This editor program that is called either be a visual web editor or just a plain text editor like Notepad that comes with Windows. Where we can create web pages and customized according to users need. We have also an option available to create website that is some web hosting sites also provide a service to design your website, you normally have to use your web browser to log into the web host's site and design and customized it directly on their site. A web host is just a company that has computers that are permanently connected to the Internet. When you put your web pages on their computers, everybody on the Internet can view them. Online site builders have their own pre-made pages designs available for your use which we can customize according to our own need. Web editor is that you can run any webpage through local web server on your own computer at all.
A content management system, usually called as "CMS" is basically just a part of software that you install on your web host's computer. That is, instead of installing the program on your own computer, you install it directly on your website and log into your website and use it to add articles, photos, or whatever to your website. CMS is used for e-commerce, news or daily updating sites.