Help, New to AmigaOS (Kinda)

[Redfield]

Hello
I'm kinda new to using an Amiga Computer but use to play games on them @ School...
I recently got a Amiga A1200HD/040 (I presume the 040 means the CPU).

First of all
I'm Clueless

2nd
I have assembled it how it is meant to be set up but I turn it on and I get the Information about the Kickstart rom (3.00 ROM 39.106) and the Floppy Disk Animation with the Amiga Logo, btw i was not given a Manual but I can acquire any disks that are needed.

So what do I do next also
Is there anyway of Improving the performance and capability of it?

[Redfield]

Ok OS 3.1 is installed
Anything else i need to do?

[Redfield]

I recently Acquired Most of the Amiga Computers from a School i do Networking for...
The school wanted to throw them away because they saw no Value of them.

I Picked up 1x A4000
4x A1200HD
1x A500
1x CD Rom
and What apparently looks like a SCSI Hard Drive
This is also Including Monitors for each Computer.
(Commodore 1084s)

Amiga OS 3.0 and 3.1 Disks
They also handed me a Bunch of Floppy Disk cases that easily contain over 50 Disks per a Case.
I have recieved Disks that contain stuff like Octamed, Scala and Deluxe Paint.

I was hoping to explore what I could do...

Btw it has 1,801,680 Graphics Mem amd 0 Other Mem
it has HD1:? I have installed Amiga OS 3.1 (I think) under Novice Mode...

Anything else i can do?
Also Thanks for the Help...

[Redfield]

I dont think so...

[Redfield]

btw Thank you with the reply, I Formatted it and it is usable

I have known these computers to be a very good Multimedia Machine. What uses could i use them today and what upgrades could i do to them. Would an Accelerator Card help? and What Software and Operating System can make these more user Friendly. Also is it possible to run it through an LCD Monitor?

also Thanks for the Help.