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in A nutshell, Hard Disk is used to Store Data, The Data gets written and once saved even if power goes off it will remain on the Hard Disk. (All your Documents, Files, music etc.) The Problem with the hard Disk is that its Way too slow in Reading a writing to acomodate a Operating Systems Fuction. Thik about waiting an hour or so for windows to boot, and feeling as if you were in the slowes computer ever. This is where RAM (Random Access Memory) comes in. Now RAM is very very fast in accessing Data, and while the data is loaded in RAM working on that data is a breeze. So when your Computer Boots its actually loading the Operation System onto RAM from your hard Disk and that's what you are working on, Same with any application, it loads onto RAM and that's how it works seamless without LAG ( most of the time :) ). Once you decide to save a file it then gets written onto the hard Disk again. Now Everything in RAM will be lost once the power goes off unless it was Saved.

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11y ago

In a nutshell, hard disk is used to store data, The data gets written and once saved even if power goes off it will remain on the hard disk. (All your documents, files, music etc.) The problem with the hard disk is that its way too slow in reading a writing to acomodate a operating systems function. Think about waiting an hour or so for windows to boot, and feeling as if you were in the slowest computer ever. This is where RAM (Random Access Memory) comes in. Now RAM is very very fast in accessing data, and while the data is loaded in RAM working on that data is a breeze. So when your computer boots its actually loading the operation system onto RAM from your hard disk and thats what you are working on, same with any application, it loads onto RAM and thats how it works seamless without LAG ( most of the time). Once you decide to save a file it then gets written onto the hard disk again. Now everything in RAM will be lost once the power goes off unless it was saved.

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Q: Differences between hard disk and ram?
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What are the differences between RAM ROM and hard drive?

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What is R A M in coumputer science?

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How can you improve your PC with a RAM of 190 MB?

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