Have a look at IBM's documentation on "IBM Lotus Foundations Start" - it claims all of this is true, and if you BYOS (bring your own server) with these astoundingly minimal minimum requirements:
- x86-based system
- At least one hard disk (removable hard disk required to use all of the features)
- At least one Network Interface Card (NIC) (two NICs required to use all of the features)
- CD-ROM drive
- VGA-based video card
- At least 1 GB of RAM
- Monitor
- Keyboard