Thursday, April 9, 2026

Grade3 ICT Computer Basics Q&A for Kids – 50+ Questions & Answers eworld Edexcel English Medium

 ЁЯЦе️ Chapter 1: My Devices

Q1: What does "store" mean in computers?
✅ A: Store means saving information so we can use it later, like saving homework or photos!
Q2: Name 3 devices that can store information.
✅ A: Computer/Laptop, Tablet, USB flash drive (also: External hard drive, Smartphone)
Q3: What can we store on a computer?
✅ A: Photos, videos, homework, music, documents, and games!
Q4: What does "print" mean?
✅ A: Print means putting computer work onto paper using a printer.
Q5: Which device is used for printing?
✅ A: A printer! ЁЯЦи️
Q6: Name 3 things you can print from a computer.
✅ A: Assignments, pictures, letters (also: certificates, drawings, stories)
Q7: What does "capture" mean?
✅ A: Capture means recording or taking something, like photos, videos, or sound.
Q8: Which device captures photos?
✅ A: A camera! ЁЯУ╖
Q9: Which device captures videos?
✅ A: A video camera or smartphone! ЁЯУ╣
Q10: Which device captures sound or voice?
✅ A: A microphone! ЁЯОд
Q11: What does "interact" mean with computers?
✅ A: Interact means communicating with the computer – giving it instructions and getting results back!
Q12: Name 2 input devices (we give information).
✅ A: Keyboard and Mouse (also: Microphone, Touchscreen)
Q13: Name 2 output devices (computer gives results).
✅ A: Monitor and Speakers (also: Printer)
Q14: What is the difference between input and output devices?
✅ A: Input devices send information TO the computer. Output devices receive information FROM the computer.
Q15: Which device would you use to type your name?
✅ A: A keyboard! ⌨️
Q16: Which device helps you click and select things on screen?
✅ A: A mouse! ЁЯЦ▒️



ЁЯУБ Chapter 2: My Files

Q17: What is a file?
✅ A: A file is saved information on a computer, like a document, picture, song, or video.
Q18: What is the file extension for a Word document?
✅ A: .docx
Q19: What is the file extension for a picture?
✅ A: .jpg (or .png, .gif)
Q20: What is the file extension for a music file?
✅ A: .mp3
Q21: What is the file extension for a video file?
✅ A: .mp4
Q22: What two things does every file have?
✅ A: A name and a type (file extension).
Q23: What is a folder?
✅ A: A folder is like a digital container that keeps files organized, just like a school bag holds books!
Q24: Why should we organize files into folders?
✅ A: So they are easy to find, save time, and keep the computer neat!
Q25: How do you search for a file on a computer?
✅ A: Click the search bar → Type the file name → Press Enter → Open the file!
Q26: What is a program or app?
✅ A: A program/app is software that helps us do tasks, like writing, drawing, or browsing the internet.
Q27: Name 3 examples of programs/apps.
✅ A: Word processor, Paint, Web browser (also: Calculator, Music player)
Q28: How do you start a program on a Windows computer?
✅ A: Click Start → Choose the program → Click to open!

✍️ Chapter 3: My First Article

Q29: What is "text" in a computer?
✅ A: Text means typed words – letters, numbers, and symbols you type using a keyboard.
Q30: Which key do you press to go to a new line?
✅ A: The Enter key! ↵
Q31: Which key deletes the letter before the cursor?
✅ A: The Backspace key! ⌫
Q32: Why should we give a title to our article?
✅ A: A title tells the topic and helps readers know what the article is about!
Q33: How can you make a title stand out?
✅ A: Make it bigger, bold it, and keep it at the top of the page!
Q34: What are the two types of lists we can make?
✅ A: Bullet list (•) and Number list (1, 2, 3)
Q35: Give an example of a bullet list for school supplies.
✅ A: • Pencil • Book • Bag
Q36: What should you check before saving your article?
✅ A: Check spelling and punctuation! ✔️
Q37: What are the steps to save a file?
✅ A: Click File → Click Save → Choose a folder → Name the file → Click Save!
Q38: Why is it important to save your work?
✅ A: So you don't lose it and can open it again later!

ЁЯМР Chapter 4: My Wired World

Q39: What helps us find information on the internet?
✅ A: A search engine (like Google)!
Q40: What should you type to get good search results?
✅ A: Clear, simple keywords related to what you're looking for!
Q41: Name 3 things you can find using a search engine.
✅ A: Pictures, information, videos (also: maps, news, recipes)
Q42: What are "knowledge treasure sites"?
✅ A: Educational websites that help us learn, like online dictionaries or kids' learning sites!
Q43: Why should we only use safe and trusted websites?
✅ A: To protect ourselves from harmful content, scams, or viruses!
Q44: What is "netiquette"?
✅ A: Internet manners – being polite and respectful online!
Q45: Name 3 rules of good netiquette.
✅ A: Be respectful, use kind words, don't type in ALL CAPS (also: don't bully others)
Q46: What personal information should you NEVER share online?
✅ A: Passwords, home address, phone number!
Q47: What makes a password strong?
✅ A: A mix of letters, numbers, and symbols – and it's not easy to guess!
Q48: What should you do if something feels wrong online?
✅ A: Tell a parent or teacher right away!

ЁЯОд Chapter 5: My First Presentation

Q49: What is a presentation made of?
✅ A: Slides! Each slide can have a title, text, and pictures.
Q50: What are 3 things you can add to a slide?
✅ A: Title, text, pictures (also: shapes, videos, sounds)
Q51: Why should slides be simple and neat?
✅ A: So the audience can understand easily and stay interested!
Q52: How do you add text to a slide?
✅ A: Click a text box → Type your words → Change size or color if needed!
Q53: Why should text on slides be short and clear?
✅ A: So people can read it quickly while you speak!
Q54: How do you insert a picture into a slide?
✅ A: Click Insert → Choose Picture → Select image → Click Insert!
Q55: Why add pictures to slides?
✅ A: Pictures make slides more interesting and help explain ideas!
Q56: Name 3 tips for presenting well.
✅ A: Stand straight, speak clearly, look at the audience (also: smile, don't read everything, practice!)
Q57: Why should you practice before presenting?
✅ A: Practice helps you feel confident and remember what to say!

ЁЯФН Bonus: Device Deep-Dive Questions

Q58: What is the difference between internal and external storage?
✅ A: Internal storage is inside the computer (like C: drive). External storage is plugged in from outside (like USB or external hard drive).
Q59: Which storage device can hold about 1,000 movies?
✅ A: An external hard disk drive!
Q60: Why should you be careful with CDs and DVDs?
✅ A: Because scratching the surface can lose your data!
Q61: What is a USB flash drive also called?
✅ A: A memory stick!
Q62: Where are memory cards commonly used?
✅ A: In smartphones, digital cameras, MP3 players, and game consoles!
Q63: What was the main storage device in the 1970s-80s?
✅ A: The floppy disk! (Now obsolete due to small capacity)
Q64: Which printer is best for printing photos at home?
✅ A: An inkjet printer! (Use photo paper for best results)
Q65: Which printer is fastest and best for offices?
✅ A: A laser printer!
Q66: Which printer do shops use for receipts?
✅ A: A thermal printer!
Q67: Which printer would an architect use for large blueprints?
✅ A: A plotter!
Q68: What does a scanner do?
✅ A: It takes a "photo" of paper documents and turns them into digital computer files!
Q69: What is special about a Bubble Jet printer?
✅ A: It prints by shooting tiny drops of ink – like magic bubbles! ЁЯМИ
Q70: What can you do with HoloLens?
✅ A: See 3D holograms floating in your room – like a dinosaur walking around! ЁЯжЦ✨
Q71: How do you play games with a Nintendo Wii Remote?
✅ A: You wave, point, and move it like a magic wand – swing for tennis, turn for racing!
Q72: What does a VR headset let you do?
✅ A: Step inside a 3D virtual world – walk on the Moon, swim with dolphins, explore space!
Q73: What is special about a VR glove?
✅ A: It has sensors that let you use your hands to grab, point, and gesture in virtual reality!
Q74: What is a graphic tablet used for?
✅ A: Drawing on the computer like paper, with a pressure-sensitive stylus pen!
Q75: Why might someone use a trackball instead of a mouse?
✅ A: It's great for small desks, keeps your wrist comfortable, and is very precise!
Q76: What are the main parts of a gamepad?
✅ A: Joysticks, action buttons, directional pad, and vibration feature!
Q77: Which games are best played with a joystick?
✅ A: Flying games, racing games, space adventures, and robot battles!
Q78: What is an interactive touchpad?
✅ A: A smooth surface on laptops where you swipe and tap with fingers to control the computer!
Q79: Name 3 gestures you can do on a touchpad.
✅ A: One-finger tap (click), two-finger swipe (scroll), two-finger pinch (zoom)!
Q80: What devices have touch screens?
✅ A: Smartphones, tablets, some laptops, ATMs, car navigation screens, and gaming devices!
Q81: What is a Blu-Ray disc?
✅ A: A shiny disc that stores HD movies, big games, and files with super clear quality – holds 25-50x more than a CD!
Q82: How do you use a Blu-Ray disc?
✅ A: Put it shiny-side down in the player → Close tray → Press Play → Enjoy! ЁЯН┐
Q83: What is a webcam used for?
✅ A: Feeding live video into a computer for video calls, recording clips, or security!
Q84: Why are digital cameras better than old film cameras?
✅ A: No film needed! Preview photos instantly, store on memory cards, and edit easily!
Q85: What is the nickname for a digital camera?
✅ A: "Digicam"!

ЁЯОп Quick Review Mix-Up!

Q86: Which device would you use to save a school project for tomorrow?
✅ A: Computer, USB drive, or cloud storage!
Q87: You drew a picture in Paint. How do you give it to your teacher on paper?
✅ A: Print it using a printer!
Q88: You want to record your friend singing. Which device do you use?
✅ A: A microphone or smartphone!
Q89: You need to find a file named "MyStory.docx". What do you do?
✅ A: Use the search bar → Type "MyStory" → Press Enter → Open it!
Q90: You're writing a story. Which key starts a new paragraph?
✅ A: The Enter key!
Q91: You found a cool learning website. How do you know it's safe?
✅ A: It's from a trusted source (like school, .edu, or .gov), has no scary pop-ups, and a grown-up approves!
Q92: Your presentation slide has too much text. What should you do?
✅ A: Shorten it! Use bullet points and let your voice explain the details.
Q93: Which device helps you video call grandma?
✅ A: A smartphone, tablet, or computer with a webcam!
Q94: You want to draw a cartoon on the computer. Which device helps most?
✅ A: A graphic tablet with a stylus!
Q95: You're playing a racing game. Which controller feels most like driving?
✅ A: A joystick or gamepad with a steering wheel accessory!

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Tuesday, April 7, 2026

GCE A/L ICT Lesson 1: Basic Concepts of ICT | 1. Data and Information: The Building Blocks · 2. The Data Processing Life Cycle · 3. Characteristics of Quality Information · 4. Components of an ICT System ·

ЁЯФ╣ Unit 1: Basic Concepts of ICT

GCE Advanced Level (Sri Lanka) • Complete Study Guide

1️⃣ Building Blocks: Data vs Information

ЁЯУК DATA (Raw Facts)

  • Unprocessed, unorganized facts
  • No context or meaning alone
  • Examples: 25, "Kandy", 1500

ЁЯТб INFORMATION (Processed Data)

  • Data + Context + Meaning
  • Useful for decision-making
  • Example: "Student aged 25 from Kandy scored 1500 marks"
ЁЯОп Real-Life Example:
Supermarket Scenario
  • Data: "10", "Rice", "500", "2024-04-07"
  • Information: "10 bags of Rice sold at Rs. 500 each on April 7, 2024 → Total Revenue: Rs. 5,000"

2️⃣ Data Processing Life Cycle (DPLC)

  1. 1 Collection: Gathering raw data (e.g., survey forms, sensors, receipts)
  2. 2 Input: Entering data into system (keyboard, scanner, API)
  3. 3 Processing: Calculating, sorting, analyzing (CPU operations)
  4. 4 Storage: Saving data/information (HDD, cloud, database)
  5. 5 Output: Presenting results (reports, screens, prints)
  6. 6 Distribution: Sharing information with users

✅ Validation Techniques (Critical for Accuracy!)

Technique Purpose Example
Range Check Ensures value within limits Age: 18-65
Format Check Verifies data pattern Email: user@domain.com
Presence Check Confirms field not empty NIC number required
Check Digit Detects transcription errors ISBN, Credit Card numbers

3️⃣ Abstract Model of Information

This model explains how information flows through conceptual layers:

ЁЯФД Information Flow Diagram:

[Source] → [Encoding] → [Channel] → [Decoding] → [Receiver]
     ↑                                      ↓
     └────── [Feedback Loop] ──────────────┘
    

ЁЯУМ Practical Example: Online Order System

  • Source: Customer places order via mobile app
  • Encoding: App converts order to JSON data packet
  • Channel: Internet/4G network transmits data
  • Decoding: Server parses JSON, updates database
  • Receiver: Warehouse system receives order details
  • Feedback: SMS confirmation sent to customer

4️⃣ Six Components of an ICT System

ЁЯТ╗ Hardware

Physical devices: CPU, monitor, keyboard, servers, routers

Example: POS machine in a shop

⚙️ Software

Programs & instructions: OS, apps, drivers, firmware

Example: Inventory management software

ЁЯЧГ️ Data

Facts & figures processed by the system

Example: Customer records, product prices

ЁЯСе People

Users, developers, administrators, technicians

Example: Shop owner using the CRM system

ЁЯУЛ Procedures

Rules, guidelines, workflows for system use

Example: "Backup database every Friday at 5 PM"

ЁЯМР Networks

Communication pathways: LAN, WAN, internet, protocols

Example: Wi-Fi connecting shop devices to cloud
ЁЯТб Key Insight: All 6 components must work together! A powerful computer (hardware) is useless without software, data, trained people, clear procedures, and network connectivity.

5️⃣ Quality of Information (8 Key Characteristics)

Characteristic Definition Poor Quality Example
Accuracy Error-free, correct data Price shown as Rs. 50 instead of Rs. 500
Timeliness Available when needed Exam results published after university admissions close
Relevance Applicable to user's need Showing winter coat ads to a customer in Colombo in April
Completeness All necessary details included Order confirmation without delivery address
Consistency Uniform across systems Customer name spelled differently in billing vs. shipping
Accessibility Easy to obtain by authorized users Important notice only posted on physical board, not online
Verifiability Can be confirmed as true "50% off!" with no terms, conditions, or end date
Security Protected from unauthorized access Student grades visible to all users in a shared drive

6️⃣ Evolution & History of Computing

ЁЯХ░️ Generations of Computers

Generation Period Technology Example
1st 1940-1956 Vacuum Tubes ENIAC, UNIVAC
2nd 1956-1963 Transistors IBM 1401
3rd 1964-1971 Integrated Circuits (IC) IBM System/360
4th 1971-Present Microprocessors Personal Computers, Smartphones
5th (Emerging) Present-Future AI, Quantum Computing IBM Quantum, Neural Networks

ЁЯЗ▒ЁЯЗ░ Sri Lankan Context

  • 1980s: First computer at University of Colombo
  • 1990s: Introduction of ICT in education policy
  • 2000s: Expansion of internet, mobile penetration
  • 2020s: Digital Sri Lanka initiative, e-Government services

7️⃣ Societal Impact & Ethics

✅ Positive Impacts

  • Education: e-Thaksalawa, online learning platforms
  • Healthcare: e-Channeling, telemedicine in rural areas
  • Commerce: Digital payments (FriMi, Genie), e-commerce growth
  • Governance: e-Sri Lanka, online license applications

⚠️ Challenges & Ethics

  • Digital Divide: Urban vs. rural internet access gap
  • Privacy: Data collection without consent (PDPA compliance needed)
  • Cybercrime: Phishing, online fraud targeting Sri Lankans
  • Job Displacement: Automation affecting traditional roles

ЁЯЫб️ Ethical Principles for ICT Professionals

  1. Confidentiality: Protect user data (e.g., don't share customer phone numbers)
  2. Integrity: Ensure data accuracy; don't manipulate records
  3. Availability: Maintain systems for legitimate users
  4. Accountability: Take responsibility for system outcomes
  5. Respect for IP: Use licensed software; cite sources

Reference: Sri Lanka Computer Emergency Readiness Team (CERT|CC) Guidelines

❓ Practice Questions & Answers

Q1: Differentiate between data and information with a school-related example. [4 marks]
Answer:
Data: Raw, unprocessed facts without context. Example: "85", "Maths", "Term1"
Information: Processed data with meaning for decision-making. Example: "Student scored 85 marks in Maths Term 1 exam, which is above class average of 72"
• Information helps teachers identify student performance trends; data alone cannot.
[2 marks for definition + 2 marks for relevant example]
Q2: Explain THREE validation techniques used during data input. [6 marks]
Answer:
1. Range Check: Ensures numeric input falls within acceptable limits. Example: Age field accepts 16-60 for A/L applicants.
2. Format Check: Verifies data matches required pattern. Example: NIC number must be 12 digits or 10 digits + letter.
3. Presence Check: Confirms mandatory fields are not left blank. Example: "Index Number" cannot be empty in exam registration.
[2 marks each: 1 for technique name + 1 for explanation/example]
Q3: Why is 'timeliness' critical for information quality in emergency services? [3 marks]
Answer:
• In emergencies (e.g., ambulance dispatch), delayed information can cost lives.
• Real-time location data of nearest ambulance enables faster response.
• Outdated traffic information may lead to inefficient routing.
[1 mark per valid point]
Q4: List the SIX components of an ICT system and give ONE Sri Lankan example for 'Procedures'. [7 marks]
Answer:
Components (1 mark each, max 6): Hardware, Software, Data, People, Procedures, Networks
Procedure Example: "All government e-services must use two-factor authentication as per ICTA security policy" OR "School computer labs require login with student index number before internet access"
[1 mark for relevant local procedure example]
Q5: How has ICT reduced the 'digital divide' in rural Sri Lanka? Provide TWO specific initiatives. [4 marks]
Answer:
1. Nenasa TV/Online Classes: Free educational content via TV and YouTube during pandemic, reaching students without smartphones.
2. Community Information Centers (CICs): Government-established centers in divisional secretariats providing free internet/computer access for rural citizens.
[2 marks per initiative: 1 for naming + 1 for explanation of impact]

ЁЯОп Exam Tips for Unit 1

  • Always use Sri Lankan context in examples for higher marks
  • For "explain" questions: Definition + Example + Significance
  • Memorize the 8 quality characteristics using acronym: ART CC AVS (Accuracy, Relevance, Timeliness, Completeness, Consistency, Accessibility, Verifiability, Security)
  • Practice drawing the DPLC flowchart with validation checkpoints

1.1 Data and Information

In-depth Analysis of Data

Data is the foundation of Information and Communication Technology (ICT). Data refers to a collection of raw facts, words, symbols, or numbers that have not been processed and do not carry a specific meaning or purpose. The primary nature of data is that it acts as raw material used to produce information. When data is used alone, it does not provide meaningful conclusions for decision-making.

Examples of Data:

  • Measurements or images
  • Words and sounds
  • Marks, height, weight, age (quantitative data)

In-depth Analysis of Information

Information is the result obtained after processing data. It is meaningful, organized, and can be used for decision-making. Information is always processed, contextualized, and directly useful for making decisions.

Characteristics of Quality Information:

  • Accuracy: Must be correct for reliable decisions
  • Timeliness: Must be up-to-date
  • Completeness: Should contain all necessary details
  • Relevance: Must be appropriate for the task
  • Understandability: Should be easy to understand

Table 1: Comparison between Data and Information

Feature Data Information
Definition Unprocessed raw facts without meaning Processed, meaningful data used for decision-making
Nature Raw material Output
Usefulness Not directly useful for decisions Helps in decision-making

1.2 Data Processing Life Cycle and Drawbacks of Manual Data Handling

Data Life Cycle

The Data Life Cycle refers to the process of creating data, managing it to generate information, and removing data that is no longer needed.

Main Stages of Data Life Cycle:

  • Data Creation: Inputting required data into the system
  • Data Management: Secure storage and maintenance of data
  • Removal of Obsolete Data: Deleting outdated data

The main steps of the Data Processing Life Cycle (DPLC) are: Data collection, validation, processing, output, and storage.

Major Drawbacks of Manual Data Handling:

  • High risk of human errors: Mistakes and delays
  • Inefficiency: Time-consuming processes
  • Inconsistency: Data duplication and lack of standardization

1.3 Classification of Software: Open Source vs Proprietary

System Software and Application Software

  • System Software: Acts as a bridge between hardware and user (e.g., Operating Systems)
  • Application Software: Designed to perform specific tasks (e.g., MS Word)

Open Source Software (OSS) vs Proprietary Software

Open Source Software (OSS) provides access to its source code, allowing users to modify it. In contrast, proprietary software keeps the source code hidden and requires a license for use.

1.4 Use and Impact of Information and Communication Technology (ICT)

Areas of ICT Applications:

  • Education: E-learning, distance learning
  • Healthcare: Telemedicine, diagnostic systems
  • Business: E-commerce, online banking

Social and Environmental Issues in ICT:

  • Digital Divide: Inequality in access to technology
  • E-waste: Environmental pollution from electronic waste
  • Green Computing: Environmentally friendly use of ICT resources

Data Life Cycle (Extended)

Main 7 Steps of Data Life Cycle:

  • Data Generation: Creation or input of new data
  • Data Collection: Gathering data from various sources
  • Data Storage: Saving data securely (hard drives/cloud)
  • Data Processing: Converting raw data into information
  • Data Transmission: Sending data between locations
  • Data Usage: Using data for decisions or operations
  • Data Destruction: Permanently deleting unnecessary data

Advantages:

  • Data Security: Prevents misuse of data
  • Efficiency: Faster decision-making through proper management
  • Legal Compliance: Meets data retention regulations

рокроХ்роХроо் 1: роЕро▒ிрооுроХроо்

  • роЗродு роХро▓்ро╡ிрок் рокொродுрод் родро░ாродро░ роЙропро░்родро░ (GCE A/L) родроХро╡ро▓் рооро▒்ро▒ுроо் родொроЯро░்рокாроЯро▓் родொро┤ிро▓்роиுроЯ்рокро╡ிропро▓் (ICT) рокாроЯрод்родிро▒்роХாрой роЕро▓роХு - 1 роХுро▒ிрок்рокுроХро│் роЖроХுроо்[80, 87].
  • роЖроЪிро░ிропро░் родிро░ு. V. ропோроХро░ாроЬா роЕро╡ро░்роХро│ாро▓் роЗродு родொроХுроХ்роХрок்рокроЯ்роЯுро│்ро│родு[83, 91].

рокроХ்роХроо் 2: родро░ро╡ு (Data)

  • родро░ро╡ு: роТро░ு рооுро▒ைрооைроХ்роХு роЙро│்ро│ீроЯாроХ ро╡ро┤роЩ்роХрок்рокроЯுроо் роЕроЯிрок்рокроЯை ро╡ிроЯропроЩ்роХро│். роЗро╡ை родெро│ிро╡ாрой роЕро░்род்родрооро▒்ро▒ро╡ை[97, 99, 100].
  • ро╡роХைроХро│்:
    • роЕро│ро╡ுроЪாро░் родро░ро╡ு (Quantitative): роОрог்роХро│ாро▓் роЕро│роХ்роХроХ்роХூроЯிропро╡ை (роО.роХா: ро╡ிройாрод்родாро│ிро▓் рокெро▒்ро▒ рокுро│்ро│ிроХро│்)[101, 102, 107].
    • рокрог்рокுроЪாро░் родро░ро╡ு (Qualitative): роЗропро▓்рокுроХро│ைроХ் роХொрог்роЯு роЕроЯைропாро│роо் роХாрогрок்рокроЯுрокро╡ை (роО.роХா: рокூро╡ிрой் роиிро▒роо்)[101, 104, 106].

рокроХ்роХроо் 3: родро░ро╡ு ро╡ாро┤்роХ்роХை ро╡роЯ்роЯроо் рооро▒்ро▒ுроо் родроХро╡ро▓்

  • родро░ро╡ு ро╡ாро┤்роХ்роХை ро╡роЯ்роЯроо்: родро░ро╡ு роЙро░ுро╡ாроХ்роХроо், роЪேрооிрок்рокு, рокропрой்рокாроЯு рооро▒்ро▒ுроо் рокропройро▒்ро▒ рокோродு роЕродை роиீроХ்роХுродро▓் роЖроХிропро╡ро▒்ро▒ை роЙро│்ро│роЯроХ்роХிропродு[113, 115, 131].
  • родроХро╡ро▓் (Information): родро░ро╡ுроХро│ை рооுро▒ைро╡ро┤ிропாроХ்роХроо் (Processing) роЪெроп்род рокிрой் роХிроЯைроХ்роХுроо் роЕро░்род்родрооுро│்ро│ ро╡ெро│ிропீроЯு родроХро╡ро▓் роЖроХுроо்[118, 120].

рокроХ்роХроо் 4: родроХро╡ро▓ிрой் рокрог்рокுроХро│்

  • роТро░ு роЪிро▒рои்род родроХро╡ро▓் рокிрой்ро╡ро░ுроо் рокрог்рокுроХро│ைроХ் роХொрог்роЯிро░ுроХ்роХ ро╡ேрог்роЯுроо்: рокொро░ுрод்родроо் (Relevance), роХாро▓роо் (Time), родுро▓்ро▓ிропроо் (Accuracy), рооுро┤ுрооை (Completeness) рооро▒்ро▒ுроо் ро╡ிро│роЩ்роХிроХ்роХொро│்ро│ுроо் родрой்рооை[138, 139, 141, 146, 147, 149].
  • родроХро╡ро▓ிрой் рокொрой்ро╡ிродி (Golden Rule): родроХро╡ро▓் роЙро░ுро╡ாроХ்роХрок்рокроЯ்роЯ роиேро░род்родிро▓் роЕродрой் рокெро▒ுроородி роЕродிроХрооாроХ роЗро░ுроХ்роХுроо், роХாро▓роо் роЪெро▓்ро▓роЪ் роЪெро▓்ро▓ роЕродрой் рокெро▒ுроородி роХுро▒ைропுроо்[152, 154, 155].

рокроХ்роХроо் 5: родро░ро╡ு рооுроХாрооைрод்родுро╡роо் (Data Management)

  • рокெро░ிроп роЕро│ро╡ிро▓ாрой родро░ро╡ுроХро│ை (Big Data) роХைропாро│ுро╡родுроо் роЕро╡ро▒்ро▒ை роиிро▒ுро╡ройрод்родிрой் родேро╡ைроХ்роХேро▒்рок рокроХுрок்рокாроп்ро╡ு роЪெроп்ро╡родுроо் роЗрой்ро▒ைроп роЪро╡ாро▓ாроХுроо்[165, 166, 168].
  • роХைрооுро▒ை vs родாройிропроЩ்роХு: роХைрооுро▒ை рооுро▒ைро╡ро┤ிропாроХ்роХро▓ிро▓் роиேро░роо் роЕродிроХроо் роОроЯுроХ்роХுроо் рооро▒்ро▒ுроо் рокிро┤ைроХро│் роПро▒்рокроЯ ро╡ாроп்рок்рокுрог்роЯு. родாройிропроЩ்роХு рооுро▒ைропிро▓் ро╡ேроХроо் рооро▒்ро▒ுроо் родுро▓்ро▓ிропроо் роЕродிроХроо்[173, 174, 175, 179, 183].

рокроХ்роХроо் 6 & 7: роЗрогைропроо் (Internet) рооро▒்ро▒ுроо் роЕродрой் роЪேро╡ைроХро│்

  • роЗрогைропроо்: ро╡ро▓ைропрооைрок்рокுроХро│ிрой் ро╡ро▓ைропрооைрок்рокு роОройрок்рокроЯுроо். роЗродு 1969 роЗро▓் ARPANET рооூро▓роо் родொроЯроЩ்роХிропродு[189, 191, 193, 195].
  • роЗрогைропроЪ் роЪேро╡ைроХро│்: роЙро▓роХро│ாро╡ிроп ро╡ро▓ை (WWW), рооிрой்ройроЮ்роЪро▓் (E-mail), роХோрок்рокுрок் рокро░ிрооாро▒்ро▒роо் (FTP), роХாрогொро│ி рооாроиாроЯு (Video Conference) рокோрой்ро▒ро╡ை[207].
  • роиெро▒ிрооுро▒ை (Protocol): родроХро╡ро▓் рокро░ிрооாро▒்ро▒род்родிро▒்роХாрой ро╡ிродிроХро│். роЗрогைропроо் TCP/IP роиெро▒ிрооுро▒ைропைрок் рокропрой்рокроЯுрод்родுроХிро▒родு[204, 205].

рокроХ்роХроо் 8: роЙро▓роХро│ாро╡ிроп ро╡ро▓ை (WWW)

  • роЯிроо் рокேро░்ройро░்ро╕் ро▓ீ роОрой்рокро╡ро░ாро▓் 1991 роЗро▓் роЕро▒ிрооுроХроо் роЪெроп்ропрок்рокроЯ்роЯродு[213, 214].
  • HTTP: роХோрок்рокுроХро│ைрок் рокро░ிрооாро▒ роЙродро╡ுроо் ро╡ிродி[215].
  • URL: роТро░ு ро╡ро▓ைрод்родро│род்родிрой் родройிрод்родுро╡рооாрой рооுроХро╡ро░ி[227, 229].
  • Web Browser: ро╡ро▓ைрок்рокроХ்роХроЩ்роХро│ைрок் рокாро░்ро╡ைропிроЯ роЙродро╡ுроо் рооெрой்рокொро░ுро│் (роО.роХா: Google Chrome)[224, 225].

рокроХ்роХроо் 9: рооேроХроХ் роХрогிрооை (Cloud Computing) рооро▒்ро▒ுроо் рооுро▒ைрооை

  • рооேроХроХ் роХрогிрооை: роЗрогைропрод்родிрой் роКроЯாроХ роЪேрооிрок்рокு, рооெрой்рокொро░ுро│் рооро▒்ро▒ுроо் рокிро▒ роЪேро╡ைроХро│ைрок் рокெро▒ுродро▓்[258, 259, 261].
  • роЪேро╡ை рооாродிро░ிроХро│்:
    1. IaaS (роЙроЯ்роХроЯ்роЯрооைрок்рокு)[268]
    2. PaaS (роЪேро╡ைрод் родро│роо்)[274]
    3. SaaS (рооெрой்рокொро░ுро│்)[277]
  • рооுро▒ைрооை (System): роТро░ு рокொродுро╡ாрой роЗро▓роХ்роХை роЕроЯைроп роТрой்ро▒ிрогைрои்родு роЪெропро▓்рокроЯுроо் роХூро▒ுроХро│ிрой் родொроХுродி[279, 280].

рокроХ்роХроо் 10: роХрогிройி рооுро▒ைрооை

  • роХрогிройி роРрои்родு роЕроЯிрок்рокроЯைроЪ் роЪெропро▓்роХро│ைроЪ் роЪெроп்роХிро▒родு: роЙро│்ро│ீроЯு рокெро▒ுродро▓், роЪேрооிрод்родро▓், рооுро▒ைро╡ро┤ிропாроХ்роХроо், ро╡ெро│ிропீроЯு родро░ுродро▓் рооро▒்ро▒ுроо் роХроЯ்роЯுрок்рокроЯுрод்родро▓்[309, 310, 313, 314, 316, 318].
  • роХрогிройிропிрой் роХூро▒ுроХро│்: ро╡рой்рокொро░ுро│் (Hardware), рооெрой்рокொро░ுро│் (Software), роиிро▓ைрокொро░ுро│் (Firmware), роЙропிро░்рокொро░ுро│் (Liveware)[320].

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