Which type of storage media is made of aluminum, glass, or ceramic and coated with material that allows items to be recorded magnetically? A. A flash drive. B. A hard disk platter. C. A magnetic tape. D. A compact disc.
Answer (1)
The type of storage media that is made of aluminum, glass, or ceramic and coated with a material that allows items to be recorded magnetically is a hard disk platter. Therefore, the correct answer is B. A hard disk platter .
Hard disk platters are used in hard drives, which are common storage devices in computers. They store digital data using magnetic storage, where the surface of the platter is covered with a magnetic material. This allows data to be read and written using read/write heads that float above the spinning platter surface.
Here's how it works:
Material Composition : Hard disk platters are often made of aluminum, glass, or ceramic for durability and smoothness.
Magnetic Coating : They are coated with a magnetic material that allows data to be recorded and retrieved magnetically.
Data Storage : When data is stored, the read/write heads alter the magnetization of the coating in a way that represents binary data (0s and 1s).
Data Access : The platters spin at high speeds, and the read/write heads move across the surface to access stored data quickly.
Hard disks are crucial for storing large amounts of data efficiently and are widely used across various types of computers, both as internal and external storage accessories.
