Content Management Systems CMS once cost many thousands of dollars and were usually for the large companies. They can also be mentioned in the same room with ECM (Enterprise Content Management), EWCM (Enterprise Web Content Management) and EDRM (Electronic Document Record Management).
However, today with WordPress we can provide CMS for small businesses whose owners and staff don’t have time to use FTP to down load webs pages to edit, them upload them again. (see prices)
WordPress has some 3,000 free themes (templates) plus many thousands of free plugins for such things as ecommerce, photo galleries, slide shows, interactive forms, SEO, caches, etc.
The most popular ecommerce system today is the Woocommerce plugin to wordpress. Woocommerce also has many plugins, e.g. the Australia Post postage charges calculator which adds postage at current rates to each customer order.
You can now update your website every day and always give Google fresh information.