Railways Notes / Computer Awareness
RRB NTPC · Group D Preparation

Computer
Awareness

From fundamentals to the latest technologies — the complete Computer Awareness syllabus for RRB NTPC & Group D, with key facts, terms, and tables. No PDF, no signup required.

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33 ChaptersFull topic coverage
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All Chapters

Tap a chapter to start reading. Each opens its own dedicated notes page with facts, tables, and key terms.

1
Introduction to Computers
What a computer is, its basic characteristics, and the fundamental Input-Process
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2
History and Generations of Computers
The five generations of computers, from vacuum tubes to artificial intelligence,
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3
Types of Computers
Classification of computers by size/capability (supercomputer to microcomputer)
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4
Computer Hardware
The physical, touchable components of a computer system
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5
Computer Software
System vs application software
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6
Input and Output Devices
Devices that feed data into the computer and devices that deliver processed resu
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7
Memory and Storage Devices
Primary vs secondary memory, RAM vs ROM, and the units of digital storage from b
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8
Central Processing Unit (CPU)
The 'brain' of the computer
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9
Operating System
The system software that manages hardware and provides the platform for all othe
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10
Microsoft Windows
Key features and terminology of the Windows OS
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11
Microsoft Word
Core Word features and the shortcut keys most frequently tested in RRB Computer
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12
Microsoft Excel
Spreadsheet fundamentals
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13
Microsoft PowerPoint
Presentation software fundamentals
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14
Internet and Web Browsers
How the internet works, key terminology, and the software used to access it
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15
E-mail and Communication
Electronic mail fundamentals
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16
Computer Networks
How computers connect and communicate
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17
Database Management System (DBMS)
How structured data is stored and managed
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18
Programming Languages
The generations of programming languages, from machine code to modern high-level
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19
Computer Number System
The four number systems computers use to represent data
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20
Binary Arithmetic
Converting between number systems and performing basic arithmetic in binary.
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21
Computer Security and Cyber Security
Protecting systems and data from unauthorised access
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22
Computer Viruses and Antivirus
Types of malicious software and how antivirus programs detect and remove them.
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23
Multimedia and Graphics
How computers handle images, audio, and video, plus common file format types use
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24
Cloud Computing
Delivering computing resources over the internet
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25
Artificial Intelligence (AI) and Machine Learning
Core AI/ML concepts and terminology now regularly tested in updated RRB Computer
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26
Internet of Things (IoT)
How everyday physical devices connect to the internet to collect and exchange da
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27
Mobile Computing
Portable computing devices and the wireless technologies that keep them connecte
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28
Shortcut Keys and Computer Tricks
The universal Windows shortcut keys used across almost every application
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29
Important Computer Abbreviations
Hardware, software, and operating-system related abbreviations frequently tested
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30
Computer Full Forms
Networking, internet, and security-related full forms
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31
Computer Terminologies
A working glossary of everyday computing terms not covered as standalone chapters
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32
Latest Computer Technologies
Emerging technologies beyond AI, IoT, and Cloud
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33
Important Computer Facts
Notable firsts, records, and quick facts from computing history
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