fork()–exec() separation indeed exists for historical reasons: https://www.bell-labs.com/usr/dmr/www/hist.html https://www.bell-labs.com/usr/dmr/www/hist.html

fork()–exec() separation indeed exists for historical reasons: https://www.bell-labs.com/usr/dmr/www/hist.html https://www.bell-labs.com/usr/dmr/www/hist.html Search for the phrase "Process control in its modern form was designed and implemented within a couple of days."