How do I find out the chip type, system name, node name, model number.

The uname command provides details about your system.

uname -p	Displays the chip type of the system. For example, PowerPC.
uname -r	Displays the release number of the operating system.
uname -s	Displays the system name. For example: AIX.
uname -n	Displays the name of the node.
uname -a	Displays the system name, node name, version, machine ID.
uname -M	Displays the system model name.
uname -v	Displays the operating system version.
uname -m	Displays the machine ID number of the hardware running the system.
uname -u	Displays the system ID number.