Question

A CD ROM is ______________ in shape??​

Answer 1

Answer:

The most common size of CD-ROM is 120 mm in diameter, though the smaller Mini CD standard with an 80 mm diameter, as well as shaped compact discs in numerous non-standard sizes and molds (e.g., business card-sized media), are also available. Data is stored on the disc as a series of microscopic indentations

Answer 2

Answer:

Hard disk .............