Today I would like to share with you sent a question from a reader who asks: "What is the difference between a hard disk and memory?" This is an excellent question and one that is often confused. To answer your question it will be a good idea to start with the basics. A hard disk is a mechanical event such as the size of a paperback book used to store information on your computer. The main components of a disk consists of plates or discs which are stackedtogether and spin at high speed. A spindle that rotates the panels. And finally, read a drive arm that travels across the disk or write.
Memory or RAM (random access memory), as it is commonly known, is a set of microchips that plugs into the sockets on a motherboard. Since RAM can be removed from the motherboard, it can easily be replaced or renewed. RAM as the hard disk stores information, so that the confusion. Now that we have aUnderstanding of what move to do the devices, Lets on the differences. A hard disk is used for long term storage and is not what we call non-volatile memory. That is, if you shut down your computer, the information is kept stored on your hard drive.
Everything in your computer by your operating system to the songs you hear, stored in your hard drive. Your computer uses RAM as temporary storage, which is also referred to as volatile data storage in RAM is removed immediatelyPower is lost. RAM and hard drives vary considerably in actual capacity. Their average is about 80-300GB hard drive. While in contrast, a typical computer has more than 512 MB - 2 GB of RAM installed. Since RAM is temporary storage, it does not require large storage capacity of your hard drive is required. Your computer can read data from RAM much faster than access could be from a hard drive. The reason is, unlike a hard drive where the drive arm across scan mustPanels for access to information, RAM has no moving parts, and data is reached almost immediately.
Let me give an example of cooperation, such as memory and hard drive. When you start an application like a word processor, the computer accesses the disk reads the data required to open the program, and loads the data into memory. Every word that you stored in RAM. I am sure you are of what happens when you half way through typing your Word document and you knowsuddenly lose power, has lost all your hard work. However, if the document was saved before the power failure occurred, the document would be written to disk. When power is restored, you are simply restart your computer, start the word processor, open your saved document and continue where you left off.
In summary, hard drives constantly loading data into memory. Data that is loaded into memory, they stay there until it is no longer needed, or start your system. BothDevices to store data, memory is limited in time, a hard disk is permanent. I hope this article was able to give you a better understanding of your two most important computer storage devices, and the differences between them.
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