apt-get

[martin hooper]

I notice that when I use apt-get to install software on Ubuntu it takes 
two passes to actually install.

ie Unpacking all the debs first then the setting up phase.

I was wondering if apt-get cannot be re-written to do both phases after 
each other for each package??  It would be much quicker I guess to do it 
that way rather than the way it is now.

I'm not a programmer just wondering if there was a reason for doing the 
original way.