Wired Connections
A wired connection sends data through a physical cable, so most of its drawbacks come from that cable having to exist. Because a cable has a fixed length, the range of the connection is limited: a device has to sit within reach of a port.
A device on a wired network cannot be moved freely from place to place. A desktop in a small recording studio can only be used where its cable reaches the wall socket, so you cannot carry it across the room to work next to the drummer. Nothing is broken — the cable simply will not stretch.
Wired connections also need physical installation: someone has to fit the cables and the ports they plug into. That fixes where devices can go and makes adding or moving equipment less flexible, because a new cable run or port may be needed first. Running a second cable to a new desk in a room with solid brick walls could mean lifting floorboards or chasing out plaster, so the network grows slowly and at a cost.
A damaged cable breaks communication for whatever it carries. A chair rolled over a trailing cable cuts one device off; a cable feeding a cabinet of equipment can take out part of the network at once, until someone finds and replaces it.
Wireless connections avoid these problems. They may be preferable when users need mobility, such as staff carrying a tablet around a warehouse, or when cabling is impractical. The trade-off is generally lower speed, higher latency and a greater security risk, because the signal travels through the air and can be picked up without anyone touching a cable. Wired is not automatically better in every way — it suits fixed devices that need speed and security, but it is the wrong choice for anything that has to keep moving.
Edexcel GCSE Computer Science · Wired Connections