of ICT can lead to addiction and negative impacts on mental and physical health.
(vi) Misinformation : ICT can facilitate the spread of misinformation and disinformation, leading to confusion and harm.

NUMBER THREE

(3ai)
A word processing package is a software application used to create, edit, and format text documents. Examples include Microsoft Word, Google Docs, and LibreOffice Writer.

(3aii)
(i)Microsoft Word : One feature is Text Formatting, which allows users to change font styles, sizes, colors, and more.
(ii) Microsoft Excel : One feature is Formulas and Functions , which enables users to perform calculations, data analysis, and data manipulation.

(3b)
(i) Select the text you want to format.
(iii)To make the text bold, click the “B” button in the toolbar or press Ctrl+B.
(iii)To make the text litalic, click the “I” button in the toolbar or press Ctrl+I.
(iv) To underline the text, click the “U” button in the toolbar or press Ctrl+U.

(3ci) Range refers to a group of cells that can be selected and manipulated together. A range can be a single cell, a row, a column, or a rectangular block of cells.

(3cii) Worksheet is a single page or sheet within a workbook that contains a grid of cells where data can be entered, calculated, and manipulated. Each worksheet can have its own set of data, formulas, and formatting.

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(4ai)A data model is a conceptual representation of data structures and relationships within a database.

(4aii)
(i)It helps in understanding the data requirements.
(ii) It provides a blueprint for database design.

(4b)Web design focuses on the visual and user experience aspects of a website, while graphic packages are software tools used to create and edit visual elements like images and graphics.

(4c)
(i)Single-User, Single-Task Operating System :
This type of operating system allows only one user to perform one task at a time. Examples include older mobile operating systems or embedded systems.

(ii) Multi-User, Multi-Tasking Operating System
This type of operating : system allows multiple users to access the system simultaneously and perform multiple tasks at the same time. Examples include Windows, macOS, and Linux.

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NUMBER FIVE

(5ai) The Internet is a global network connecting computers worldwide, enabling communication and information sharing.

(5aii) Sign-in is the process of logging into an existing account, while sign-up is the process of creating a new account.

(5b)
(i)Improved data availability.
(ii)Enhanced scalability.

(5ci) URL: Uniform Resource Locator.
(ii) ISP: Internet Service Provider.
(iii) PPP: Point-to-Point Protocol.
(iv) HTML: HyperText Markup Language.
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Neco 2025 Data Processing Expo, Neco 2025 Data Processing Question And Answer Expo