The History of Radio(라디오의 역사)
The Early Years (초기)
1877년에, Thomas Edison는 기계 원통에 처음으로 "메리가 어린양을 가졌다"라고 기록하였습니다. 10년후 Heinrich Hertz는 전류가 파동을 가진다는 것을 증명하였습니다.
1895년에, Guglielmo 마르코니는 처음으로 라디오 시그널을 1마일 밖에있는 가족에게 보
audio encodings.
The term does not refer only to the existence of technology, but also the mainstream integration of such technology. For example, as of the beginning of the 21st century, animated holograms exist, but are far from being commonplace, whereas one might imagine that such technology will be available for home use in the same way as laptops are available to the general public today
DVD, Digital Video Disc 혹은 Digital Versatile Disc 라 불리는 이 Disk는 다음 세대의 Optical Disk Storage Technology이다. 이 매체는 Computer data, audio 뿐만 아니라 Vidoe CD보다 기억용량은 크지만 크기는 동일하다. DVD는 computers, Home Entertainment 결국에 가서는 Audio CD, Videotape, Laserdisc , CD-ROM , Video Game까지 대체할 것으로 보인다.
audio, or even taste cues.
In the field of marketing, scholars have agreed that there are three major trends that are newly arising. These include the emphasis on social relationship, brand relationship, and emotional relationship. Social relationship is mainly achieved through Social Networking Services marketing, where businesses actively communicate with consumers and apply their responses d
Audio division and VAIO division made digital music player. Users also got confused about the devices, as it couldn't play MP3 format but could only play ATRAC, which is made by Sony. It was too difficult and inconvenient for the consumers to use that devices and download music. Consequently, Sony failed.
According to the statistic, Sony believes they achieved a high market share the Walkman®