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When creating an application, you will provide these pieces of information to the computer, the computer then puts them together. If or when the application is not used anymore, which means that if the user “closes” the application, the part of memory that the application was using in the RAM is gone and the memory space that the application was using becomes available (we always hope things go that smooth).Īs an application developer, you will decide what types of information are necessary for your application and how these things would be used. Strictly stated, when the user “opens” or launches a program, part of the program “goes” into the This means that the RAM looses its Information when the computer is turned off. This storage area keeps its information only when the computer is turned on. Another type of storage used by the computer is referred to as Random Access Memory (RAM). The hard drive is a static storage area that keeps its information all the time, almost regardless of what happens to your computer. Presents to the user, the computer uses two types of storage spaces. To process the information of your program or the requests that your program

Regardless of what information the user is using, the things used or needed by your program are stored or will be stored in the computer. When interacting with the computer, the user will enter information mainly using the keyboard and/or the mouse. Information that is already in the computer will come from various sources some of that is from the pieces of hardware that compose the user’s machine, some of that is from the computer (the operating system and other applications that are running on the same computer), and some will have been created by you as part of your application. During this interaction, the user will deal with two categories of information: information that is already in the computer and information supplied by the user.

Your programs will mainly allow the user of your application to interact with the computer. C++ Tutorial - Lesson 2: Variables and Data Types