The first peripherals
The first printer
The first computer, Difference Engine, developed since 1822 and presented in 1834, was already able to print the results of its calculations on paper.
But the first high-speed printer was developed in 1953 by Remington-Rand (and sold in 1954) for use on the Univac computer (the first mass produced computer). It was capable of printing 600 lines per minute (at 130 characters per line).
Originally, the Univac computer came with the UNIPRINTER, which resembled an overgrown typewriter (it was a modified Remington typewriter) with an attached tape drive and read metal UNIVAC magnetic tape typing the data at 10 characters per second.
References and useful resources: