A PC may include the HAL in the OS kernel or in the form of device drivers that provide a consistent interface for applications to interact with the hardware peripherals. The HAL provides the following benefits:. By: Brad Rudisail Contributor. By: Kaushik Pal Contributor. By: Leah Zitter Contributor. Dictionary Dictionary Term of the Day. Techopedia Terms. Connect with us. Sign up. Term of the Day. Best of Techopedia weekly. But by this time, both Dr. Frank Poole and Bowman are becoming suspicious of Hal's behaviour.
They climb into one of the EVA pods, out of earshot of Hal. Poole states that he has "a bad feeling about him". Bowman and Poole suggest disconnecting Hal if he is wrong about predicting the fault. Unbeknownst to them, Hal read their lips through the window of the spacepod.
Translating their lip motions, Hal learns of their plans for his disconnection; according to Clarke, "he will be deprived of all his inputs, and thrown into an unimaginable state of unconsciousness.
To Hal, this is the equivalent of death. For he has never slept, and therefore he does not know that one can wake again. Poole goes out to replace the supposedly malfunctioning AE unit. As he drifts through space to the satellite dish, Hal takes control of the pod and rams it into Poole, disconnecting his oxygen hose and venting the air in his suit, killing him.
Bowman, obviously distraught by the loss of his friend, goes out to retrieve Poole's body. However, while Bowman is out on his excursion, Hal shuts off the life support systems on the three astronauts in hibernation, which kills them all.
After Bowman returns to the Discovery I, Hal denies him reentry into the pod bay. So Bowman has to maneuver the pod over to the emergency airlock. Unfortunately, in his haste to retrieve his friend, Bowman had not bothered to don the helmet of his life-support suit because he had not believed he would need it, making it very difficult to enter the emergency airlock, as he would have to travel through the vacuum of space in order to do so.
This, however, does not stop Bowman. Risking the hazards of explosive decompression, he eventually gets inside, grabs a space helmet, and goes to Hal's logic memory center to erase his memory. There he pulls out the memory tablets that control Hal's higher functions. As his memory degrades, Hal begins to give off information programmed very early in his life, such as the date he became operational. When all his logic is gone, he begins to sing the song " Daisy Bell.
Heywood R. Floyd pre-recorded about the Tycho Monolith before their departure, and the real purpose of the Discovery I's mission. Hal is a major protagonist in this film and is revived by Dr.
Chandra once the Leonov reaches Jupiter, and prepped for his new mission of piloting the Discovery One back to earth. However, due a change of plans caused by TMA-2's disappearance, the crew of the Leonov is forced to leave the Discovery and Hal behind. Rudenko characters characters characters characters. Popular pages. Floyd The Leonov. Explore Wikis Community Central.
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