Wired Networks (Ethernet)

What is Wired Networking?

Devices connect using physical cables - typically Ethernet cables (Cat5e, Cat6, Cat7). The cable plugs into the device's Ethernet port (RJ-45 connector).

How It Works:

• Ethernet cables: Twisted pair copper wires inside protective sheath
• Cable categories: Cat5e (1 Gbps), Cat6 (10 Gbps), Cat7 (10+ Gbps)
• Physical connection: Cable plugs into NIC's Ethernet port
• Switches: Connect multiple wired devices in a network
• Signal transmission: Electrical signals travel through copper wire

Wired Network Advantages:

• Very fast speeds: 1-10 Gbps typical (Gigabit Ethernet standard)
• Stable performance: Consistent speeds - no fluctuations
• Low latency: Minimal delay - crucial for gaming and real-time applications
• More secure: Must physically access cable to intercept data
• More reliable: No interference from walls, other devices, or weather
• Unlimited devices: No bandwidth sharing issues (switched connections)
• No signal degradation: Performance independent of distance (up to cable limits)

Wired Network Disadvantages:

• Limited mobility: Device tethered to cable - can't move around
• Installation effort: Cables must be run through walls, under floors
• Less convenient: Need physical connection point wherever you work
• Messy cabling: Lots of cables can look untidy
• Not suitable for mobile devices: Phones, tablets can't practically use cables
• Port limitations: Limited by number of physical ports on switch

Best Uses for Wired:

• Desktop computers: Don't move, need maximum speed
• Gaming PCs: Low latency crucial for competitive gaming
• Servers: Need reliable, fast, secure connections
• Security cameras: Reliable transmission of video feeds
• Smart TVs/Streaming: 4K/8K streaming needs high bandwidth
• Office workstations: Stationary computers prioritize performance