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Simply, My PC is Crap, it has Pentium 4 3GHz 2MB Cache CPU with Intel graphics G31/G33 and 1GB RAM

on normal work, such as using firefox, the CPU use is more than 50%, and if i opened more than 5 tabs, it might lag because of the CPU

is this normal? its quite annoying

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You have very little RAM for Ubuntu. Ubuntu needs around 2GB to be "lag free" because it caches a lot of data, and needs more memory to run smoothly than Windows. –  Alvar Jul 30 '13 at 11:45
    
did you install Ubuntu 64-bit with that low amount of RAM? I would upgrade the RAM to around 4GB or install Lubuntu. –  Alvar Jul 30 '13 at 11:49
    
If you just want to learn C. Install a server version and start coding, you will get much more speed out of the computer without a GUI. Or upgrade the RAM. –  Alvar Jul 30 '13 at 11:56

1 Answer 1

up vote 2 down vote accepted

The main reason for installing a lightweight version of Ubuntu such as Xubuntu or Lubuntu is to get better performance. If you want to get better performance, you should try using a lightweight *buntu version, even if your hardware will support Ubuntu and Unity.

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