Re: file I/O and block I/O

["Shreyansh Jain" <shrey.linux@xxxxxxxxx>]

Hi,

On 5/14/08, Sandeep K Sinha <sandeepksinha@xxxxxxxxx> wrote:
> Hi Vijay,
>
>  Block I/O is the basic mechanism for DISK access using the SCSI
>  protocol as the command set. Block I/O is fast and data can be
>  transmitted in various block sizes like 2K, 4K, 8K, 16K, 64K, 128K,
>  etc. Block I/O can be done over various transports. Parallel SCSI
>  cables, copper fiber, optical fiber and even encapsulated and
>  transmitted over IP networks.
>  Block I/O is what is used to talk to DISKS.
>  File I/O is what is used to talk to FILES.

Is Block I/O necessarily a SCSI thing? I thought 'dd' command could be
used for block I/O over devices like floppy, CDROM, and IDE device?
Am I wrong?

--
Shreyansh

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