A web hosting service is a type of Internet hosting service that allows individuals and organizations to make their own website accessible via the World Wide Web. Web hosts are companies that provide space on a server they own or lease for use by their clients as well as providing Internet connectivity, typically in a data center.
Cloud hosting is based on the most innovative Cloud computing technologies that allow unlimited number of machines to act as one system. Other hosting solutions (shared or dedicated) depend on one machine only, while cloud hosting security is guaranteed by many servers. The cloud technology allows easy integration of extra resources, such as space or RAM and thus enables website growth.
Disk space refers the amount of data storage that an account has. This indicates the amount of disk space that will be available to you on the server to hold your web site files.