Which device is used for reading and writing CD and DVD?

Which device is used for reading and writing CD and DVD?

• A. Used for reading and writing CD and DVD
• B. A type of memory
• C. A device that outputs audio
• D. A display adapter

Answer: (A)

The concept here is identifying the device that accesses data on optical discs. A CD/DVD drive, often called a CD/DVD writer or burner, is designed to read data from CDs and DVDs and, on writable media, to encode new data by burning or erasing layers. It uses a laser to scan the disc’s surface and convert the pits and lands into digital information the computer can use, and it can also write data to writable formats like CD-R, CD-RW, DVD-R, or DVD-RW. This makes it the only option among common devices that handles both reading and writing on optical discs. The other choices refer to different types of hardware: memory, an audio output device, or a display adapter, none of which interact with optical discs.

The concept here is identifying the device that accesses data on optical discs. A CD/DVD drive, often called a CD/DVD writer or burner, is designed to read data from CDs and DVDs and, on writable media, to encode new data by burning or erasing layers. It uses a laser to scan the disc’s surface and convert the pits and lands into digital information the computer can use, and it can also write data to writable formats like CD-R, CD-RW, DVD-R, or DVD-RW. This makes it the only option among common devices that handles both reading and writing on optical discs. The other choices refer to different types of hardware: memory, an audio output device, or a display adapter, none of which interact with optical discs.