Dedicated hosting is the most reliable and expensive option in webhosting. In shared web hosting you will be sharing server’s disk space, bandwidth and other system resources with many webmasters. Your 300 GB of hard disk space is just a part of some 5tb or 50tb space available on the servers. The rest of the space is occupied by the websites of others. Your applications shared the memory of the web server along with applications of other webmasters. Of course, the servers have bandwidth limits which your website will be sharing with many other websites. Then why do people buy shared web hosting options? Obvious reason, the costs!!! Dedicated hosting costs about 60$ to 300$ per month with which you can buy a whole years plan of expensive or premium shared hosting.
Then what does this so expensive dedicated hosting include? When they say dedicated hosting then the whole server is reserved for your website. Only your applications use the memory or CPU of the server. Or they are only running on the server. Only you website occupies the hard disk of the server. All the bandwidth of the server is reserved for your website. Obviously this option is very costly. If your website is very large and has lot of multimedia files like videos etc and requires large bandwidth, you have to consider seriously buying these plans. Dedicated hosting is reliable due to redundancy. The response of servers will be fast. You will have wide variety of technologies available to operate or use. Even if one web server is down other web server will point to your website, which is called clustered webhosts. Some of the web hosting companies provides unmetered bandwidth (no measurement of bandwidth usage) and unlimited disk space options. If you are a serious business user then I recommend you to opt for dedicated server option.