two things

[EAF]

1. Can someone teach me how to run install Ubuntu onto a external HDD without having to format it?
Or install it on a 'virtual machine' <-- Don't know what that is.
2. Will all RAM sticks work in my computer?

 

[Inxy]

There's ranges of RAM. DDR3, DDR2, 1333MHZ, 1600MHZ. It depends if your motherboard and CPU can support it.

 

[EAF]

There's ranges of RAM. DDR3, DDR2, 1333MHZ, 1600MHZ. It depends if your motherboard and CPU can support it.

Oh, well I was looking on Newegg and I saw a deal for 40$ for 2x 2gig sticks, and, If I get on that computer, is there a way you can tell me whether or not I can support it?

 

[Inxy]

There's ranges of RAM. DDR3, DDR2, 1333MHZ, 1600MHZ. It depends if your motherboard and CPU can support it.

Oh, well I was looking on Newegg and I saw a deal for 40$ for 2x 2gig sticks, and, If I get on that computer, is there a way you can tell me whether or not I can support it?

Open your computer case. Remove your current RAM stick. Look at specs and post it here.

 

[x04a]

Regarding question 1) Make a partition in your external HDD and install ubuntu there.