Is 640 GB a lot

Answer 1

Depending on your needs, it may be more than enough, adequate, or too small. It is by no means an exceptionally large capacity; even larger drive can be had for less than $100, and drives up to 1.5 TB are available commercially.

Answer 2

Say the operating system takes up 20gb.
300gb left.

That leaves room for:

20,000 high-quality JPEGs (pictures)
---or---
75 complete DVDs
---or---
37,000 high-quality, 5 minute, MP3 songs
---or---
20 installations of WoW (it's a really big game)
---or---
900 good-quality, 10 minute, AVIs (video)
---or---
8,000 YouTube videos (pretty low quality usually, max 10 minutes most are less than 5)
---or---
1,000+ programs + data (hard to say)
---or---
100+ computer games (again, hard to say)

Answer 3

I would think so because my computer only has 74 GB , and my laptop carries somewhere about 120-170 GB.

Answer 4

640 Gb is quite a lot for a domestic computer, but many office systems would hold much more data than that.

Answer 5

This hard drive is 320 GB.