More specifically, instead of hand-coding your blog posts and frequently uploading the newest version of your page, you make posts to your blog by submitting a simple form on the Blogger web site, and the results immediately show up on your site, with your design.
Blogger was started by Pyra until in 2002 when search engine Google acquired the Blogger service from Pyra. Blogger had premium features that are now availabe for free for all Blogger users since the Google acquisition of Blogger.