Societal Impact

2.1 Core concepts

• Digital Technologies and Society (§11.1, p. 229): The introduction of PCs, the Internet, and smartphones has made digital technologies available to the common person. Banking, aviation, industrial production, and e-commerce are now dependent on computers and digital technologies. While these bring convenience and efficiency, they can also be misused. (NCERT §11.1, p. 229)
• Digital Footprint defined (§11.2, p. 229–230): Whenever we surf the Internet using smartphones, tablets, or computers, we leave a trail of data reflecting activities performed online — this is our digital footprint. It includes websites visited, emails sent, information submitted, IP address, location, and device-specific details. Such data can be used for targeted advertising or exploited. (NCERT §11.2, p. 229–230)
• Active vs. Passive Digital Footprints (§11.2, p. 230): Active digital footprints include data intentionally submitted online — emails written, posts made, form responses. Passive digital footprints are the data trail left unintentionally — website visit records, cookies, app usage data. Most digital footprints are stored on remote servers; there is no guarantee they can be fully erased. (NCERT §11.2, p. 230)
• Digital Society and Netizen (§11.3, p. 231): A digital society is one where daily activities — communication, banking, shopping, entertainment, education, transportation — are increasingly driven by online transactions. Anyone using digital technology along with the Internet is a digital citizen or netizen. A good netizen practises safe, ethical, and legal use of digital technology. (NCERT §11.3, p. 231)
• Net Etiquettes (§11.3.1, p. 231–232): Three categories — Be Ethical (no copyright violation; share genuine expertise), Be Respectful (respect privacy and diversity of other users), and Be Responsible (avoid cyber bullying; don't feed the troll). An Internet troll deliberately sows discord; the best response is to ignore them. (NCERT §11.3.1, p. 231–232)
• Communication Etiquettes (§11.3.2, p. 232–233): Digital communication (email, chat, audio/video conferencing) requires being Precise (respect time; respect data limits — use compressed files or cloud links), Polite (avoid aggression even in disagreement), and Credible (comments build long-term credibility; verify before relying on another's post). (NCERT §11.3.2, p. 232–233)
• Social Media Etiquettes (§11.3.3, p. 233–234): Social media platforms enable sharing content with the community. Users must Be Secure (choose strong passwords, frequently changed; know who you befriend; beware of fake news) and Be Reliable (think before uploading — once uploaded to a remote server it is effectively permanent). (NCERT §11.3.3, p. 233–234)
• Data Protection and Sensitive Data (§11.4, p. 235): Data protection is about the privacy of digitally stored data. Sensitive data includes biometric information, health information, financial information, and personal documents. Countries have data protection policies (laws) providing guidelines on processing, storage, and transmission of sensitive information. (NCERT §11.4, p. 235)
• Intellectual Property Right — Copyright (§11.4.1A, p. 235–236): Intellectual Property refers to inventions, literary and artistic expressions, designs, symbols, names and logos. Copyright grants legal rights automatically to creators for original works (writing, photograph, audio recordings, computer software, etc.). Rights include: right to copy/reproduce, create derivative works, distribute, and publicly display. To use copyrighted material, one must obtain a license. (NCERT §11.4.1A, p. 235–236)
• Patent (§11.4.1B, p. 236): A patent is granted for inventions; unlike copyright, the inventor must apply (file) for a patent. When granted, the owner gets an exclusive right to prevent others from using, selling, or distributing the protected invention. A patent protects an invention for 20 years, after which it can be freely used. (NCERT §11.4.1B, p. 236)
• Trademark (§11.4.1C, p. 236): A trademark includes any visual symbol, word, name, design, slogan, label, etc., that distinguishes a brand from others. It prevents use of confusingly similar marks. A software product, for example, would have its code protected by copyright, its functional expression by patent, and its name/logo by trademark. (NCERT §11.4.1C, p. 236)
• Violation of IPR — Plagiarism (§11.4.2A, p. 237): Presenting someone else's idea or work as one's own is plagiarism. It is a serious ethical offence and sometimes considered fraud. Even content that is open for public use must have the original source cited to avoid plagiarism. (NCERT §11.4.2A, p. 237)
• Copyright Infringement and Trademark Infringement (§11.4.2B–C, p. 237): Copyright infringement occurs when someone uses another person's work without permission or without paying, if it is being sold. Trademark infringement means unauthorised use of another's trademark on products and services. (NCERT §11.4.2B–C, p. 237)
• Public Access and Open Source Software — FOSS (§11.4.3, p. 237–238): Two major public license categories: Creative Commons (CC) — used for creative works (websites, music, film, literature), enables free distribution while retaining some rights; and GNU General Public License (GPL) — primarily for software, grants end users freedom to run, study, share and modify. Free and Open Source Software (FOSS) examples include Ubuntu, Fedora, LibreOffice, Mozilla Firefox. Software piracy (unauthorised use or distribution) is copyright infringement and harms the economy. (NCERT §11.4.3, p. 237–238)
• Cyber Crime defined (§11.5, p. 239): Criminal activities or offences carried out in a digital environment. Either the computer is the target (disabling/damaging data) or a tool (extortion, theft). Cyber crimes include hacking, ransomware attacks, denial-of-service, phishing, email fraud, banking fraud and identity theft. A computer virus is malicious code that copies itself and has detrimental effects; malware is software designed to gain unauthorised access. (NCERT §11.5, p. 239)
• Hacking (§11.5.1, p. 239–240): Unauthorised access to a computer, network or digital system. Ethical hacking (white hat hacking) — done with positive intent to find vulnerabilities and report them to the owner. Non-ethical hacking (black hat / cracking) — done for illegal purposes like identity theft, monetary gain, or bringing down a competitor's system. (NCERT §11.5.1, p. 239–240)
• Phishing and Fraud Emails (§11.5.2, p. 240): Phishing uses fake websites or emails that look authentic to fraudulently collect sensitive personal details (usernames, passwords, banking/credit card details). The most common method is email spoofing where a forged email address mimics a trusted source. Identity theft (financial, criminal, medical) is a key sub-type of phishing. (NCERT §11.5.2, p. 240)
• Ransomware (§11.5.3, p. 241): An attacker gains access, encrypts the victim's data, and demands a ransom for decryption. Ransomware reaches systems via malicious websites, doubtful software repositories, spam email attachments, or malicious advertisements. (NCERT §11.5.3, p. 241)
• Combatting Cyber Crime (§11.5.4, p. 241–242): Safety measures include: regular data backup; updated antivirus software; avoiding pirated software; keeping system and browser software updated; using strong, unique, periodically changed passwords; using private browsing on shared computers; securing wireless networks; performing transactions only on well-known HTTPS sites. (NCERT §11.5.4, p. 241–242)
• Indian IT Act 2000 (§11.6, p. 242): The Information Technology Act, 2000 (amended 2008) provides guidelines on processing, storage and transmission of sensitive information; gives legal recognition to electronic records and digital signatures; outlines cyber crimes and penalties. The Cyber Appellate Tribunal resolves disputes from cyber crimes. Digital signatures are the digital equivalent of a paper certificate, issued by a Certified Authority (CA) licensed under Section 24 of the IT Act. (NCERT §11.6, p. 242)
• Impact on Health and Ergonomics (§11.7, p. 242–244): Excessive screen time can be physically and psychologically harmful. Ergonomics is the branch of science dealing with designing workplaces (furniture, equipment, systems) to be safe and comfortable, reducing fatigue and injury. Recommended posture: viewing distance 19–24 inches, viewing angle 30°, seat-back angle 90°, knee angle 90°, wrist straight. Eye strain is a common complaint. Overuse of keyboards can cause wrist and finger pain. Stress, fatigue, and obesity are other health impacts. (NCERT §11.7, p. 242–244)

2.2 Definitions to memorise

2.3 Diagrams / processes to remember

• Figure 11.1 (p. 230): Exemplar web applications (Facebook, LinkedIn, YouTube, WhatsApp, etc.) that result in digital footprints — illustrates passive footprint generation from everyday apps.
• Figure 11.2 (p. 231): Net Etiquettes wheel — three segments: Be Ethical (no copyright violation; share expertise), Be Respectful (respect privacy; respect diversity), Be Responsible (avoid cyber bullying; don't feed the troll). Useful as a recall diagram for MCQs on netizen duties.
• Figure 11.3 (p. 233): Communication Etiquettes — five elements: Be Precise (Respect Time; Respect Data Limits), Be Polite, Be Credible. The visual groups Respect Time and Respect Data Limits under "Be Precise."
• Figure 11.4 (p. 234): Social Media Etiquettes — Be Secure (Choose password wisely; Know who you befriend; Beware of fake information) and Be Reliable (Think before you upload).
• Figure 11.5 (p. 243): Correct ergonomic posture at a computer — viewing distance 19–24 inches, viewing angle 30°, wrist straight, seat-back angle 90°, knee angle 90°, feet flat or on footrest. Numbers are frequently tested.

2.4 Common confusions / NTA trap points

• Active vs. Passive footprint confusion: NTA often swaps the definitions. Remember — Active = intentional (you chose to send that email or post); Passive = unintentional (the site stored your visit without you actively doing anything).
• Copyright is automatic; Patent requires application: Students confuse the two. Copyrights are granted automatically upon creation; patents must be filed for and are limited to 20 years. Trademarks protect brand identity, not the creative content or the invention.
• Plagiarism vs. Copyright Infringement: Plagiarism is an ethical violation (presenting others' work as your own without credit); copyright infringement is a legal violation (using without permission or payment). You can plagiarise public-domain content (ethical offence) without infringing copyright.
• FOSS vs. Freeware: FOSS allows the user to run, study, share and modify the source code. Freeware (e.g., Skype, Adobe Acrobat Reader) allows free personal use but the source code is not open and commercial distribution is prohibited. These are commonly confused in MCQ distractors.
• Ethical hacking = white hat; Non-ethical = black hat/crackers (NCERT §11.5.1, p. 239-240). NTA may call non-ethical hackers "crackers." Their primary focus is security cracking and data stealing for illegal or malicious purposes.
• Patent term = 20 years (NCERT §11.4.1B, p. 236). Not 10, not 25. After this, the invention enters public domain.
• Copyright is automatic (NCERT §11.4.1A, p. 236). No registration is needed for copyright to apply — protection begins at creation. NTA distractor: claims copyright requires registration.
• GPL is for software; CC is for creative works (NCERT §11.4.3, p. 237-238). NTA confuses these — Mozilla Firefox uses an open-source license like GPL, not Creative Commons.
• Sensitive data categories (NCERT §11.4, p. 235). Biometric, health, financial, and personal documents — NOT general public posts. NTA distractor lists all browsing data as sensitive.
• Ransomware demands ransom (NCERT §11.5.3, p. 241). It encrypts the victim's data. Phishing tricks for credentials. Don't confuse the two.
• Ergonomic viewing distance 19-24 inches; angle 30° (NCERT Figure 11.5, p. 243). Specific numbers tested by NTA — memorise.
• Digital signature ≠ scanned signature (NCERT §11.6, p. 242). Digital signature is a cryptographic certificate issued by a CA, not a scanned image of a paper signature.