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Study Notes

Computer Knowledge Notes: Chapter-wise Free PDF

Computer basics, MS Office, Internet, Networking and Shortcuts most asked in UPSC exams.

1

Computer Basics Notes: Hardware and Software for Competitive

Easy computer basics notes: generations, input and output devices, CPU, memory hierarchy, data units and number systems, system and application software, OS, languages and 12 FAQs.

9 min read PDF available Read note
2

Internet and Networking Notes for Competitive Exams

Internet and networking notes: ARPANET, WWW, IP address, DNS, protocols table, network types, topologies, devices, OSI model, cloud computing, India milestones and 12 FAQs.

10 min read PDF available Read note
3

MS Office Basics Notes for Competitive Exams

MS Office notes for exams: Word, Excel, PowerPoint features, file extensions, shortcut keys table, Excel functions with examples, PowerPoint concepts and 12 FAQs.

10 min read PDF available Read note
4

Cyber Security Basics for Aspirants Notes for Competitive Exams

Cyber security basics for exam aspirants: CIA triad, malware table, attacks, hacker types, security tools, safe habits, job scams, IT Act, reporting fraud and 12 FAQs.

10 min read PDF available Read note
5

Digital India Initiatives Notes for Competitive Exams

Digital India notes for exams: launch and nine pillars, Aadhaar, UPI, DigiLocker, UMANG, GeM, BharatNet, PMGDISHA, health and education platforms, India Stack, challenges and 12 FAQs.

9 min read PDF available Read note
6

Computer Abbreviations and Full Forms Notes for Competitive Exams

Computer abbreviations and full forms for competitive exams: hardware, software, networking, internet, mobile, security and banking short forms in tables with tricky points and 12 FAQs.

8 min read PDF available Read note
7

Operating System, Database and Programming Basics Notes

Operating system, DBMS and programming basics notes: OS functions and types, database terms, SQL, languages, compiler vs interpreter, errors, practice questions and 12 FAQs.

9 min read PDF available Read note
8

History and Generations of Computers

History and generations of computers notes for SSC, bank, railway and state exams: early calculating devices, Charles Babbage, ENIAC, five generations (vacuum tubes to AI) with technology, features and examples, Indian computing milestones and 12 FAQs.

8 min read PDF available Read note
9

Types of Computers and Supercomputers in India

Types of computers notes for bank, SSC, railway and state exams: analog, digital and hybrid computers; supercomputers, mainframes, minicomputers and microcomputers; general and special purpose; India supercomputers PARAM and National Supercomputing Mission with 12 FAQs.

8 min read PDF available Read note
10

Computer Memory Notes: RAM, ROM, Cache

Computer memory notes for bank, SSC, railway and state exams: memory hierarchy, primary and secondary memory, RAM types (SRAM, DRAM), ROM types (PROM, EPROM, EEPROM), cache, registers, virtual memory, storage devices and memory units with 12 FAQs.

8 min read PDF available Read note
11

Input and Output Devices of Computer

Input and output devices notes for bank, SSC, railway and state exams: keyboard, mouse, scanner, OMR, MICR, OCR, barcode reader, biometric devices, monitors, printers, plotters, speakers, and devices that are both input and output, with 12 FAQs.

8 min read PDF available Read note
12

Computer Number System Notes for Competitive Exams

Computer number system notes for bank, SSC, railway and state exams: binary, octal, decimal and hexadecimal systems, base and place value, step-by-step conversions, binary addition and subtraction, 1s and 2s complement, ASCII and Unicode with 12 FAQs.

6 min read PDF available Read note
13

Logic Gates and Boolean Algebra Notes

Logic gates and Boolean algebra notes for bank, SSC, railway and technical exams: basic gates (AND, OR, NOT), universal gates (NAND, NOR), XOR and XNOR, truth tables, Boolean laws, De Morgan theorems and simple circuit examples with 12 FAQs.

8 min read PDF available Read note
14

Email, Web Browsers and Search Engines Notes

Email, web browser and search engine notes for bank, SSC, railway and state exams: parts of an email address, CC and BCC, attachments, email protocols (SMTP, POP3, IMAP), spam and phishing, popular browsers, cookies, cache, URL structure and how search engines work, with 12 FAQs.

9 min read PDF available Read note
15

Cloud Computing Notes: SaaS, PaaS, IaaS

Cloud computing notes for bank, SSC, state and UPSC exams: meaning and features, service models (SaaS, PaaS, IaaS), deployment models (public, private, hybrid, community), advantages and risks, edge computing, MeghRaj and DigiLocker examples, with 12 FAQs.

8 min read PDF available Read note
16

File Extensions and Formats Notes for Competitive Exams

File extensions and formats notes for bank, SSC, railway and state exams: common extensions for documents, spreadsheets, presentations, images, audio, video, compressed, web, programming and system files, with lossy vs lossless compression and 12 FAQs.

8 min read PDF available Read note
17

Computer Virus, Antivirus and Firewall Notes

Computer virus, antivirus and firewall notes for bank, SSC, railway and state exams: what a virus is, types of viruses and malware, famous attacks, how antivirus software detects threats, types of firewalls, safe practices and Indian agencies like CERT-In, with 12 FAQs.

9 min read PDF available Read note
18

Computer Keyboard Shortcuts and Important Terminology Notes

Computer awareness notes with keyboard shortcuts for Windows, MS Word, Excel, PowerPoint and browsers, function keys, and a glossary of important computer terms with 12 FAQs.

8 min read PDF available Read note
19

MS Excel Formulas and Functions Notes for Competitive Exams

Computer notes on MS Excel formulas and functions with tables for math, logical, lookup, text and date functions, cell references, error messages, practice questions and 12 FAQs.

10 min read PDF available Read note
20

AI, Machine Learning and Emerging Technologies Notes for Computer

Computer awareness notes on artificial intelligence, machine learning, deep learning, generative AI, IoT, blockchain, quantum computing and India missions, with tables, practice questions and 12 FAQs.

9 min read PDF available Read note