Systemd is an init system (the first process that manages/runs everything else). However it does far more than a traditional init system; arguably it’s tendrils are all over mainstream Linux now.
GLIBC is the GNU Project’s implementation of the C standard library. It is a wrapper around system calls of the kernel for application use.
To be fair, I don’t think systemd is classified as just an init system anymore. It’s a software suite that just “conveniently” happened to have an init system included.
Systemd is an init system (the first process that manages/runs everything else). However it does far more than a traditional init system; arguably it’s tendrils are all over mainstream Linux now.
GLIBC is the GNU Project’s implementation of the C standard library. It is a wrapper around system calls of the kernel for application use.
To be fair, I don’t think systemd is classified as just an init system anymore. It’s a software suite that just “conveniently” happened to have an init system included.