New Tech essays

New Tech essays We can see many new technologies appeared in the market recently. In this report, I will discuss about three of them, which are the technology of DVD (Digital Video Disc), MP3 and Digital Camera. With the size of a Compact Disc (CD), a Digital Video Disc (DVD) can contain a much larger amount of data than a CD. It also contains music and videos with the best sound and picture quality. The technology of DVD also allows the moviemakers to add more features in a disc that the Video Cassette Tape cant do. Moreover, the quality of the movie in a DVD is pretty much like the movie we usually watch in the theater. DVD players also play standard audio CDs. Lowering prices on multi-disc models mean that it's practical to have just a DVD player for playback of multiple audio CD and video DVD discs. There is a catch if you record your own CDs: While many DVD players can accommodate standard CD and DVD formats (and any Commercial title), they may have problems reading the CD-R and CD-RW discs, which you record yourself, no matter what type of device you used to record the discs. Today, there is one out of four families in the United States has a DVD player at home and the VCRs are go ing to be out-of-date in the next few years. MP3 is an abbreviation for MPEG-1 Audio Layer 3. A standard for audio data compression determined by the Motion Picture Experts Group, which is an ISO (International Organization for Standardization) working group. It enables compression of audio data to about 1/10 of the data size of a standard compact disc. Since the MP3 encoding algorithm is disclosed, there are various encoders/decoders compliant with this Standard, including freeware that is available for no charge. Thus, the MP3 standard is widely used in the computer field. Many MP3 players look much like portable radios, headphones and all. Others resemble large pens or even watches. Inside each player is a computer chip and memory that can store a...