Want to know more about standard Java I/O concepts like standard input, standard output, and standard error? Read on!

The program for the music app stored in the memory will tell the processor to turn the input into sound output through headphones or a speaker.

For anyone who’s seen a 1970’s era microcomputer like the Altair 8800 doing its thing, you’ll know the centerpiece of these behemoths is the array of LEDs and toggle switches used as input ...