Storage

Diy-Computer-Repair can help!

Make that data storage. Comes in two types: writeable and non-writeable.

Huh?
Hard drive
Ok, consider this - you bought a program that came on a CD-ROM. this is non-writeable storage. It was written to at the software publishers factory. Done, can't add or change anything on the CD.

Writeable storage are: Hard drives, SSD (Solid State Drive), Floppies, Tapes, Flash, and Re-Writeable CD/DVDs.DVDRW

So you have a large choice of devices to save your data to. Most are reliable for a long period of time.

The most non volatile is the CD/DVD. I have some CD's that were created in 1993, they are still readable, the programs are next to useless but I can copy them to a hard drive and they run.

The most common device is the Hard Drive. Hard drives continue to increase in capacity and speed. My first hard drive was 5 meg, it took me almost six months to fill it up.

SSD (Solid State Drive) are now becoming almost affordable. This is special type of memory that retains the data written to it after power has been removed.

The SSD is rated at 1500 G impact resistance, that means you would have to drop your computer from over 300 feet for the drive to be damaged.

Service Life: the SSD has a 1.5+ Million hour service life. Testing shows that it would take that long before the first failure. That is around 72 years...

There are three drawbacks to the SSD:

  • Write speed: (this has to do with the interface - IDE or SATA because the read speed is quite fast).
  • Size: Current affordable storage space is still over $2 per GB, a 60 GB SSD will cost you over $120 for a high quality SSD.
  • Cost: SSD's cost close to $2 per GB, you can buy a 1 TB mechanical drive for the cost of a 64 GB SSD, if you can get away with a smaller drive in your computer you gain a few important benifits.

If you can afford it then a great replacement or upgrade for your computer desktop or laptop would be a SSD.

You will find more information on Storage in the Self Computer Repair Unleashed! E-Book.

Next most common is the Floppy drive, the floppy is almost (not quite) obsolete because the Flash memory drive is taking its place. As a matter of fact some manufactures are not installing floppy drives in new systems, you get a CD/DVD rom drive to install software from, if you want a floppy drive you have to purchase it separately and normally it is a USB device.

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CD/DVD Rom Drives, these devices have increased in capacity since they were introduced and will continue to increase in capacity as the technology evolves. You can get a read only drive or you can get a read/write drive and make your own CD/DVD's.

Coming up fast is the Flash memory device, also know as pen drives, flash drives, etc. These are very compact and high capacity devices. Very convenient (in a way a security risk) they have a chip that allows the data written to ram and be retained with out power.

Tape devices are still around, although they are not as popular as flash devices, they offer long term high capacity storage. Tapes are good for about four years, the company I worked for had a requirement to retain tapes for 11 years, I had to check those tapes every year, if a tape is not stored properly it will degrade.

Links:

Ontrack Data Recovery Software
Data Recovery Do-it-yourself Software


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Q and A

This site contains a lot of information. As with any publication not all information is available due to space, time, or subject constraints.

If you have a question that you did not find the answer on this web site  you a can ask your question here and we will endeavor to get you the most up to date answer possible!


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