The Old Telephone vs. the iPhoneÂ
Brief History:
The concept of fast communication across long distances started out as the telegraph in 1838. This invention was able to send instant messages across wired in the form of “buzzing” patterns which people commonly call Morse Code. It wouldn’t be until 1876 that Alexander Graham Bell invented the first telephone. The operation of the telephone was initially pretty crude, as operators would have to manually connect lines. Over the course of about 100 years, calls would begin to be relayed by radio signal via microwave towers, and then followed by electric routing (digitization). This electronic switch paved the way for digital data and communication transmission.
The Old TelephoneÂ
– First model was invented in 1876 by Alexander Graham Bell
– Analog phones persisted up until the 1980s
– Large and heavy
– Could only send voice signals over a wired network
– Low quality and relatively high noise
– The overall mechanism consisted of converting sound (voice) to an analog electrical signal that traveled through a copper wire, back to sound on the receiving end
   – Voice transmitted continuously as a wave
   – While traveling across copper wire, the signal was susceptible to noise, distance loss, and interference
The Modern iPhone
– First model was made in 2007 by Steve Jobs after the creation of 3G, the first mobile internet
– Has a variety of uses other than just communication via calls/voices
– Instead of wires, iPhone use wireless networks and digital signals with the help of cell towers, Wi-Fi, and satellites
– In digital signals, voices are recorded, encoded, compressed, and then sent wirelessly to a receiver that unpacks and decodes the message
   – Avoids noise and interferenceÂ