1937 - The hearing loop
The hearing loop was invented by Joseph Koliakoff in 1937.
It is a special type of sound system for use by people with hearing aids, providing a magnetic, wireless signal that is picked up by the hearing aid when it is set to 'T' (Telecoil) setting.
Its invention transformed the accessibility of events for those with hearing impairments and is now a requirement for all venues as part of the Equality Act.
1937 - The walkie talkie
A walkie-talkie, more formally known as a hand-held transceiver, is a hand-held, portable, two-way radio transceiver.
Before the mobile phone, it changed the dynamic of communication into something where you could talk to someone a long distance away while still having the flexibility of mobility.
The first device to be widely nicknamed a "walkie-talkie" was developed by the US military during World War II and is still used by on-site organisers of large-scale events.
1953 - The printer
The first mechanical printer was designed in the 1800s, but it was not until 1953 that Remington Rand developed the first high-speed printer to be used with the UNIVAC computer.
Although typewriters were still primarily used at this time, it saw a new era of ease for businesses everywhere.
1956 - Conference calls
Conference calling was invented by Bell Labs in 1956 and introduced to the public by AT&T at the 1964 New York World's Fair.
Called the Picturephone, this invention invited the visitors to talk to persons thousands of miles away at Disneyland in Anaheim, California.
The internet didn’t exist yet and the computers used were as big as rooms, but it started the process we now rely on every day to communicate with larger groups.
1964 - Fibre optic cables
Fibre optics is the contained transmission of light through long fibre rods of either glass or plastics.
Since the 1930s thin filaments, or fibres, of glass have been used to see inside the body, but these long remained unusable for long-distance information transfer because too much light was lost along the way.
In the 1960s Charles Kao presented a solution: fibres of very pure glass transported sufficient light. Together with laser technology, his solution has made telecommunication using optical fibres possible.
Fibre optic cables are used for transmitting voice, images, and other data at close to the speed of light.