FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -Typically this is the keyboard, but you can specify that input is to come from a serial port or a disk file, for example. The standard output device, also referred to as stdout, is the device to which output from the system is sent. Typically this is a display, but you can redirect output to a serial port or a file.

Detailed explanation-2: -In every C program, three basic functions take place – accepting of data as input, the processing of data, and the generation of output. The acceptance of data refers to input and the presentation of data refers to the output. The C program accepts input from the keyboard and displays output on the screen.

Detailed explanation-3: -The iostream library is an object-oriented library that provides input and output functionality using streams. A stream is an abstraction that represents a device on which input and ouput operations are performed.

Detailed explanation-4: -C Standard library functions or simply C Library functions are inbuilt functions in C programming. The prototype and data definitions of these functions are present in their respective header files. To use these functions we need to include the header file in our program.