Padikam lessons

ORIGINAL STUDY COMPANION PADIKAM CLASS 11 | HUMANITIES Computer Applications - Humanities 2026 Kerala SCERT / prescribed NCERT core lessons 7 chapter lessons Quick explanations, core points, exam practice and chapter-specific notation in one consistent format. Padikam explanations are independently written. Official textbooks are used as the coverage map, chapter sequence and terminology reference. PADIKAM | KERALA CLASS 11 1

Contents 01 Computing System 02 Word Processing 03 Designing Presentation 04 Electronic Spreadsheet 05 Computer Network 06 Cyber Security 07 AI and Its Applications Study rhythm Read the quick explanation, recall the core points aloud, then answer the prompts without looking back. Use the official textbook links for full prescribed readings, activities and diagrams. Textbook and verification links

1. https://scert.kerala.gov.in/hss-2026/
2. https://drive.google.com/file/d/1Nu2UnP-dWwNfL1bIN25Bk4kqFgpA_iFE/view PADIKAM | KERALA CLASS 11 2

CHAPTER 01 Computing System Quick understanding Understand computer evolution, components, software and responsible use. Core points Check your learning A computer system integrates input, processing, Label a computer organisation diagram. storage and output. Distinguish hardware, system software Operating systems manage hardware and provide and application software. services. Green computing reduces energy use and e-waste. One-line recall A computer system integrates input, processing, storage and output. PADIKAM | KERALA CLASS 11 3

CHAPTER 02 Word Processing Quick understanding Create structured documents using styles, tables, images, references and careful revision. Core points Check your learning Styles give consistent hierarchy. Design a formal report or newsletter. Page layout should serve readability and purpose. Use find-replace, styles and headers correctly. Spell-checking does not replace proofreading. One-line recall Styles give consistent hierarchy. PADIKAM | KERALA CLASS 11 4

CHAPTER 03 Designing Presentation Quick understanding Plan a presentation around audience, message and visual sequence. Core points Check your learning One slide should communicate one main idea. Create a five-slide social-topic presentation. Readable contrast and limited text improve attention. Evaluate a slide for hierarchy and Speaker explanation should add value beyond the accessibility. slide. One-line recall One slide should communicate one main idea. PADIKAM | KERALA CLASS 11 5

CHAPTER 04 Electronic Spreadsheet Quick understanding Organise data and use formulas, functions, charts, sorting and filtering for analysis. Core points Check your learning Cell references may be relative, absolute or mixed. Build a household-budget sheet. Functions reduce repeated calculation. Use SUM, AVERAGE, IF and an appropriate chart. Charts must match the question the data should answer. Equation and notation Relative: A1 Absolute: $A$1 Mixed: A$1 or$A1 SYMBOLS AND UNITS A1: relative cell reference $A$1: absolute row and column A$1 or$A1: one fixed and one relative component One-line recall Cell references may be relative, absolute or mixed. PADIKAM | KERALA CLASS 11 6

CHAPTER 05 Computer Network Quick understanding Connect devices and share information through media, protocols and network services. Core points Check your learning Network type depends on scale and use. Draw a school network. Switches connect local devices; routers connect Compare common internet services and networks. protocols. The internet and web are related but not identical. One-line recall Network type depends on scale and use. PADIKAM | KERALA CLASS 11 7

CHAPTER 06 Cyber Security Quick understanding Identify threats and practise secure, ethical digital behaviour. Core points Check your learning Phishing manipulates people rather than software Create a response plan for a alone. compromised account. Updates, backups and multi-factor authentication Analyse a misinformation or phishing reduce risk. message. Privacy includes control over personal data and digital footprint. One-line recall Phishing manipulates people rather than software alone. PADIKAM | KERALA CLASS 11 8

CHAPTER 07 AI and Its Applications Quick understanding Explore intelligent systems in language, media, public services and research while recognising limitations. Core points Check your learning AI output depends on data, model and prompt or Evaluate AI in journalism or social task design. research. Bias and fabricated output require verification. Write rules for transparent classroom use of AI. Ethical use protects fairness, privacy and human agency. One-line recall AI output depends on data, model and prompt or task design. PADIKAM | KERALA CLASS 11 9