What is a domain and why should I register one

Its the first part of the address after www. that you enter into a web browser (e.g. hostmasters.co.ke) to find a web page on the internet. It is also the last part after the @ sign in an email address. (e.g. info@hostmasters.co.ke). Domains are useful for business and personal use, for having your personal website, business online shop – e-commerce and company email address.