"The Terminator is an infiltration unit, part man-part machine. Underneath it's a hyperalloy combat chassis, microprocessor controlled, fully armored, very tough. But outside it's living human tissue. Flesh, skin, hair, blood, grown for the cyborgs. - Kyle Reese
Terminator can withstand standard 20th century firearms, crash through walls intact, and survive explosions to some degree. Repeated shotgun blasts have enough force to knock it down and temporarily disable it, while heavy amounts of automatic fire are able to compromise the organic disguise layer. In the second film, the Terminator says he can run for 120 years on his existing power cell. In the finale to Terminator 2, his power source is damaged, and he is able to find an alternate source, described on the DVD commentary as heat sinks, harnessing the thermal energy from the hot surroundings. In the third film, the Terminator - an 850 series rather than the 800 series depicted in the first two films - operates on two hydrogen fuel cells and discards one of them early due to damage. It explodes shortly thereafter with enough force to produce a small mushroom cloud.
The endoskeleton is actuated by a powerful network of hydraulic servomechanisms, making Terminators superhumanly strong. For instance, in the third movie, Schwarzenegger's character was able to handle firing a Browning .30 machine gun from the hip with one hand, while holding a coffin containing an alive John Connor and a heavy cache of weapons, showing no signs of the extra weight being any real concern.
Late in the first film, the Terminator is stripped of its organic elements by fire. What remains is the machine itself, in James Cameron's own words "a chrome skeleton, like death rendered in steel."[5] In the later Terminator films, armies of endoskeleton-only Terminators are seen. They are visually identical to the one in the first film, and feature prominently in the "future war" sequences of those films.
[edit] CPU
The Terminator CPU is a room-temperature superconducting artificial neural network with the ability to learn.[6] In Terminator 2, The Terminator states that "the more contact [he] has with humans, the more [he] learns." In the Special Edition, he says that Skynet "presets the switch to 'read-only' when [Terminators] are sent out alone", to prevent them from "thinking too much". Sarah and John activate his learning ability, after which he becomes more curious and begins trying to understand and imitate human behavior. This leads to his use of the catch phrase "Hasta la vista, baby." A line spoken by the Terminator at the end of the movie shows that Terminators have the potential to understand emotion: "I know now why you cry, but it is something I can never do." Sarah muses in the closing narration that the Terminator had "learned the value of human life". This emotion was so strong he was even able to defy John Connor's orders, thus defying his programming, for the greater good.
http://en.wikipedia.org/wiki/Terminator_%28character%29Residing within the Black Pyramid amid the ruins of what appears to be an ancient Egyptian civilization, Mumm-Ra exists in a decayed, weakened form that must return to a stone sarcophagus to replenish his energy. He can summon the power to transform himself into a more vigorous and muscular form - Mumm-Ra, the Ever-Living - by reciting the incantation: "Ancient spirits of evil, transform this decayed form in to Mumm-Ra, the Ever-Living!". While in this form, Mumm-Ra possesses fortification of his mystical might — casting spells, throwing energy bolts, etc. — to battle his foes. He can also alter his physical form into a variety of alter-egos to deceive his enemies.
Seemingly invincible in whatever form he chooses, Mumm-Ra appears to have a singular weakness: seeing his own hideous reflection neutralizes his ability to remain outside the Black Pyramid and forces him to withdraw there in his emaciated mummy form. However, at the beginning of the second season, the Ancient Spirits of Evil overcame this shortcoming. Mumm-Ra is a master of deception, and will use whatever means necessary to fight against the forces of good.
Mumm-Ra has an even more powerful form beyond "Mumm-Ra the Ever-Living" called "Mumm-Ra the All-Powerful": in this manifestation, Mumm-Ra absorbs the entire power of the Ancient Spirits of Evil to become grander in size and strength, and the design pattern on his loin cloth changes, as does his voice.
An absolute master of magic, Mumm-Ra possesses nearly unlimited knowledge of, and experience with, numerous mystical arts from all corners of the universe. As such, he can summon their use to assist him in almost any manner he chooses, most commonly being: flight by self-levitation, necromancy, alchemy, transmogrification, temporal manipulation, teleportation, telekinesis, mind control, astral projection, scrying and energy blasts.
While in the form of Mumm-Ra the Ever-Living, he becomes a conduit for the Ancient Spirits of Evil; such that he can amplify his aforementioned abilities to a nearly cosmic scale, gain superhuman strength, as well as retain his undead status despite the passage of time or any injuries sustained. The price of this power however, is extremely limited stamina: once Mumm-Ra the Ever-Living has surpassed a given threshold of energy-expenditure, he must revert back to his mummified form, and enter his sarcophagus to rejuvenate himself. Also, Mumm-Ra's power in his Ever-Living form is directly linked to the condition of both his sarcophagus and the Ancient Spirits' four statues within his pyramid; should any of them be harmed or destroyed, his power weakens immediately and considerably.
http://en.wikipedia.org/wiki/Mumm-Ra_the_Ever-Living#Mumm-Ra