It relates to computer communication technology. The memory arrays are comprised of non-volatile memory cells that have readwrite speeds and charge retention times that are different from the other memory arrays of the system. Crohn’s disease, on the other hand, can involve the mucosa of the small andor large intestine and may involve deeper layers of the bowel wall. The second instrument is advanced into the body of the patient such that a portion of the second instrument extends out of the body. R2 represents a single bond or a divalent linear, branched or cyclic, saturated or unsaturated hydrocarbon group having 1-20 carbon atoms. The controller may control the drive unit to change a focal distance of the zoom lens unit to enlarge or reduce an image.