From a purely technical viewpoint, broadband refers to a “broad” bandwidth (a term used to describe the range of frequencies that can be used to transfer data over a network). The “broader” this band, the more capable it is of transferring large amounts of data quickly. With its early use in radio, the most narrow of bands could only carry Morse code, while the broader bands could carry speech. The term may have originated among radio users, and focused on radio transmission, the term has now come to represent many other means of data transfer.
Broadband today refers mostly to high-speed internet connections designed for delivering large files and rich media content. The successor to early dial-up services, broadband shifted the internet away from text heavy formats toward audio-visual experience. Modern broadband connections can download as well as stream images, audio and video content seamlessly and without interruption. Varying degrees of broadband services exist, all at various prices from many providers. While they share a common goal of finding a unique niche to fill, most services are similar, and will all take the user to the same internet.
“Broadband” is a term that is relative to the timeframe it’s mentioned in. The “broadest” of bands in early radio could only transfer voice, while modern broadband has exceeded these capabilities more than 100 times over. The broadband of today will likely be a footnote in the broadband of tomorrow, however for now it simply has come to mean the fastest means of transferring data.