Wired and Wireless Networks (AQA GCSE Computer Science): Flashcards
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15 cards from this deck
Two main ways devices connect in networks
Two main ways devices connect in networks
Wired (using cables) and wireless (using radio signals)
What wired networks use to connect devices
What wired networks use to connect devices
Physical cables
How copper cables transmit data
How copper cables transmit data
Electrical signals through copper wires
Copper cable bandwidth range
Copper cable bandwidth range
100 Mbps to 1 Gbps
Copper cable effective distance
Copper cable effective distance
About 100 metres
Special sockets for wired network connections
Special sockets for wired network connections
Ethernet ports
How fibre-optic cables transmit data
How fibre-optic cables transmit data
Pulses of light through glass strands
Fibre-optic cable max bandwidth
Fibre-optic cable max bandwidth
Up to 100 Tbps
Fibre-optic cable transmission distance
Fibre-optic cable transmission distance
100 kilometres or more
What wireless networks use to transmit data
What wireless networks use to transmit data
Radio waves
Wireless network effective range (from access point)
Wireless network effective range (from access point)
Up to 100 metres
Typical wireless network bandwidth
Typical wireless network bandwidth
Around 300 Mbps
Security advantage of wired networks
Security advantage of wired networks
Data travels in cables, harder to intercept than broadcast signals
Key benefit of wireless networks for users
Key benefit of wireless networks for users
Freedom of movement/mobility
Common wireless network drawback
Common wireless network drawback
Slower speeds and less stable than wired