FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -The header file iostream contains the definitions of the datatypes istream and ostream which are used to perform the input and output operations respectively. The operations are performed on the standard input and output device using the variables cin and cout, respectively. Therefore, the statement is TRUE.

Detailed explanation-2: -iostreams are the formatting part of a two-part (input or output) system. The other part of the system is made up of streambuf s, which deal in input or output of unformatted streams of characters. You usually use streambuf s through iostreams, so you don’t have to worry about the details of streambuf s.

Detailed explanation-3: -Input/output streams Like the cstdio header inherited from C’s stdio. h, iostream provides basic input and output services for C++ programs. iostream uses the objects cin, cout, cerr, and clog for sending data to and from the standard streams input, output, error (unbuffered), and log (buffered) respectively.

Detailed explanation-4: -Standard input and output in C++ is done through the use of streams. Streams are generic places to send or receive data. Keyboard, screen, file, network, it’s all the same after setup. It’s a stream. In C++, I/O is done through classes and functions found in <iostream>.