Usually by the length and thickness of the main shaft.
Larger bits require a slower (more power) speed.
The drill press was invented in the 1920s
The Drill Press is used for drilling holes in various materials.
Yes, mortising bits are made for drill press use.
They must have shanks to match the chuck that the drill press has.
A drill machine can mean a hand held electric drill, or a bench drill press or a pillar drill.
"chuck"
A pillar drill is just another term for a floor mounted drill press
Tighten the drill bit in the chuck.
It's just another name for a drill press
Drill bits are not universal. You choose the size of the drill bit according to the size of hole you like to make.
That depends on the material and the size of holes. -I can do that on a drill press with a jig.