Input/Output Devices
Input/Output devices are not only output devices but are also used as storage and input devices.  The computer transmits data to the drive, where it is saved and can be later accessed.

Examples of I/O devices are CD drives, DVD drives, USB drives, hard disk drives and floppy disk drives.

CDs and DVDs are both types of optical discs that saves data in a digital format.  Data is written on the disc, using a laser writer that embeds the data into the disc’s coating.

A floppy disk is a magnetic storage device.  A layer of magnetized material is placed within a proactive plastic casing. The computer embeds the data into the magnetized material, using a writing head.

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