What Is A Hard Drive?

A hard drive is an essential piece of hardware for every computer, it actual name is Hard Disk Drive (HDD), other more common names are hard disk and fixed disk. A hard drive is a non-volatile data storage device; using two rotating disks, known as platters, that have magnetic surfaces, the hard drive digitally stores encoded data. While modern day Hard drives are a completely sealed unit (aside from the ventilation hole), the original hard drives had removable media. The term “Hard” was meant to be a substitute, temporary slang, for the term “rigid” before a universal name had been agreed upon. A rigid-disk drive is a hard drive essentially, but that name is rarely used.

Hard Drives were first introduced for data storage in an accounting computer in 1956 and were developed for general purpose computers. Non-volatile storage means that unlike RAM, which is volatile memory, the information will not be deleted when the computer is powered off. The hard drive is where firmware and program files, along with other types of information, are stored so it can be accessed at any time.

The data is stored in the computer language known as binary code; information is recorded as a series of zeros and ones and is retrieved by detecting the magnetized material. Covered in a thin layer of magnetic material, the platters themselves are non-magnetic usually made of aluminum or glass. Earlier hard drives used iron oxide for the magnetic material, but now a cobalt-based alloy is used.

A typical hard drive for a desktop computer holds somewhere between 120 and 500 GB of digital data, rotate at 7200 RPM (Rotations Per Minute) and transfers 1 Gbit per second. As of July 2008 the largest capacity of a hard drive became 1.5 TB, with an RPM of 10 thousand or 15 thousand and has a transfer rate of 1.6 Gbit per second. Hard drives with RPMs of at least 10 thousand are the gamers’ choice for their computers because of the high data transfer rate, which cuts down on the game start up time and decreases game loading time.

Modern day hard drives cover a variety of digital applications, such as video recorders, audio players, personal assistants, cameras and video games consoles. Samsung and Nokia added hard drives to their phones for the first time in 2005 and revolutionized the market. The size of the hard drive stays the same, but the amount of data that can be stored upon them is ever increasing because of data compression research. The original hard disk drive held 4.4 megabytes (MB) of digital data as compared to the newest hard drive today that can hold up to the 3 terabytes (TB) of digital data. (1 thousand bytes = 1 MB; 1 thousand MB = 1 gigabyte (GB); 1 thousand GB = 1 TB) The 3 TB hard drives are not yet available for public purchase but the 2 TB external hard drives are, and they sell for a minimum of $ 454.

Victor Epand is an expert consultant for computer memory, PC supplies, and computer games. When shopping, we recommend the best online stores for PC supplies, Hard Drives, computer memory, RAM, and used computer games.
Become a Pro Blogger with these Tips
Creating a blog can seem overwhelming because there are so many option, possibilities and choices to make. The potential and ideas for blogs are infinite. The tips in this article are designed to help you to create a blog that will accomplish your goals and will reach the audience that your blog was created for.
Post original content on your blog, and include pictures or other content. Linking out to relevant sites, quoting experts in a field or adding videos can also make a post more interesting. Make sure you don't plagiarize, though, because people will stop visiting your site. Be unique and interesting with posts!
If possible, have someone else go over your blog posts before you post them. This is especially critical for internet marketing posts. People have a tendency to be blind to their own errors, so they will often miss problems with grammar, spelling, sequence, or logic. Another person may also be able to provide information you have left out or correct errors of fact.
When blogging, you should make sure that you make your RSS feed as obvious as possible. You can not expect other readers to find it if it blends in with all the text in your blog. This is why you should put it in a prominent position on your blog, and try to make use of the orange RSS icon if possible.
If you are going to blog, you need to make sure you choose a niche or market that you are passionate about. There are plenty of blogs out there, and there are just as many topics to choose from. Stay specific, and choose a blogging subject that you can create a successful blog with.
Break your blog up into appropriate headings and subheadings. This serves to make the material more palatable. Readers' have a tendency to scan the page for key concepts before they begin to read the entire blog. Headings and subheadings will help them get what they are looking for and ensure they stay on your page long enough to read the entire blog.
Try breaking your posts into manageable pieces. This is a very easy, but unfortunately ignored blogging tactic. Do not write like you are trying to run a marathon. Break up your posts in smaller pieces. This can help boost your SEO, and it can help create a clearer writing approach. This can actually help you think better.
Learn everything you can about topics related to your blog. The more quality information you can share, the better your blog will be. The greater your knowledge, the more readers will view you as an expert in the field. This will make the reader more likely to share links to your blog with their contacts.
Do not start a blog entry unless you are sure that you can sit down and finish the entire thing. You want to let your mind stay on task, and if you have to stop for any reason, it will be very hard to pick up where you left off.
You may want to have contests or giveaways on your site. This helps readers to become a part of your blog and increases their excitement about visiting. Readers are also likely to send links to contacts interested in the content of your contest. The giveaway can vary, depending on your site.
Make friends with other blogs that relate to your target niche. You can post useful comments on these blogs, and this will help promote your own blogging as well. Besides providing comments, some blogs will allow you to make guest posts, as this can be mutually beneficial to both of you.
The more blogs you write, the more ways potential readers have of finding you via search engines. The more people that successfully make their way to your site, the more visitors you will have actually reading your content. Use this guidance and watch your visitor numbers grow.
As you probably already know, creating a blog can be overwhelming at first, because the possibilities and potential for blogs are endless. The tips and techniques from the above article were gathered to help you create a blog that will get your message across to the audience that you are seeking to reach.

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