Question about OS Memory Management

[nghlong93]

Hi everyone,

I have a problem about an exercise.

If main memory's split into 4 sections with size: 600K, 500K, 200K, 300K ( by order ), and 4 proccesses with size: 212K,
417K, 112K và 426K ( by order ). How those proccesses would be allocated to main memory if using :
a) First fit
b) Best fit
c) Worst fit
Which is the most effective in using memory?

 

I've found 2 answers for this. One with external fragmentation, another with internal fragmentation.

I can't make up my mind. Which is the correct answer?

Please help me.

Thank you.

[nahidd]

This is a good topic. Everybody should benifited from this.