t.floppy disk

 Floppy Disk

A floppy disk is a portable magnetic storage device used to store and transfer data between computers.

Features

• Made of a thin magnetic disk enclosed in a plastic or hard cover.
• Stores data in the form of magnetic signals.
• Can be read, written, erased, and reused.
• Requires a floppy disk drive (FDD) to access data.
• Slower and lower in capacity than modern storage devices.

Types / Sizes

1. 8-inch floppy disk
   • Introduced in the early 1970s.
   • Large and flexible.
   • Capacity around 80 KB to 1 MB.
2. 5.25-inch floppy disk
   • Popular in the 1980s.
   • Thin and flexible.
   • Capacity commonly 360 KB or 1.2 MB.
3. 3.5-inch floppy disk
   • Popular in the 1990s.
   • Hard plastic shell for protection.
   • Capacity commonly 720 KB, 1.44 MB, or 2.88 MB.

Advantages

• Portable and easy to carry.
• Reusable.
• Cheap at the time.
• Easy for data transfer.

Disadvantages

• Very low storage capacity.
• Slow speed.
• Easily damaged by heat, dust, or magnetic fields.
• Obsolete today.

Uses

• Storing small files.
• Booting old computers.
• Software installation in older systems.
• Data transfer before USB drives and CDs.

Important MCQ points

• Storage type: Magnetic storage
• Access method: Direct/Random access
• Device needed: Floppy Disk Drive
• Most common capacity: 1.44 MB
• Most common size: 3.5 inch

What is a floppy disk?
→ A portable magnetic storage device used to store data.

Why is it called floppy disk?
→ Because early disks were thin and flexible (“floppy”).

What type of storage device is it?
→ Magnetic secondary storage device.

What are the common sizes of floppy disk?
→ 8", 5.25", and 3.5".

Which floppy disk is most commonly used?
→ 3.5-inch floppy disk.

What is the storage capacity of a 3.5-inch floppy disk?
→ Usually 1.44 MB.

What is the storage capacity of a 5.25-inch floppy disk?
→ 360 KB or 1.2 MB.

Can floppy disk be erased and reused?
→ Yes.

Which device is used to read floppy disk?
→ Floppy Disk Drive (FDD).

Is floppy disk random or sequential access?
→ Random/Direct access.

What are the disadvantages of floppy disk?
→ Low capacity, slow speed, easily damaged.

What can damage a floppy disk?
→ Dust, heat, water, and magnetic fields.

Why is floppy disk obsolete now?
→ Because USB drives, CDs, and cloud storage are faster and larger.

What material is the floppy disk made of?
→ Plastic disk coated with magnetic material.

What is the difference between floppy disk and hard disk?
→ Floppy disk is portable and low-capacity; hard disk has higher capacity and speed.