🗄️ TASK 1: STORE – Save Your Data
📦 Internal vs External Storage
- Internal Storage: Computers store data in an internal hard disk drive (usually called the "C: drive").
- External Storage: Used when data is too large for internal storage.
- Common Storage Devices: Hard disk drive, CD / DVD, USB flash memory, Memory card.
💾 Specific Storage Devices
🔹 External Hard Disk
- Most common data storage device
- Biggest storage space available
- Can store ~1,000 movies or 1 million songs
🔹 CD / DVD
- CD (Compact Disc): Store documents, music, photos (not enough space for movies)
- DVD (Digital Versatile Disc): Evolution of CDs with much more space (~5 movies per disc)
⚠️ Warning: Be careful not to scratch the surface, or data will be lost!
🔹 USB Flash Memory
- Store/transfer data between computers or smartphones
- Very cheap, damage-resistant, various sizes
- Portable – carry on a keychain
- Nickname: "Memory stick"
🔹 Memory Card
- Very thin and small
- Used with smartphones, digital cameras, MP3 players, game consoles
- Transfer data from devices to PC/laptop
📜 History Fact: In the 70s and 80s, the main storage device was the floppy disk – thin, flexible magnetic disks. They are now obsolete due to very small storage capacity.
🖨️ TASK 2: PRINT – From Screen to Paper
📄 Printer Basics
- Definition: A printer outputs text, numbers, images, or photos from your screen onto paper.
- Connection: Usually connected via USB cable.
- Requirements:
- Computer must be connected to printer
- Printer must be turned on
- Materials: Print on various paper sizes, stickers, or envelopes.
🖨️ Types of Printers
✨ Inkjet Printer
- Most common type
- Uses 4 inks: cyan, yellow, magenta, black
- Sprays ink drops to create images
- Very affordable printers
- Needs special photo paper for perfect photos
⚡ Laser Printer
- Uses laser rays for printing
- Very high speed & print quality
- Now available in color (was B&W only)
- More expensive than inkjet
- Prints hundreds of pages very fast
🧾 Thermal Printer
- Found in shops, supermarkets, restaurants
- Prints receipts on special long, narrow paper
- Usually prints black text only
🏗️ Professional Printers
- Dot Matrix: Oldest type; prints multiple copies simultaneously but low quality (rarely used now)
- Plotter: Biggest printer type; used for architectural plans & large banners; evolved from pen-based to inkjet
💡 Smart Tip: Recycle paper, ink, and toner cartridges to protect the planet. Refill empty ink cartridges to save money!
❓ Hands On! – Quick Quiz
- ✅ If you were an architect, you would use a plotter.
- ❌ An inkjet printer uses cyan, yellow, magenta, and black (not just black, white, red).
- ✅ You can print many copies at once using a dot matrix printer.
- ✅ A laser printer is more expensive than an inkjet printer.
- ✅ Shops print receipts using thermal printers.
- ❌ Inkjet printers are cheap to buy, but their ink can be expensive.
- ✅ High-quality printing is a feature of laser printers.
🎥 Video Camera
- Definition: A recording device used to capture motion pictures.
- Storage Evolution:
- Past: Videotapes and optical discs
- Present: Memory cards (easy transfer to computers)
- Device Evolution:
- First cameras: Big, heavy, low quality
- Modern cameras: Small, easy to use, record hours on tiny cards, some support night recording
- Uses: Daily moments, celebrations, TV/film production, scientific events, spacecraft equipment.
📜 History Fact: John Logie Baird created the first video cameras, and the BBC used them in experimental broadcasts in the 1930s.
🎙️ TASK 3: CAPTURE – Capture the Present, Preserve for the Future
🎤 Microphone
- Function: Captures sound waves (like your voice) and converts them to digital form
- Usage: Recordings saved as audio files for later listening or emailing
- Applications: Telephones, smartphones, video recorders, karaoke, movie production, radio/TV
- Chatting: Use mic to speak + headphones to listen when video calling
📹 Web Camera (Webcam)
- Function: Feeds live video/images into a computer in real time
- Capabilities: Record clips, save, email, or upload to Internet
- Features: Many have integrated mics; some wireless; built into many laptops/monitors
- Advanced Uses:
- "Magic Mirror" for virtual try-ons
- Telecommuting / remote work
- Security cameras
🌐 Named after the World Wide Web – mostly used when online!
📷 Digital Camera
- Function: Image capture device for high-definition photos
- Technology: No film – preview photos instantly on screen
- Storage: Uses memory cards
- Nickname: "Digicam"
- Workflow: Transfer to computer via memory card for editing
- Modern Integration: Built into smartphones & tablets for casual "snapshot" photography + video/audio
🎯 Hands On! – Activities & Matching
| Device | Best Used For |
|---|---|
| 🎤 Microphone | Recording your voice |
| 🎥 Video Camera | Capturing events like a birthday party |
| 📹 Webcam | Video calling a friend |
| 📷 Digital Camera | Taking photographs on your holiday |
💭 Reflection Questions
- Which of these capture devices do you have at home?
- Which of these capture devices do you have at school?
🧠 Quick Storage Quiz
- To transfer a game from computer to tablet → Memory card
- DVDs are the evolution of → CDs
- Easiest ways to store data → Memory cards, USB flash, or CDs
- To store a movie → External hard disk drive (CDs lack space)
- Inside a digital camera you'll find → Memory card
📚 Study Tip: Review each device's purpose, advantages, and real-world applications for better retention!
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