Almost all personal computers today contain hard drives, generally with many gigabytes of storage space. Hard drives are able to store a lot of information permanently using electromagnetic surfaces to record digital data. You can write on them and rewrite on them, which is what makes them so versatile in computers. It holds records of characters in text files, pixel coloring in images, and executable programs for software. It’s what makes storing programs, music, photos, and other items possible. There are many different kinds of hard drives available, and it can be difficult to choose between them all. Here’s a breakdown of the different aspects that you should consider.
Storage space
These days, you can get a reasonably inexpensive hard drive with about 250GB, which is plenty for most people. However, paying a bit more can get you a lot more space. It depends on your needs. If you plan to install many large programs, or have large music or video collections, think about getting a hard drive with more space. You can also compare cost per gigabyte for various sizes. You’ll find that you usually pay less per gigabyte if you get a hard drive with more storage space. You don’t want to end up getting a hard drive with limited space if you plan to use it up quickly. It’s more efficient to spend a little more initially, so you don’t have to go to the trouble of upgrading later.
Motherboard specification
There are a few different types motherboard controllers that you’ll find in the standard personal computer. These give you the ability to connect your motherboard to various types of storage devices, including hard drives. Serial ATA (SATA) and Parallel ATA (PATA) interfaces are the two main types. You can look for information about connection capability in your computer manual, or by physically checking for the ports. Motherboards with SATA connections use a hard drive with SATA specifications. Likewise, those with PATA connections require a PATA hard drive. Sometimes, you’ll find that the motherboard supports both forms. In that case, you can use either a SATA or PATA hard drive, although most people choose SATA, as they tend to be less expensive and access data more quickly.
Performance
Rotations per minute (rpm) influence a hard drive’s performance, i.e. how fast the hard drive can read or write digital information. A hard drive with a higher rpm will perform better. Most old computers will be fitted with PATA hard drives, while newer ones tend to use SATA. A SATA hard drive is slightly better performance-wise, being about 5% faster than PATA. There are also SATA2 hard drives, which perform operations even faster. However, these are usually unnecessary unless you are using a demanding program like a graphic-intensive video game. If you plan to go with a SATA2 hard drive, you’ll probably have to also get new components for your computer so the format is supported. As you’d expect, the faster models are more expensive. The common SATA interface is acceptable for most computer processes.
Physical size
You’ll find several different sizes of hard drives available. 5.25” hard drives were the standard in the past. Today, most computers accept 3.5” hard drives, and notebooks have 2.5” hard drives. If you have an old computer with a 5.25” bay, you can fit a smaller hard drive using special rails. In terms of cable size, the old PATA hard drive connector cables take up more space, as they’re thicker. SATA hard drive cables are narrower, and easier to connect.
Noise level
In general, the faster the rotation speed of the hard drive, the louder it will be. Larger hard disks also tend to be noisier. All hard drives make noises, although different brands have various methods to reduce these sounds. As a result, you’ll find that some hard drives are quieter than others. You should look for notes about how it is designed to reduce these noises when you’re searching for a new hard drive. If you’d find a noisy hard drive annoying, it’s probably worth paying a little more to get a quieter one.
Warranties
Manufacturers often offer warranty periods for their products if sold by authorized businesses. It’s up to you whether you believe extra insurance is worth the extra cost. If you’re buying a hard drive from a discount store, it’s probably more important to get a warranty. If a hard drive crashes, chances are you won’t get your data back anyway. The best insurance is to back up everything on it regularly.
Thinking about these elements of hard drives can help you find the best hard drive for your purposes. Some people are happy with inexpensive small and relatively slow hard drives. Others need more space or faster processing speeds. Choosing the right hard drive for you can seem daunting, but with a little research you can get the best one for the least amount of money.

