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Variable - Concept of programming language:
Variable: As referencing memory by its physical address is very tedious, variable names are used. A variable is a symbolic name given to a memory location. Once a variable is assigned to a memory location, the programmer can refer to that location by variable name instead of its address. Variable is the connection between a name and a value. It is composed of a name, attribute, reference and a value. Attribute means the type of value a variable can hold.
For example the following programming code in C declares variables a & b.
int a,b;
char c;
In the above declaration, a & b are the variable name, which refer to a memory location where integer values can be stored. Instead of address of the memory location, variable names a and b will be used to refer to a memory location in order to store or retriever update its value. Similarly, c is a variable name given to a memory location where a character value can be stored. Further c will be used to refer to the memory location in order to store or retrieve or update its value.
Magnetic Memory: In the above section we have seen various types of semiconductor RAMs. These high speed semiconductor storage devices (i.e. RAMs) are expensive. So we need s
I. Write an application that accomplishes the following tasks: 1. Read a text file that contains, integers, doubles, alphabet, alphanumeric, and others. The name of the input fil
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-(9/14)log2(9/14)-(5/9)log2(5/9) calculate with solution.
Disk output : You will already have decided whether to use a hard disk or floppies for storing data. An important point of disk management is to ensure a secure method of kee
History of E-mail: Internet based E-mail system was designed by a Computer engineer - Ray Tomlinson in late 1971 while working with ARPANET. Tomlinson used a file transfer pro
This is a C file. 1. The program starts by printing your name with an end sign ">". For example, "NAME >"; 2. Then, you can type in a string. If the string is not "vi xxx", you pri
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sum of first 100 integers
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