Answer: Option B
An output device is a peripheral device used to display or print processed data from a computer. The output can be in the form of text, graphics, images, or sound.
Drum printers are one of the earliest types of computer printers and were widely used in the 1960s and 1970s. They consist of a metal or plastic drum with characters engraved on the surface. The drum is rotated at high speed, and the characters are struck by a print hammer to produce an impression on the paper.
Here are some characteristics of drum printers:

• High speed: Drum printers are capable of printing at high speeds and can produce several hundred lines per minute.
• High-quality text: Drum printers are capable of producing high-quality text with good contrast and sharpness.
• Noisy: Drum printers are relatively noisy compared to other types of printers. The print hammer strikes the paper with considerable force, producing a loud noise.
• Limited graphics capability: Drum printers are not suitable for printing graphics or images. They are primarily used for printing text.

In summary, drum printers are an example of output devices used to produce printed output from a computer. They are fast and capable of producing high-quality text but are noisy and not suitable for printing graphics or images. Other examples of output devices include printers, displays, speakers, and projectors.