title: What is the difference between Named Instance and Default Instance?
body: <p>I created a server which is named as <code>&lt;SystemName&gt;\SQLEXPRESS</code> and even enabled the TCP/IP protocol to let it searchable on local intranet. But the problem is, people are able to connect to the server having name <code>&lt;SystemName&gt;</code>; not <code>&lt;SystemName&gt;\SQLEXPRESS</code>. Any changes done on <code>&lt;SystemName&gt;\SQLEXPRESS</code> are easily replicated on the server having name <code>&lt;SystemName&gt;</code>. But I want to know what is the Difference between server name (i.e. system name) and systemname/sqlexpress?</p>