I have many collection of computer backgrounds, such as this one, an animated picture of old typewriter machine. This picture is the computer backgrounds 1 of 18 free computer backgrounds from Digital Ocean. I got this picture from Digital Ocean's IMGUR account. This picture is a free license, so you can download and share as you like.
About Digital Ocean
Digital Ocean is an American cloud infrastructure that provides virtual servers for software developers. On January 15, 2013, DigitalOcean became one of the first cloud hosting companies to offer SSD-based virtual machines. To get more details about Digital Ocean, you can visit here.
18 Computer Backgrounds
I have 18 similar computer backgrounds on this site, feel free to download all of them on below gallery:
Free Computer Backgrounds 1 of 18 - Old Typewriter Machine