Why no iostream h?

iostream is a header file which is used for input/output in the C++ programming language. The name stands for Input/Output Stream. In C++ and its predecessor, the C programming language, there is no directly-included method for streaming data input or output. Instead, these are combined as a library. iostream handles basic input and output for C++, whereas stdio.h is used in C. iostream uses the objects cin, cout, and cerr for sending data to and from the standard streams input, output, and error respectively.