What are the disadvantages of a magnetic disk?
Table of Contents
What are the disadvantages of a magnetic disk?
Disadvantages of a magnetic disk:
- Expensive than magnetic tapes.
- It must be stored in a dust-free environment in order to protect them from crashing down.
- This disk was more susceptible to breach of security and access gain to sensitive online disk files from remote terminals.
How does a magnetic disk work?
A magnetic disk drive consists of a number of platters (disks) coated in a magnetic material. They spin at around 7200 rpm . The data is encoded into bits and written onto the surface as a series of changes in the direction of the magnetisation. The data is read by detecting the changes in direction.
How is a hard disk divided?
The surfaces are usually divided into concentric rings, called tracks, and these in turn are divided into sectors. This division is used to specify locations on the hard disk and to allocate disk space to files. Typically, a sector will hold 512 bytes of data.
Why is magnetic storage cheap?
The data is stored in this magnetic material. Thus, the hard disk is known as a magnetic storage device. Hard disks hold a vast amount of data and are relatively cheap, so on a per-byte basis they are the amongst the cheapest form of storage, although magnetic tape is cheaper.
Which of the following is not an advantage of magnetic disk storage?
Discussion Forum
| Que. | Which of the following is not an advantage of magnetic disk storage? |
|---|---|
| b. | Disk storage is less expensive than tape storage |
| c. | Disk storage is longer lasting than magnetic tape |
| d. | None of the above |
| Answer:None of the above |
What is storage capacity of magnetic disk depends on?
Discussion Forum
| Que. | Storage capacity of magnetic disk depends on |
|---|---|
| b. | Bits per inch of tracks |
| c. | Disk pack in disk surface |
| d. | All of the above |
| Answer:All of the above |
How many sectors are there in one disc?
In 2010 IDEMA completed the Advanced Format standard for 4096 sector drives, setting the date for the transition from 512 to 4096 byte sectors as January 2011 for all manufacturers, and Advanced Format drives soon became prevalent.
Is Hard Disk an ICT?
The hard disk is the main storage device in your computer. It is a bit like a filing cabinet: all of your data files and applications software are stored on it. The data is stored in this magnetic material. Thus, the hard disk is known as a magnetic storage device.