Tag Archives: Solid State Drives

The Difference Between A SSD And A HDD

The Difference Between A SSD And A HDDWhen the magnetic hard drive (HDD) arrived on the scene, we said good bye to the old ways of data storage, three and a quarter floppy discs and even the older 5.25. Computer users could finally store more data on the one permanent drive, but this was only the beginning because as people stored more data, they then had more to lose if something went wrong. Thus the solid state hard drive followed. If you want to get technical, a Solid State Drive (SSD) is a relative of the magnetic hard disk drive (HDD), but these two devices differ greatly.

The Old Magnetic HDD

The original old magnetic hard disk drives (HDD) were invented in the 1950s only held a small amount of data but took up a good square metre of space. Of course the average computer user could not afford these devices so the privilege was reserved for government agencies and large business. Who would want a big ugly box bigger than your fridge in your house? Regardless of the cost, these storage devices could save and retrieve data faster than the usual older storage methods, therefore the demand grew. The outrageous size was a problem that would quickly disappear. Over the years magnetic hard drives became smaller in size and gained larger capacity, but still they were never the perfect device.

Along Came SSDs

Magnetic drives killed off the need for paper files, magnetic floppy discs and even compact discs, but now SSDs are doing the same to this pioneer device. The main claim to fame for the Solid State Drives is that they are in fact a solid drive and have no mechanical moving parts, based on the same technology that a USB flash drive uses. This feature alone, no moving parts, increased the speed of operation which the older moving part drives could not compete with. Again another advantage with no moving parts was that there were less parts to interrupt your secure data storage.

The Mechanical Side To SSDs And HDDs

As stated above, these two drives are completely different as one has no moving parts and the other, the HDD has many. The older magnetic disk drives use a rotating magnetic platters to store data and if one part is disabled or damaged, all of the data is compromised. This device is also fragile and cannot be dropped as the platters need to stay in place to work. The newer SSD is solid and has no mechanical moving parts. This does not always ensure that it has a longer life span as it comes with its own vulnerabilities, just not as many as the HDD.

The Cost Of New Technology

When the SSDs hit the stores it was amazing technology in high demand. The price was high. Unfortunately the price is still high if you compare it to a regular HDD, but we all know that soon SSDs will be old news, cheaper and probably the next storage device to take the lead from the HDD.