adsl
Word family
Synonym discussion
Sense: noun/1
ADSL, broadband, fibre, and cable all describe ways of connecting to the internet, but they differ in speed and technology. ADSL uses existing copper phone lines and is slower than fibre or cable. Broadband is the broadest term — it simply means any high-speed internet, so ADSL is one type of broadband. Fibre-optic broadband sends data as light through glass cables and is much faster than ADSL, but it is not available everywhere. Cable internet uses the same coaxial wiring as cable TV; it is typically faster than ADSL but may slow down when many neighbours are online at once. Dial-up is the oldest option — it ties up the phone line completely and is far too slow for streaming or video calls. For example, you might say 'The village only had ADSL for years, but last month they finally got fibre.'
Common collocations
Nouns
- ADSL connection
- ADSL line
- ADSL modem
- ADSL service
- ADSL broadband
- ADSL speed
- ADSL filter
Phrases
- ADSL is short for
- full form of ADSL
Etymology
ADSL stands for Asymmetric Digital Subscriber Line. The technology was developed at Bellcore (Bell Communications Research) in the late 1980s. The word 'asymmetric' refers to the key design feature: download speeds are much faster than upload speeds, because most home users receive far more data than they send. ADSL became widely available in the late 1990s as telephone companies found a way to deliver broadband over the copper wires already installed in millions of homes.