This key facts covers Wired Networks (Ethernet) within Wired vs Wireless for GCSE Computer Science. Revise Wired vs Wireless in Networks for GCSE Computer Science with 15 exam-style questions and 18 flashcards. This is a high-frequency topic, so it is worth revising until the explanation feels precise and repeatable. It is section 3 of 9 in this topic. Use this key facts to connect the idea to the wider topic before moving on to questions and flashcards.
Topic position
Section 3 of 9
Practice
15 questions
Recall
18 flashcards
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