COMPUTER & NETWORKING
Building The Future On The Foundation Of Excellence
A computer is an electronic device that processes data to provide meaningful information. It follows the Input → Process → Output model.
🧩 2. Basic Components of a Computer
| Category | Components | Function |
|---|---|---|
| Input Devices | Keyboard, Mouse, Scanner | To enter data into the computer |
| Output Devices | Monitor, Printer, Speaker | To display or output data |
| Storage Devices | Hard Drive, SSD, USB Drive | To save data |
| Processing Unit | CPU (Central Processing Unit) | \”Brain\” of the computer |
| Software | Operating Systems & Applications | Runs and manages programs |
📚 3. Important Software Concepts
Operating System: Windows, macOS, Linux — manages all computer functions
Application Software: MS Word, Excel, Chrome, Photoshop, etc.
Utility Software: Antivirus, backup tools, file compressors
🧠 4. Essential Computer Skills
File and folder management
Using Microsoft Office (Word, Excel, PowerPoint)
Internet browsing and email
Installing/uninstalling software
Shortcut keys and basic troubleshooting
🌐 BASICS OF COMPUTER NETWORKING
🔌 1. What is Networking?
Networking is the practice of connecting two or more computers/devices to share resources like files, internet, and printers.
🧱 2. Types of Networks
| Network Type | Description | Example |
|---|---|---|
| LAN | Local Area Network (small area) | Home, office |
| WAN | Wide Area Network (large area) | Internet |
| MAN | Metropolitan Area Network | Campus or city-wide network |
🔗 3. Basic Networking Devices
| Device | Purpose |
|---|---|
| Router | Connects different networks, like to the internet |
| Switch | Connects multiple devices within LAN |
| Modem | Converts digital signals to analog (for ISP) |
| Access Point | Extends wireless connectivity |
📡 4. Wired vs Wireless Networking
| Type | Medium Used | Examples |
|---|---|---|
| Wired | Ethernet cables | Office networks |
| Wireless | Wi-Fi, Bluetooth | Home Wi-Fi, Mobile Hotspot |
🔐 5. Basic Network Terms
IP Address: Unique number assigned to each device on a network
DNS: Converts website names to IP addresses
Firewall: Security tool to block unauthorized access
Bandwidth: Speed/capacity of your internet connection
🎓 Learning Scope
| Topic | Learning Outcome |
|---|---|
| Computer Basics | Operate a PC, type, use software/apps |
| Networking Basics | Set up Wi-Fi, share files, troubleshoot |
| Internet & Security | Safe browsing, protect data, use antivirus |
💼 Job Roles After Learning Basics
Computer Operator
Office Assistant
Data Entry Clerk
IT Support Technician (with more training)
Network Technician (with advanced networking)
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- First floor, sahu complex, Lalganj, Lalganj Village, Lalganj, Pertol, Jharkhand 835103
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