A stream is associated with an external file (which may be a physical device) by opening a file, which may involve creating a new file. The file position indicator is maintained by subsequent reads, writes and positioning requests, to facilitate an orderly progression through the file. …

What is standard input and output?

The standard input device, also referred to as stdin , is the device from which input to the system is taken. The standard output device, also referred to as stdout , is the device to which output from the system is sent. …

What are the standard I O streams?

In computer programming, standard streams are interconnected input and output communication channels between a computer program and its environment when it begins execution. The three input/output (I/O) connections are called standard input (stdin), standard output (stdout) and standard error (stderr).