A. Punched card
B. Magnetic disk
C. Magnetic tape
D. Drum
Check Answer
The correct answer is D) Drum.
A magnetic storage device on which data is stored on a cylindrical drum, subdivided into tracks, is known as a drum. The drum was one of the earliest magnetic storage devices and was widely used in the 1950s and 1960s for data storage and processing.
Option A (Punched card) is a type of data storage medium that uses cards with holes punched in them to represent data.
Option B (Magnetic disk) is a magnetic storage device that uses spinning disks to store data. Magnetic disks are used in hard disk drives and floppy disk drives.
Option C (Magnetic tape) is a long, narrow strip of plastic or other material coated with a magnetic material on which data can be stored. Magnetic tape is commonly used for data backup and archival storage.
Therefore, options A (Punched card), B (Magnetic disk), and C (Magnetic tape) are incorrect.
A magnetic storage device on which data is stored on a cylindrical drum, subdivided into tracks, is known as a drum. The drum was one of the earliest magnetic storage devices and was widely used in the 1950s and 1960s for data storage and processing.
Option A (Punched card) is a type of data storage medium that uses cards with holes punched in them to represent data.
Option B (Magnetic disk) is a magnetic storage device that uses spinning disks to store data. Magnetic disks are used in hard disk drives and floppy disk drives.
Option C (Magnetic tape) is a long, narrow strip of plastic or other material coated with a magnetic material on which data can be stored. Magnetic tape is commonly used for data backup and archival storage.
Therefore, options A (Punched card), B (Magnetic disk), and C (Magnetic tape) are incorrect.
