what is exactly 1 joule means??

hi all,

i just need better explanation of what is exactly 1 joule means??

i check wiki it says:

=B7	1 joule =3D 1 N=B7m
=B7	1 newton metre =3D 0.7375621 foot-pound force (often "foot-pound")
=B7	1 metre kilogram-force =3D 9.80665 N=B7m
=B7	1 centimetre kilogram-force =3D 98.0665 mN=B7m
=B7	1 foot-pound force (often "foot-pounds") =3D 1 pound-force foot (often
"pound-feet") =3D 1.3558179 N=B7m
=B7	1 inch ounce-force =3D 7.0615518 mN=B7m
=B7	1 dyne centimetre =3D 10-7 N=B7m

my question is when i look at laser machine says:

Benchtop laser micro-welder Laserstar Technologies
60, 80 J

and then better machine is going to be like 80j,100j,150j.

is anybody can explain better, i mean ,in a easy way to imagine how
its like.


thank you so much in advance.
always respected and appreciated on this site.
Yo****.