The Development of Different Communications Equipment
The Development of Different Communications Equipment
This past century had proven to be mankind's greatest period of technological evolution. If anything was to be named as the greatest contributor, it would be communication. From the early "speaking tubes" in the mid-1800s to present day satellite relays, much have transpired in what is considerably a short span of time, changing the world as man knew it in almost an instant. Here is a brief list of the communications equipment which proved to be pivotal devices in the development of communications technology and brought man from his precious paper scrolls to this web page.
The Speaking tube
In the 1830s, a communication system which allowed people to transmit acoustic messages from one room to another through tin tubes became a popular installation in big residences. These tubes ran from room to room, each end equipped with a whistle to call attention toward it when a person was ready to relay a message on one. Descriptions from the Scientific American, Jan. 27, 1849 issue claim the system to be capable of enabling a receiver to hear a whisper from over a thousand yards from the source.
Further developments into the tube system led to the Pneumatic Tubes which carried paper (cash, receipts and other documents) through foot-pedal driven pressurized tubes running along building walls from one office to another. The system was used extensively in business facilities way into the middle of the 1900s.
The Wire Telegraph
Considered as the concept which opened the doors to modern day wired transmission, this system uses bursts of electric signal which ran along a wire with receiving and transmitting devices on both ends. Developed in 1832 by Samuel Morse but was only put into commercial use in 1844 with a wire running from Baltimore to Washington, messages were sent in coded sequences of dots and dashes which the transmitter wrote on a paper strip and converted into electric signals made audible by a sounder. The receiver then interprets the sound and rewrites the code from the receiving and translates. The dots-and-dashes sequence codes came to be known as the Morse code. Applications using light also came to use with ship to shore communications over visible distances.
The Telephone
Taking electric wire communication a level higher, Alexander Graham Bell introduced the Telephone in 1876, then a voice communications system which can only be operated point-to-point. Developments by the Connecticut District Telephone Co. a year later enabled multiple distribution of telephone units, however all were connected to a single party line which meant only 1 active connection may function at time and any party may listen in on a conversation from any receiver. At the turn of the century, the switchboard board was introduced into the telephone system where active operators had to be asked to connect individual lines to another from a set of ready plugs on a board to make the call private and available only to the requested line.
Efforts to develop and enhance war communication during the early 1930s led to further exploration into electronics and radio technology, which eventually saw its application in the telephone industry. From the early 1940s, the advancement of electronics and its use in communication dramatically sped up developments in telephone technology, bringing forth most of the equipment we find ourselves familiar to today. From the 1960s through the middle of the 1980s, the Pulse dialing system was a telephone unit's way of identifying numeric contacts, to which the introduction of the Tone dialingsystem (touchtone) brought remarkable improvement in both locationand connection speed, ushering in the advent of digital communication.
Mobile Technology
Parallel developments in radio science and microelectronicsbrought forth the most improvement in communications technology. Powerful yet bulky components were replaced by smaller and more powerful ones, reducing complex wiring systems and magnetic-strip memory systems into silicon logic boards and microchips, thus also greatly reducing power requirements for systems which used to entail large quantities, creating more efficient systems for way less requisites. Radio transceiver technology, which used to be the most portable communication equipment, also found application in Telephone technology. With the reduction in power requirement and boost in output, wireless Telephone transmissions through radio frequencies became achievable. With this feat, a host of other applications came to be accessed by what used to be a mere telephone, making the most use of frequencies outside the VHF and UHF range of most Radio Communications equipment. Bluetooth, Infrared, Wi-Fi (wireless fidelity), GPRS (Global Packet Radio Systems) and 3G signals being the most commonly used.
The Internet
Currently the most popular means of communication, the Internet did have a rough start as it functioned in an entirely different platform from what a world familiar to ringing phones and rounding mailmen are accustomed to. During the early 1990s, the common man's concept of a Personal Computer was something more of a luxury than a necessity. It was viewed by most as an exclusive business tool, far from today's idea of being a household appliance. Yet again, innovations in production and manufacturing (not to mention unethical labor cost cuts) have helped reduce retail market prices for technology products, thus giving the common folk access to newer technology. With developments going faster than ever, the Internet's potential as a very vital means of communication and information transfer is yet to be truly measured.
With all these advancements in communication equipment still unfolding, one may still think of a few disadvantages: it will be harder to find an excuse not to call your mother-in-law on Christmas.
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