Question

Fill in the blanks.
1. The concentric circles in which data is recorded in a hard disk are known as_ _ _ _ _
2. A_ _ _ _ writes or reads the information on the tracks in a hard disk
3. _ _ _ _ gets its name from the blue-violet colour of the laser beam use with it. ​

Answer 1

Answer:

brainliest please please please please please please please please please please please please

Answer 2

Answer:

1. Tracks

2. Drive Head

3. Blu-ray Disk

Explanation:

1. Answer: Tracks

It is the "physical division" of the data. Tracks are further divided into blocks. A 3 ½ inch hard disk contains thousands of Track.

2.  Answer: Drive head

It is also called RW head. This is a "device" found on the hard disk to "read and write" the information  on the disk platter.  

3.  Answer: Blu-ray disk

Blu-ray uses 450 nm blue-violet laser, so this gets the name blu-ray. It has the capability of storing data ten times greater than a DVD.