What is iostream in simple words ?

Answer 1

input like cin >> variable; which store something to variable.
output like cout << something;which output somethings on the screen.

Answer 2

istream
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\
iostream
/
/
ostream

Answer 3

An input stream takes an input from somewhere - the console, a file, a variable etc - and copies it into the memory, for example a variable in your program.

An output stream does the opposite. It takes a value from your program and writes it on the console, in a file, in another variable etc

Answer 4

input / output stream

Answer 5

thank you for your effort since I am a newbie can you ellaborate what is input/output stream