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.
 
 
Blow Your Competition Out Of The Water With These Search Engine Optimization Tricks
 
By increasing traffic to a blog or website, there is a good possibility that there will be a resulting increase in the sales from that source from the additional visitors. Optimizing your search engine will help to make the web site you have made more accessible. In this article you will find great advice for maximizing your optimization efforts.
 
You should make sure that the search engine optimization you choose, uses a quality and proven technique. Stuffing keywords haphazardly throughout your site won't do anything but lower your audience's confidence in your legitimacy. Consider custom-made content that is specific to your business. This will draw in the audience and encourage them to explore the rest of your website.
 
When you try to increase search engine optimization, you should make your URL something easy and understandable. It should be clear what your site is about. That way, people will known what they are clicking on when they are looking for something using a search engine and they will more likely click on your site.
 
In order to help crawlers and spiders index your web site, you should create a site map. A site map is a list of all the pages that make up your site. By creating one, web spiders will be able to discover even the most obscure and hidden pages, as well as to receive other important information. This will increase your visibility on the internet.
 
If video or audio items are shown on your website, you should have transcripts of these included. The transcripts allow your content to be easily understood by search engine robots. This will ensure your website gets a higher ranking.
 
Keep your content fresh. While having lots of content is important, it has to be up to date. A search engine will track how frequently your site is updated and this has an effect on your rank in the freshness category. Any form of change, whether it's a news article or a blog post, will help to boost your rank.
 
As much as possible, stay away from frames in your website. Search engines can't index framed pages. The best that they will be able to do is to index your home page. This means that, if the majority of your site uses frames, then the majority of your site will not be indexed.
 
If you want to avoid a three to six month period of your site being in a ranking abyss, do not make a lot of link exchanges or buy a lot of links right away. Take your time marketing your site slowly to the internet and your rank will go up much quicker.
 
If you have embedded videos on your web site, be sure to include them in your sitemap. Doing so lets the search engines know that your video content is actually part of your web site. This will help bring more traffic to your site, since viewers will be more likely to come to your site to watch your video rather than going to an external hosting site.
 
When search results are shown, it's probably the results showing on the first two pages that will see the highest traffic. The ideas you've read here will help you to build traffic and increase the profits you receive from your website or blog. Optimizing your site or blog can do a lot for your business.
 

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