I have 4 computers, ADSL, network adapters, some parts

I can't manage the computers and parts

Number Categary Serial Number Model Type Capacity MAC: Web UserName Password Owner Location
1 CD/DVD CDR-3001B
2 CD/DVD DVD-RP639-S
3 SPEAKER SYSTEM SRS-P5
4 Hard Drives 31536H2
5 Hard Drives 90650u2
6 Hard Drives ST36531A
7 Hard Drives AC26400R
8 Hard Drives ST3491A
9 Hard Drives DAQA-32160
10 Hard Drives 71626AP
11 Hard Drives MPC3043AT
12 Motherboard
13 Modem 2110EH
14 Exchange 3205NS
15 CD/DVD
16 Hard Drives
17 CPU(s)
18 OS
19 RAM 247 MB
20 BIOS AWARD Modular BIOS v6.00PG
21 Video Card(s)
22 Sound Card(s)
23 Network Card(s) Realtek RTL8139(A) PCI Fast Ethernet Adapter
24 Floppy Drives
25 Motherboard

Does this table ok?

Where can I find reference, categaries for each computer and parts to sort them?

Are there any free software to download?

All computers and parts will be record.

I can make a network?

I think I'd better record all parts.

Go to Google and type in all the questions you want to.You will be answered duly.