(1) "Armed with a dangerous weapon". A person is considered armed with a dangerous weapon for purposes of this Article, when he or she carries on or about his or her person or is otherwise armed with a Category I, Category II, or Category III weapon.
(2) A Category I weapon is a handgun, sawed-off shotgun, sawed-off rifle, any other firearm small enough to be concealed upon the person, semiautomatic firearm, or machine gun. A Category II weapon is any other rifle, shotgun, spring gun, other firearm, stun gun or taser as defined in paragraph (a) of Section 24-1 of this Code, knife with a blade of at least 3 inches in length, dagger, dirk, switchblade knife, stiletto, axe, hatchet, or other deadly or dangerous weapon or instrument of like character. As used in this subsection (b) "semiautomatic firearm" means a repeating firearm that utilizes a portion of the energy of a firing cartridge to extract the fired cartridge case and chamber the next round and that requires a separate pull of the trigger to fire each cartridge.
(3) A Category III weapon is a bludgeon, black-jack,slungshot, sand-bag, sand-club, metal knuckles, billy, or other dangerous weapon of like character.

Sec. 33A-2. Armed violence-Elements of the offense.  
   (a) A person commits armed violence when, while armed with a dangerous weapon, he commits any felony defined by Illinois Law, except first degree murder, attempted first degree murder, intentional homicide of an unborn child, second degree murder, involuntary manslaughter, reckless homicide, predatory criminal sexual assault of a child, aggravated battery of a child as described in Section 12-4.3 or subdivision (b)(1) of Section 12-3.05, home invasion, or any offense that makes the possession or use of a dangerous weapon either an element of the base offense, an aggravated or enhanced version of the offense, or a mandatory sentencing factor that increases the sentencing range.