Many computers won't be able to run Windows 11 | It's Geek to Me

Q: I just learned that Windows 11 will require a TPM module in the computer before the update can be installed. What is it and how can it be installed in a laptop? I am running an HP Pavillion 64-bit laptop that is probably at least five years old. It has 6GB of RAM and a 500GB SSD, with about 187GB free.