DOC, DOM, SSD

- S
- Spoon
  
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posted
16 years ago

Tue, May 8, 2007 7:23 PM

Hello,

What do people have in mind when they talk about:

DOC (Disk On Chip) DOM (Disk On Module) SSD (Solid State Drive)

Are they different technologies?

A few links, for my own reference:

formatting link

I'm looking to replace a conventional hard disk drive with something that has no moving parts (and a PATA connector).

This article states: "The average cost for a competitive SSD design in the consumer market is currently about $17 per GB of storage."

formatting link

Is that true for 1 and 2 GB parts? In other words, are there $20 and $40 1-GB and 2-GB SSD units available?

Regards.

- B
- Bob Smith
  
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posted
16 years ago

Wed, May 9, 2007 5:06 AM

I use one of these CF-to-IDE adapters in my laptop....

formatting link

hth Bob

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- Hans-Bernhard Bröker
  
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posted
16 years ago

Wed, May 9, 2007 9:14 PM

That, as always, depends quite a bit on which "people" you're going to ask. If the three terms were to be force-fitted with separate meanings, those could usefully be:

DOC: a file-system in an actual chip package, i.e. in a typical chip package (DIP, LQFP, BGA, whatever), meant to be soldered in place.

DOM: like DOC, but in a standardized socket, designed to be exchangeable. Compact Flash, SD, MD, you name it.

SSD: similar to DOM, but connected exactly like an actual hard drive would be. Things like that were made for those corner cases where all mechanical drives failed to quite meet the need. They're also just about perfect to benchmark a SCSI controller with.

A USB stick would land smack in the middle between DOM and SSD, given that USB has cut itself quite a chunk out of the market for mass storage device interfaces.

Quite possibly. CompactFlash, in particular, is so similar to PATA that it doesn't really take more than a socket converter to use any CF card as a SSD.