To enable a person or company to host a website or other web based product, a web hosting company is required. Any type of web content including websites can then be accessed by users and some of these services are free although they will have restricted facilities; however, most are paid services. There are a great many services available; you even have free hosting where you won't have to spend a single dime, this is ideal for absolute beginners. Many restrictions exist with free web hosting but that is to be expected and for some it is an ideal situation but for only a few dollars per month, a paid web hosting service is far superior.
Most people and companies start their hosting by using a shared server system which means your files are on the system with other peoples. It is usually possible to upgrade to have a dedicated server for your files once you know the service provider is reliable; there is normally an additional charge for this facility. Websites require a domain name (not necessarily supplied by the web hosting company)otherwise no-one will be able to find you; once this has been done your domain will be allocated a specific amount of space for you to store your website, etc. Web hosting also provides the facility to have your own email address unlike those supplied by Google and Yahoo for example, this means, your e-mail address is exclusive to your website. It always looks like the user is more serious about their internet presence if they have their own email and domain name, it increases credibility. The more information that is transferred from your website over the internet, the more bandwidth is used so it is important if you have a great deal of information stored to ensure you have a hosting package that will easily cater for your bandwidth usage.If you only have a small site that does not have much on it then this probably won't concern you but as soon as audio, video and hi-resolution images are incorporated, it becomes more of a concern. While it is possible to use your own home PC as a web host, this is not advised as the number of security issues involved will make it a risky proposition and it is far easier to pay another company for their web hosting service.