Explanation:

Floppy Disk is the type of storage device that holds the least amount of information compared to other options such as CD ROM, Flash Drive, and Hard Disk. Here is a detailed explanation of why Floppy Disk holds the least amount of information:

1. Floppy Disk:
- Floppy Disk is a magnetic storage device that was commonly used in the past to store and transfer data.
- It consists of a thin, flexible magnetic disk enclosed in a plastic casing.
- The disk is coated with a magnetic material that can hold data in the form of magnetic charges.
- Floppy Disks come in different sizes, with the most common being the 3.5-inch and the older 5.25-inch disks.
- The storage capacity of a Floppy Disk is significantly lower compared to other storage devices.
- The most common 3.5-inch floppy disk had a storage capacity of 1.44 megabytes (MB).
- The older 5.25-inch floppy disks had even lower storage capacities ranging from 360 kilobytes (KB) to 1.2 megabytes (MB).
- Due to their small storage capacity, Floppy Disks became less popular and were eventually replaced by more advanced storage devices.

2. CD ROM:
- CD ROM (Compact Disc Read-Only Memory) is an optical storage device that uses lasers to read and store data.
- A standard CD ROM has a storage capacity of 700 megabytes (MB) to 1.4 gigabytes (GB).
- CD ROMs are commonly used for storing and distributing software, multimedia, and large files.

3. Flash Drive:
- A Flash Drive, also known as a USB drive or thumb drive, is a portable storage device that uses flash memory to store data.
- Flash drives are available in various storage capacities ranging from a few gigabytes (GB) to several terabytes (TB).
- The storage capacity of a flash drive can be as low as a few gigabytes, but it can also go up to several terabytes depending on the model.

4. Hard Disk:
- A Hard Disk Drive (HDD) is a non-volatile storage device that uses magnetic storage to store and retrieve digital data.
- Hard disks are commonly used as the primary storage device in computers and laptops.
- The storage capacity of a hard disk can range from a few gigabytes (GB) to several terabytes (TB).
- Hard disks offer a much larger storage capacity compared to floppy disks.

In summary, the Floppy Disk holds the least amount of information compared to other storage devices such as CD ROM, Flash Drive, and Hard Disk due to its small storage capacity, which is typically measured in kilobytes (KB) or megabytes (MB), whereas other storage devices have significantly larger storage capacities measured in gigabytes (GB) or terabytes (TB).