<p>A pre-built computer is a computer that is sold without the need for assembly. This is different from building your own PC by buying each part and assembling it yourself. Pre-built computers have merits and demerits.</p>
<p><strong>Advantages:</strong></p>
<ul><li>Comes assembled</li><li>Can be used immediately</li></ul>
<p><strong>Disadvantages:</strong></p>
<ul><li>May not be worth the price</li><li>Most pre-built computers use cheap parts</li></ul>
<p>Basically, if you use a computer for more than just watching videos or browsing the web, you should build a PC or get someone to build it for you.</p>