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Information TechnologyCh-3 12 min comprehensive revision
CBSE Class 10 IT (402) — Part A: Employability Skills (Unit 3)

Information & Communication Technology Skills - II

Operating system basics (GUI vs CLI, file systems), desktop management, file and folder operations, computer maintenance, virus prevention, and data backup.

Quick Key Takeaways:
Operating System Functions: Resource management, processor scheduling, memory allocation, file management, and providing user interface (GUI / CLI).
Computer Security & Care: Routine disk cleanup, regular data backups, installing reputable antivirus software, and avoiding unauthorized USB drives or suspicious downloads.
Jump to Concept:1. Operating System & File Operations2. Maintenance & Threat Prevention
1

Operating System & File Operations

Core Tech

An Operating System (OS) is system software that manages computer hardware and software resources and provides common services for computer programs.

• Types of Operating Systems
Single-user (DOS), Multi-user (Linux, Unix), Multi-tasking (Windows 10/11, macOS), Real-Time (RTOS), and Mobile OS (Android, iOS).
• File and Folder Management
Files store data with specific extensions (.txt, .docx, .odt, .jpg). Folders (directories) organize files hierarchically. Operations: Create, Rename, Copy (Ctrl+C), Move/Cut (Ctrl+X), Paste (Ctrl+V), Delete (Del / Shift+Del for permanent delete).
2

Maintenance & Threat Prevention

Security

Regular hardware cleaning and software optimization ensure longevity and operational speed.

• Malware Types
Viruses (replicate and attach to executable files), Worms (self-replicate over networks), Trojan Horses (disguised malicious programs), Spyware, and Ransomware.
• Preventive Measures
Keep OS and antivirus updated, enable Windows Defender Firewall, avoid clicking suspicious email attachments, run periodic Disk Defragmenter and Disk Cleanup.
Authentic Board Question (3 Marks)Topic: Information & Communication Technology Skills - II Professional Protocols & Workplace Safety
Discuss the workplace professional standards, communication barriers, and safety protocols essential for "Information & Communication Technology Skills - II".

Official CBSE Step-by-Step Marking Breakdown:

Step 1: Protocol / Concept Definition: Define the specific employability skill, communication barrier, green practice, or workplace hazard.
1 Mark
Step 2: Implementation Guidelines & Best Practices: Detail ergonomic guidelines, accident prevention rules, active listening habits, or cyber hygiene protocols.
1 Mark
Step 3: Emergency Action & Organizational Compliance: State emergency evacuation procedures, first aid basics, or workplace productivity outcomes.
1 Mark
Model Student Answer (Target: Full 3/3 Marks):
For full marks in "Information & Communication Technology Skills - II":

1. Professional Skill Principle: State the formal definition of the communication channel, time management technique, or workplace hazard classification.
2. Safe Working Procedures: Outline standard ergonomic setup (monitor distance, posture), password hygiene, or fire safety protocols.
3. Crisis Response: Describe immediate reporting procedures and first-aid compliance in case of occupational hazards.
Examiner Mark Deduction Traps:
•Categorize workplace hazards into Physical, Chemical, Biological, and Ergonomic for structured answers.
•List actionable, realistic workplace steps rather than vague moral advice.

High-Frequency Conceptual Doubts & FAQs

Curated answers to the most common questions asked by Class 10 students.
This chapter establishes the foundational principles, definitions, and operational workflows required for Class 10 board mastery.

Next Learning Steps & Active Practice

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