The Most Popular Music Playing Devises.

By: Thomas Savell and Savannah NimpferClass: 3B

The Record Player!!!

• Was invented in 1877 by Thomas Edison.• The record player used a needle, that was

attached to a magnet. The needle would read the groves in the record which would produce a series of sounds, that would vibrate which then would be translated and amplified by a horn like speaker.

• Originally tin foil was used for the recording but later was changed to a flask disk.

Record Player Continued!!

• It was originally made with a funnel/speaker for amplifying the vibrations made by a series of coils. The coils would vibrate when the needle attached to a magnet would scratch against a plastic type of a record.

• Many people at first it was used as a way to study the human language but then was discovered that it could play music which made it useable by everyone.

The Portable Cd Player

• Was invented in 1984 by Sony Inc.• Originally the Cd player came with fast forward,

rewind, play/pause, hold, stop, and liquid crystal display.

• An anti-shock hardware was installed later to help stop skipping on Cds and then an electronic skip protection was also made to stop skipping too.

• People of all ages.

I-Pod!

• On October 23, 2001 Tony Faddel and about 30 other designers invented the I-pod for Apple Inc.

• 2 ARM cpu running at 90Mhz, A Samsung sy6stem chip, Sigma tel chip that handles and audio decoding of the music, Arrus logic chip,25.4 micro drive, flash memory and, internal lithium polymer battery.

• Over the years size, weight, and storage to meet all customers needs.

• Everybody, who can afford it.

References!

• www.wikipedia.com• www.encyclopedia.com• www.summercore.com