When developers produce computer applications web-based and desktop, data types applied and should be recommended properly, to guarantee the consequence of the capabilities of the application form is an error and appropriate free.
For example, in the Java programming language, the “int” type represents the set of 32-bit integers ranging in value from -2,147,483,648 to 2,147,483,647, as well as the operations that can be performed on integers, such as addition, subtraction, and multiplication. Colors, on the other hand, are represented by three bytes denoting the amounts each of red, green, and blue, and one string representing that color’s name; allowable operations include addition and subtraction, but not multiplication.
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The hard disk was invented on September 13, 1956 by IBM team led by Rey Johnson (considered as “father” of the disk drive). Earlier hard disk drives were large and cumbersome devices.