1. Computer system
1.1. Hardware
1.1.1. Input Devices
1.1.1.1. mouse
1.1.1.2. keyboard
1.1.1.3. microphone
1.1.1.4. webcam
1.1.2. Output Deivces
1.1.2.1. monitor
1.1.2.2. printer
1.1.2.3. speaker
1.1.3. Storage
1.1.3.1. RAM
1.1.3.2. ROM
1.1.3.2.1. SSD
1.1.3.2.2. HDD
1.1.3.2.3. DVD
1.1.3.2.4. Flash memory
1.2. Software
1.2.1. Application software
1.2.1.1. word processors
1.2.1.2. web browsers
1.2.1.3. email clients
1.2.1.4. video editing
1.2.2. System software
1.2.2.1. Windows
1.2.2.2. Antivirus programs
1.2.2.3. file compression tool
2. The Internet
2.1. Internet protocols and technologies
2.1.1. WWW (World Wide Web)
2.1.2. LAN
2.1.3. WAN
2.1.4. IP Address
2.1.5. FTP
2.1.6. URL
2.1.7. TCP
2.1.8. HTTP
2.1.9. HTTPS
2.2. Network
2.2.1. Server
2.2.2. Router
2.2.3. Host
2.2.4. Hotspot
2.2.5. Modem
2.3. Web and browsing
2.3.1. Web browser
2.3.2. Streaming
2.3.3. Cookie
2.3.4. Plugins
2.3.5. Search engine
2.3.6. Bandwith
2.3.7. Cache