The document compares old technologies to newer technologies in various domains such as communication, photography, music, storage, and more. It describes the door knocker and mechanical chimes as early visitor announcement systems, and notes that doorbells are now powered by electricity and can be connected to smart phones. Polaroid cameras allowed for instant photo development, but have been replaced by digital cameras and smartphone photo sharing on Instagram. Typewriters were revolutionary for writing but laptops and computers now dominate. Karaoke evolved from coin-operated singing machines to downloadable apps and learning-based systems. Landline phones were replaced by mobile cellphones and VoIP technology, while telegrams were superseded by email, SMS, and online chat.

1. THEN VSTECHNOLOGIES NOWTECHNOLOGIES
DOOR KNOCKER
The simplest pre-electricity example of a visitor-announcement system
was the door knocker that makes a sound when the visitor banged the
hinged knocker onto the metal plate installed under it. Mechanical chimes
were made using a small bell, installed inside the house that was
manually activated when a visitor would pull a chain or string to ring the
bell. With advancement of time, doorbells are powered by electricity.
SMART DOORBELL
The number of sounds, physical designs and advanced features
available in door chimes today are nearly endless. Doorbells can now
be connected to smart phones to monitor home.
POLAROID CAMERA
That gratifying feeling of developing your images instantly, and
anticipating the appearance of the images you’ve captured on a neat little
square. We all know how much we loved our Polaroid cameras. Polaroid
stopped manufacturing the film in 2008 and digital cameras have been
around since 1995.
INSTAGRAM
Then along came Instagram, making snapping instant photos much
more convenient, creating an entire network of amateur
photographers across the globe.
TYPEWRITERS
Writing has been known to men since time began. Archaeological
excavations found artifacts and object with symbols and signs proving
ancient human writing. The typewriter had become a revolutionary
invention when Henry Mill patented it in 1714. The typewriter was every
writer’s dream.
LAPTOP, COMPUTER
As the personal computer (PC) became feasible in 1971, the idea of
a portable personal computer soon followed. The IBM 5100, the
first commercially available portable computer, appeared in
September 1975. Since then portable computers has changed
significantly in form and features.
KARAOKE PLAYER
The karaoke styled machine was invented by Japanese musician
Daisuke Inoue in Kobe, Japan, in 1971 to provide recordings of his
performances so that this guests could sing along. Realizing the
potential for the market, Inoue made a tape recorder-like machine
that played songs for a 100-yen coin each. Karaoke became so
popular that VCD players offered karaoke VCDs.
SMART KARAOKE
Karaoke applications are now available for download in App
stores. Some have combined music and learning system to make
singing more fun.
ANALOG PHONE
On March 10, 1876, Alexander Graham Bell spoke into his device and said
to his assistant, “Mr. Watson, come here, I want to see you.” In doing so,
Bell launched the telephone era with the first bi-directional electronic
transmission of the spoken word. Landline phones or also known as Plain
Old Telephone Service became a commodity among homeowners.
CELLPHONE AND VOIP PHONE
The first device that really resembled a mobile phone wasn’t until 1979
though, in Japan. The technology greatly expanded during the 1980’s.
Their mainstream popularity really took off in the mid 1990’s and from
the late 90’s to the early 2000’s. Comes VoIP phones that is rapidly
gaining enthusiasm especially among businesses.
TELEGRAMS
Electrical Telegraphs sent electrical signals across conductive wires, as
patented in 1750 by Benjamin Franklin. This means of communication
was developed to enable the transmission of messages without an actual
physical exchange. Telegraphic communication was a predecessor to
e-mail.
EMAIL, SMS MESSAGES, CHAT
Now there are more ways to talk and send messages from anywhere
to any place. Technology paved way for people to connect easily and
in real-time.
FLOPPY DISK
A floppy disk came about as a result of demand for a more portable
storage device for home PCs. The disk can store up to 1.2MB. Classic
computer games of this era, such as Sierra King’s quest series, were
shipped on these disks.
PORTABLE HARD DRIVE
Portable hard drives are useful for backing up images, video, audio, and
other important files. A single terabyte can hold about 16 days of
DVD-quality video.
DISC PLAYER
In 1979, Sony’s Walkman reached the market as the first portable music
device with dual capabilities of playing the radio and cassettes. Walkman
released a CD player version in 2006, to jibe with the technological
changes
IPODS
In 2010, Walkman ceased production of further products. With iPods and
phones that stream media, you don’t have to carry cumbersome CDs or
cassette tapes wherever you go.
11:30
12
Never too late
Never too soon
www.nteksystems.com