What is disk space (Storage) and bandwidth in hosting?
Disk space(Storage) is the size of total data you can store on your web hosting server general counted in GB. It includes HTML files, website pages, database, videos, Images etc.
Bandwidth is the amount of data you are allowed to transfer to and from your web server per month generally counted in GB. Transfer includes uploading the data in server and downloading from servers from each mode both HTTP and FTP.
Bandwidth would increase if web page size, the number of visitors to your website and the number of pages they visit are high. Hence the website with videos, heavy images needs a Web hosting with high transfer and high storage.
Similarly , the websites with heave traffic should also opt for unlimited bandwidth type of Web hosting and higher storage web hosting.