Page 588 - Ultimate Visual Dictionary (DK)

THE MODERN WORLD
Personal music and video

THE FIRST BATTERY-DRIVEN PORTABLE source of sound MP3 PLAYERS
and music was the transistor radio of the 1950s. In the
1970s, the magnetic audio cassette tape allowed recordings Headphone
jack
to be played on portable tape players. Also, new metal
alloys permitted the tiny but high-power
magnets needed for lightweight earphones. Back/Home
Headphone Mode switch button
In the 1980s, compact discs brought jack Record/Stop
music into the digital era. Sony’s Volume control button
MD, or minidisc, introduced re- Power/Play/ Volume
recordable CDs that used magnetic Pause button control
and optical technology. From the Display
mid 1990s, music could be stored
Zap button
in all-electronic digital form in a
microchip, usually in the MP3 file Bass/Play
format. These files can be transferred Earphone mode
between devices and via the Internet.
Next/Previous On/Off/ Shuttle
Today, a variety of portable media USB port track control Pause button switch
gadgets can record, play, and store SONY B-SERIES MP3 PLAYER
LED
video, photographs, and music in
electronic form. CREATIVE ZEN STONE
Neck
band
Volume
Subwoofer controls

USB jack
Shuffle
Volume controls button
Jog lever
Satellite
speaker
SONY W-SERIES WALKMAN
JBL SPYRO
SPEAKERS
Standby
button iPod
Satellite
cable
Speaker
enclosure

ZEPPELIN IPOD
Remote control
SPEAKER DOCK

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