La Boina Roja

Linux, the struggles are real!


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What you need to know about the difference between 32-bit and 64-bit in Linux

The difference between 32-bit and 64-bit lays, basically, in how much RAM your processor/CPU (=brain of your computer) can handle. The more bits your CPU/processor can handle the more, quicker, efficient and accurate it will work Photobucket32-bit processors can handle up to 4 GB of RAM and 64-bit processors can handle above 4 GB to 128 GB of  RAM.

Yup, this means that in order to run a 64-bit version of CentOS you need to have at least 4 GB of Ram. Read this, if you are not sure if you can run 64-bit on your computerPhotobucket

In Linux (generally speaking), you need to run a 64-bit version of (for example) CentOS to run software/applications written for 64-bit systems. Wait, don’t give me the “like duh Photobucket” reaction yet!

The good thing about having a 64-bit environment is; you will be able to run 32-bit software/applications too Photobucket Unfortunately, it doesn’t work the other way round.

Guys, this is a very simplefied explanation. I’ve read articles regarding this subject which were so 1337, my brain exploded from just reading them Photobucket


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Which CentOS flavour to install

Always go for the latest version, which at the moment of writing is 6.3.

The earlier versions like 4 are still avalaible but they are full of bugs and security hazards, which are solved in later releases. If you are a 1337 h4x0r Photobucket and particularly enjoy headaches, by all means go for an earlier version. Why else would one want to waste hours killing bugs Photobucket Chances are, when you are on this blog you are far from being 1337 Photobucket  So stick with the latest version,  it’s the safest plus there is more active support to find online.

Then there is the bit thing to deal with, CentOS comes in a 32-bit version and 64-bit version. You can read about the differences between those versions here.

Since I’ve have it in my head had to take some Red Hat exams, I am installing the 64-bit version. According to Michael Jang you do need a 64-bit system to prepare for the exams. So 64-bit it is Photobucket