What is Data type, variable and constant? Before we start talking about data type, variable and constant It is good to have the basic knowledge of Bits & Bytes Now, what is Bit? Bit the smallest unit of data in a computer memory. A bit has a single binary value. It is either 0 or 1 (True or False) What is Data type? When we create any variable we have to specify data type of that variable to store value in it. Data type is use to tell computer which type of data is going to be stored in memory, so the computer will allocate the space accordingly. Types of Data type: 1. int Data type int Datatype is used to store integer numbers into computer memory. int data type allocates 4 bytes in a memory to store an integer value. For example 6 . Number 6 is an integer number. Integer does not contain point. 2. float Data type float data type is used to store real numbers into computer memory. float data type allocates 8 bytes in a memory to store real number. For example 6.500000. Numbe...
Introduction to C Programming Language What is C language? C is a high-level programming language. C programming language was designed and developed by Denis Ritchie at AT&T Bell Laboratoires in 1972-73. C language is a case-sensitive language, which means num is not equal to Num , they both are different from each other. C is an easy to learn programming language. Similarities between learning English Language and C Programming Language: 1) English language: First we have to learn Alphabets in English language. C language: First we have to learn Alphabets, Digits and Special Symbols in C language. 2) English language: After learning Alphabets, we learn to create words. C language: After learning Alphabets, Digits and Special Symbols, we learn to create Variable and Constants and learn what are keywords in C language 3) English language: After creating words, we learn how to make a sentence using those words. C ...