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Compact audio discs were developed by Philips and Sony in the 1980s. The disc consists of a clear layer of polycarbonate plastic laid on top of a reflective aluminium surface. Data is magnetically recorded and stored on the disc digitally in binary code. The �1s� are represented by small pits in the plastic, while the �0s� are the remaining smooth plastic surface. When the disc is played, a laser scans its surface with the effect that only the �0� areas reflect the beam back. These reflected pulses are picked up by a photodetector, which converts them into a digital electrical signal. By the early 1990s CDs had become the prevalent medium for audio recordings, offering better sound quality than vinyl records or cassettes. Get premium, high resolution news photos at getty
171 Compact Digital Audio Disc Stock Photos, High-Res Pictures
Vintage Sony Discman D-171 CD Compact Player, MegaBass
171 Compact Digital Audio Disc Stock Photos, High-Res Pictures
Floppy disk - Wikipedia
Bring back the 90s with this vintage Sony Discman D-171 CD player. The sleek gray model, manufactured in Malaysia, is perfect for playing your
Vintage Sony Discman D-171 CD Compact Player, MegaBass
26,044 Compact Disc Digital Audio Royalty-Free Photos and Stock
26,044 Compact Disc Digital Audio Royalty-Free Photos and Stock
External DVD Drive USB 3.0 Type-C CD Burner Portable
Sony D-172CK Discman And New MDR-101LP Headphones W/Wall Charger
171 Compact Digital Audio Disc Stock Photos, High-Res Pictures
Specs, Brand, Sony, Model, D-171, Color, Dark grey and black, Battery, 2x AA, Manufactured, 1996, Headphones Color, Orange, Format, CD, Bring back the
Sony Discman D-171 Portable CD Player
Panasonic 4K Blu Ray Player, Ultra HD Premium Video Playback and
AI can now master your music—and it does shockingly well
26,044 Compact Disc Digital Audio Royalty-Free Photos and Stock
