Why no firmware installed in every hard disk as anti-virus ?

In my opinion every hard disk manufacturer should think the possibility of installing some good anti-virus firmware to eleminate the viruses when using this HDD. We can updated this software by visiting the manufacturer's site. Why no one thinks over this idea ?

Why no firmware installed in every hard disk as anti-virus ?computer protection

But how do you tell a virus from a legitimate program? And how do you update it easily and automatically?

And how would it know which operating system is installed on it, and what type of CPU? Mac virus won't work on Windows, Windows virus won't work on Linux, and so on. And this won't stop Word worms and such.

Why no firmware installed in every hard disk as anti-virus ?free antivirus download

how old is your computer? modern computers do have HDD anti virus protection did you not know? they protect the boot sector from viruses

The hard drive just holds the virus data most viruses cause problems in windows programs, not the hard drives,
well.... if ur planning 2 spend thousands on a HDD why not?
Because the only way a virus software can tell that a virus is a virus, is if it has the definitions for that virus. Think of it as kind of a mugshot of the virus. If the virus has not been caught before(detected, decoded and had an effective removal process created for it), the antivirus will not know its a virus.

The reason why that is an issue, is that the firmware of the drive controls the basics of how it operates, constantly updating the firmware brings possiblities of the firmware being corrupted by say a power surge mid-update.

Not only that, but it would require a decent amount of flash memory on the drive to contain the software and definitions. Though I guess flash memory is cheap enough and small enough to justify it.