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

Manufacturer Name Model Web Capacity
NEC Corporation CD-ROM READER CDR-3001B http://support.necam.com/optical/downloads/
Panasonic DVD/CD Player DVD-RP639-S http://www.panasonic.com.cn/products/dvd/t...vd/table_02.jsp
Sony Corporation SPEAKER SYSTEM SRS-P5
Maxtor 31536H2 WWW.MAXTOR.COM 15.3G
Maxtor 90650u2 6G
Seagate ST36531A www.seagate.com 6G
WDC AC26400R www.wdc.com 6G
Seagate ST3491A www.seagate.com 428.1MB
IBM DAQA-32160 E182115 www.ibm.com 2.1GB
Maxtor 71626AP WWW.MAXTOR.COM 1.6GB
Fujitsu MPC3043AT www.Fujitsu.com 4GB
D3A Mainboard Celerron 633 CPU, 128 MB RAM
TCL Mainboard PIII 733 CPU, 256 MB RAM
Star ADSL MODEM 2110EH
Netcore 5 port exchange 3205NS http://www.netcoretec.com/

I can't manage the computers and parts

Does this sheet ok?
Manufacturer Name Model Web Capacity

Where can I find reference 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.