Almost all computer users know the term Memory and Disk Space, but many of them mistakenly interpret these two terms, many of them interpreted as a long-term memory and short-term memory.

Memory or RAM stands for Random Access Memory and is known as volatile or temporary memory types. This can be used to store new information, just like you when trying to remember something for a minute.
On the computer, this is biasda happens when you save the document before closing it. When you save a document, its contents are transferred from RAM (temporary memory of the computer) into the hard disk (long-term memory of the computer). If this process is disrupted by power failure, cancellation by the user, or some other things, the contents of this document are “missing”. This is similar to what happened when we were sorting important, keeping valuable information from our short-term to long-term memories.

Disk Space is a space on your hard drive, where the applications you use on your computer is stored. When you open or run the program, this program will take from the disk into your computer RAM, and the program instructions and then run from RAM. Computers can only process the instructions in RAM. Therefore, for each program to be executed, must first be loaded from the disk into your computer’s memory. RAM is also used when we create documents and pictures or other files.

RAM is volatile memory, would “wipe out” when we turn off the computer or if there is a power failure. If the information is “erased” in RAM, this is not saved and the computer does not have a record of the existence of such information ..

Every time you type a new document, whatever you type at first stored in RAM. But, since RAM is volatile or temporary, if you want to keep what you’ve typed, you need to save your document. When you remove the Save command in your application, the information you have that type of RAM will be transferred to the hard drive and stored in a file.

As you can see, the memory (or RAM) and disk space related. They depend on each other for your computer to operate properly. When you use a computer, application and transfer of data from disk to RAM when needed. This data is then manipulated in RAM. The contents of the RAM should be kept back any changes back to the hard disk. If not, anything in RAM is not saved will be lost.

Data or files on a disk can be deleted, too. When a user “delete” a file, whether it is operating system files or files from your favorite application programs such as MS Word, iTunes, or a graphics program used to edit images, files are not really erased. Instead, your computer simply marks the space available and the program or remove material that is inaccessible to users.

When the computer needs the space program or document removed once claimed, then the space is replaced with the new information. However, if the files deleted the old space is never needed by the computer, the material remains on the hard drive. This realization has given birth to a forensic computer science as the material is obtained if you have the proper equipment and be able to access the hard drive storage space with special programs aimed to retrieve deleted files.