Explaining the Hard Drive and the Differences Between HDD and SSD

Most individuals who utilize computers know "of" the hard drive, but how many actually know what a hard drive does? Depending on who you ask, you’ll get a variety of answers. It’s uncommon that you’ll encounter the ordinary person who knows what the hard drive is, what it does and how it works. Allow us to explain what exactly a hard drive does.

What the Hard Drive Accomplishes
A hard drive is one of the computer’s key devices. Without the hard drive, there could be no data storage on the device; at least, not permanently. The computer’s operating system and hardware drivers will usually be installed on the hard drive, as well as any programs, data, and media. Having a big hard drive means that you’ll experience less issues with storing all of your data on it. Hard drives usually come in two different types: the standard hard disk drive (HDD), and the solid-state drive (SSD).

How Hard Drives Accomplishes Work
The details of how hard drives accomplish work varies depending on which type of drive it is. They are as listed below:

HDD: A hard disk drive utilizes numerous internal components to store data, including the disk controller, the platter, the read/write arm, and the actuator. The disk controller communicates how the data coming and going will be dispersed with the rest of the device. Guided by the controller, the actuator positions and maneuvers the read/write arm over the spinning platter. The platter is where all of the drive’s data is stored in binary code based on the platter’s magnetic polarities. These polarities are then rewritten and read according to the read/write arm.

SSD: A solid state drive runs on flash memory, not on moving parts. This means that they are less vulnerable to damages, much quieter overall, and able to function without requiring as much power. They are the favored memory device found in laptops and mobile devices. Obviously, these advantages usually come with a higher price tag, but this inconvenience has diminished somewhat in recent years.

What’s the Difference the HDD and SSD?
The biggest difference between HDD and SSD can be found in their origin stories. The HDD originated in 1956 through the ingenuity of IBM, while the SSD was first developed by SanDisk in 1991. Flash-based SSD also arose in 1995 thanks to the developers at M-Systems. Additionally, there is a significant difference in the overall longevity of each storage method, as the moving parts of the HDD make them more susceptible to a shorter lifespan.

Is HDD or SSD the Better Option?
Depending on your requirements, you’ll need to purchase one of the two types of devices. The HDD needs stability above all else, but it’s more affordable than the alternative. SSD is primarily utilized for mobile devices like laptops due to their durability. Basically, if you can afford SSD, choose that option..

Do you need more assistance understanding the significant differences between SSD and HDD? Give Macro Systems a call at 703-359-9211.