I/O devices

I/O devices

1. block devices

   • Is the one that stores information in fixed-size blocks, each one with its own address.
   • The essential property of a block device is that it is possible to read or write each block independently of all the other ones.

2. character devices

   • It delivers or accepts a stream of characters, without regard to any block structure. It is not addressable and does not have any seek operation.