The History Of The Device Drivers Information Technology Essay

The History Of The Device Drivers Information Technology Essay In the Windows operating system, device drivers are fairly easy to understand and operate. The feature of Windows update makes installing device drivers simple and very user friendly. By default, Windows has a wide range of drivers already stored in the kernel that holds the foundation for device drivers. This list of drivers gets updated with every operating system release (Windows XP, Windows Vista, Windows ) and with every service pack Windows puts out along with them (Windows XP Service Pack 1 and 2). Device drivers can work in two different modes in the Windows platform, kernel-mode and user-mode. Both have their advantages and disadvantages between the different modes. The biggest difference between the modes is the stability and performance speed. In kernel mode, there are no restrictions in access to the hardware and run faster than in user mode. This is because the driver communicates with the hardware directly in kernel mode rather than accessing the hardware using its corresponding API (Application Programming Interface) like in user mode. The downfall to kernel mode is when the device driver crashes; the computer will immediately crash as well. In user mode, the drivers do not have direct access to the hardware; instead, they rely on the devices API to delegate hardware access. While user mode device drivers operate at slower speeds than kernel mode drivers, a major advantage to user mode device drivers is that it is very crash tolerant. When the device driver crashes in u ser mode, it is always recoverable. Most modern device drivers operate in user mode except for video card drivers (most of the code needs to be kernel mode for top performance). The top two video card manufacturers in the industry right now are Nvidia and ATI. Both require separate drivers from their corresponding manufacturers. In a typical installation of an Nvidia video card driver, the driver come with mostly kernel mode code and a small amount of user mode code as well. The Nvidia Control Panel (after an Nvidia driver installation) is an example of the user mode code that Nvidia incorporates into their drivers. These drivers from the manufacturer are called, official drivers. There are other drivers out there for these manufacturers called, unofficial drivers. The most commonly known unofficial driver creator is known as Omega Drivers which, as described by their site, add more options to the drivers such as added resolutions. These drivers are marked as unofficial because they have not been approved by the manufacturers and it is recommended to use them at the users own risk. Sound drivers are required to provide the output of sound from your computer. Like video cards, there are two locations that a sound card can be. One place is called onboard sound, which is provided by the motherboard. This is most common location of sounds cards for laptops. The other location may be found on a PCI card slot, which is typically found on the back of a desktop computer. Popular onboard sound drivers and manufacturers are Realtek and SigmaTel. Popular PCI slot sound drivers and manufacturers are Creative Sound Blaster, Turtle Beach and ASUS. Unofficial drivers are also available online for these audio drivers. Network drivers are required for any kind of wireless or wired (Ethernet connected) device. For laptops, a wireless card typically comes standard. For desktops, a wireless PCI slot card or a wireless USB is required to get wireless connectivity. Most modern motherboards for laptops and desktops provide wired connectivity by manufacturers standards. Both the wireless and wired cards use completely separate drivers. In most cases, the wireless and wired cards are made by completely different manufacturers. For example, my Dell laptop wireless card is made by Dell and my wired card is made by Marvell Yukon. One of the biggest advantages to Windows 7 is the wide range of bare bone network drivers implemented into the kernel to enable the wireless or wired card to function. In previous Windows versions, such as Windows XP, you could not connect to the internet and get wireless/wired drivers unless you installed them via CD, USB or floppy disk. This problem was a constant annoyance for users upon which Windows 7 fixed. An important aspect of the motherboard that is important to have updated drivers for is the motherboards BIOS as it controls every single piece of hardware on a computer. Having the most recently updated BIOS for your motherboard is very beneficial because it fixes a lot of compatibility issues between the computers hardware devices. While the basic Windows update drivers may be good enough for basic level computer users, the more advanced users like to update to the latest drivers by the manufacturer to provide maximum compatibility and performance out of their devices. Sometimes when installing/updating these device drivers there are problems that can happen. One of the biggest common problems with updating drivers is that most users do not implement a full driver installation. There can be some compatibility problems when updating versions of drivers without properly uninstalling the driver fully and then installing the most updated driver. The reason full driver installation is important is because its less error prone than just to update a driver without uninstalling first. Another common problem is users installing device drivers from the wrong operating system architecture (x86, x64). If a user installs the drivers with the wrong architecture, typically, the installation screen will tell you that it is not compatible. If the installation screen doesnt inform a user, the user will definitely know because their device will no longer work. Therefore it is important to identify what kind of computer architecture your computer is because device drivers run differently on different architectures. Like hot fixes and patches, device drivers also secure your computers privacy by fixing security holes upon with hackers can take control and even disable various devices on a computer system. The security of device drivers and the security of the operating system come hand-in-hand meaning both play an equal role in the security of a computer system. The most security involved device that most computer users are worried about is the network device. Users should recognize that updating network device drivers is just as important as updating a routers firmware.

Lesson 8 Key Question Essay

To begin Viewing and critiquing King Lear Act III scene ii, Directed by Richard Ouzounian, written by William Shakespeare, I noticed that overall the production is good, but there are some weaknesses that could be better if a little afford applied and similarly, there are strength that gives the production good features. I watch the scene and I found out that the strengths and weakness of the production are equally analyzable. First I would like to critique the weaknesses in the production: in my point of view, the scene decoration, characters costumes and the severity of storm could be better if a little more afford applied—by blowing up some stuff like leaves, sticks or show the wind whaling wildly and dancing like tornedo and also dressing Lear in most King’s interesting costumes. Also the character that plays the role of King Lear could be older than the current character because he is not old enough to stir up audience emotional. In addition, if the character of fool bertried in thinner guy than current one, it would be more suitable because usually when you imaging a fool, you can see a very quick little guy. Soundly, in the production there are strengths as well –such as intonation, pausing, emphasis, volume, facial expression, and body language. The character of King Lear by applying above techniques used to convey and show relationships between himself, fool, Kent, God; and his stage of madness. For example, when he says, â€Å" Blow winds, and crack your cheeks† (III ii 5) he is look up ward to the sky and it conveys that he is talking to his Lord. Or in other point, he gives hugs and kisses fool â€Å"Come on, my boy. How dost, my boy? Art cold? Which show his new understanding of poor world and his relationship with them. His Voice volume emphasises that he is struggling to keep his sanity. He takes pausing by holding his knees, which shows how the real storm groaning insight him mind and he exposes himself to the weather which show that because of his insight pain he does not feel the outer pain. His restless movement is convincing the audience of his downfall realization. Therefore, by taking inconsideration the above elements, I think this production is consisting of both—weakness and strength, which overall made convention. Support question 11 characters| Scene iv| Edgar (poor Tom)| â€Å"I used to be an honorable devoted servant who curled his hair, wore his mistress’s glove in his hat as a token of her affection, and slept with his mistress whenever she wanted. I swore oaths with every other word out of my mouth, and broke the oaths shamelessly. I used to dream of having sex and wake up to do it. I loved wine and gambling, and had more women than a Turkish sultan keeps in his harem. I was disloyal and violent†¦..† Summary: Edgars’ speeches show the nature of life in the current fallen state if Lear universe. | King Lear| â€Å"O Regan, Goneril, Your old kind father, whose frank heart gave all—Oh, that way madness lies. / Let me shun that.†Summary: even dough Lear’s unexpected and sudden downfall brought him to the statue of insanity; he tries and straggles to stay saint. â€Å"What, has his daughters brought him to this pass?—Couldst thou save nothing? Wouldst thou give ’em all?â⠂¬ (60) Summary: Lear correctly realized his mistake that cause his downfall and he says this to Edgar in very unconscious situation, which shows that he still sees the world in a distorted lens.â€Å"is man no more than this?†¦.Thou ow’st the worm no silk, the beast no/ hide, the sheep no wool, the cat no perfume† (105-107)Summary: Lear is curiously asks the basic question about man’s true nature: as who are we really? He has a new vision of humanity.| fool| This cold night will turn us all to fools and madmen.(78-79)Summary: fool’s speech suggests that—life may never redeem; Lear may have to endure a fallen state permanently.â€Å"prithee, Nuncle, be contented, ‘tis a naughty/ night to swim in† (112-113)Summary: the fool advice Lear to stay warm, otherwise he may literally get cold and die in a story night. | characters| Scene vi| Edgar (poor Tom)| â€Å"When we our betters see bearing our woes,/We scarcely think our miseries our foes./†¦. How light and portable my pain seems now/.. Which makes me bend makes the king bow. / When false opinion, whose wrong thought defiles thee, / In thy just proof repeals and reconciles thee†¦..† (110-115)Summary: By watching the king’s downfall, Edgar got the courage and power to fight for his right and against those who victimize him.â€Å"Tom will throw his head at them.—Avaunt, you curs! /Tooth that poisons if it bite,/Mastiff, greyhound, mongrel grim,/Tom will chase them off.—Go away, you mongrels!/Whether you bite to kill,/Mastiff, greyhound, or ugly mutt,† (65) Summary: Edgar will survive by taking his and Lear’s revenge from their enemies and it doesn’t matter for Edgar that how much their enemies are powerful, and dangerous.| King Lear| â€Å"I’ll see their trial first. Bring in the evidence./(to EDGAR) Thou robà ¨d man of justice, take thy place./(to FOOL) And thou, his yoke-fellow of equity,Bench by his side./(to KENT) â€Æ'You are o’ th’ commission./Sit you too†.(35-40)Summary: showing that a wise king should follow the trial, conference with his wise advisers—read carefully and then issue it. So that be able to judge fairly and stay stable and avoid downfall. Tray, Blanch, and Sweetheart—see, they bark at me.Look at the three little dogs, Tray, Blanch, and Sweetheart—all barking at me.60-65| fool| â€Å"No, he’s a yeoman that has a gentleman to his son, for he’s a mad yeoman that sees his son a gentleman before him.† (10-15)Summary: fool is continuing to remind King Lear of his folly while sending the message to the audience—the Elizabethan was smart that she did not give her power to any gentleman before she is achieved her distinction.

No Good Friday by Athol Fugard Essay

In the play No Good Friday, the main character is Willie Seopolo, the scholar in the township. He has realized that although he is educated, he will be unable to advance socially and economically because of the colour of his skin. His dreams and hopes fade away as he realizes that they now mean nothing, it was a waste of time to dream in the first place. There is no social mobility and the blacks have no rights. He refuses to adopt this mentality and to accept fate. I prefer to view Willie as a tragic hero rather than a tragic figure. A tragic hero may be defined as an honourable character with a fatal flaw that eventually leads to his ruin. Willie’s fatal flaw was his desire to live a fair life without restrictions. He resented the fact that the whites were in control and wanted to be treated equally. He was admired by the people of Sophiatown for being educated. They looked up to him and held him in high esteem. Because he was educated he was able to view certain issues from a different perspective. Unlike the typical residents of Sophiatown who simply accepted their social reality, he stood for change and equality. From the beginning of the play it is noticed that Willie does not accept the status that the dominant whites have given to him. When Guy explains to Tobias how he must behave ‘yes baas, no bass, thank you bass even if he kicks you in the backside’ Willie gets upset and shouts ‘Stop it, damn you!’. It is evident that Willie is angry and discontented with his current position. Although he does not accept it, he has no choice but to live with it. As a result he feels an overwhelming unhappiness ‘loneliness melancholy, despair’. He made a mistake believing that education was an escape. He realizes that even if he is educated, he is no one because of his skin colour. This rude awakening brings across a feeling of anger and hopelessness â€Å"Bloody Ass! That’s what I think of B.A†. All that he ever hoped and dreamed for was impossible. He is sick of being intelligent because he knows it means nothing. After Tobais dies, Willie feels an overwhelming amount of guilt, shame and grief â€Å"I’m sick of my whole life. Everything!† The dreams that Tobias had for himself and his family reminded him of the dreams that he had when he was a child. He hated Tobias because he was full of dreams that would never be fulfilled. After Tobias’s funeral  it is almost as if Willie says farewell to his own hopes and dreams. He is unable to write to Tobias’s family, incapable of fulfilling his only purpose as being educated in a township. He is made more aware that the apartheid system is inevitable and even more unwilling to accept it. Willie then has a strong urge to do something about the situation. He is tired of seeing men with hopes and dreams carried out in coffins, he is tired of the oppression. He is aware that idea of going to the police would just bring about laughter but he does it anyway. He lets go of his pride with the false hope of achieving a goal. When the police simply laugh at Willie he is even more angered and frustrated by the situation. The police are Shark’s protectors and are only concerned with apartheid laws, not criminal laws. This is ironic in the sense that apartheid laws are criminal and inhumane. Willie’s stance does not fit into the social reality. His friends refuse to stand next to him against Shark. They see what he is doing but they do not accept it. They let Shark kill him and do not try to stand against him. Willie dies with the sense that he has nothing to live for and the hope that he will bring about a change. Willie does not view himself as a hero. Infact, rather than being a selfish hero, I view Willie as being a selfless tragic hero. He could not have been sacrificing his life for selfish motives because he would not benefit from them. He believed that it would serve as an awakening to those around him and maybe change their mentality. He may not have fulfilled his purpose as the mindset of the people in the township might not change, but he died with the idea that he would cause a change. For this reason Willie is a tragic hero. Fugard Athol, Township Plays, Introduction by Dennis Walder, Oxford University Press, United Kingdom, 1999

Pollution Is A Business Problem - 1724 Words

Each year industries use over 4 million pounds of materials to provide the average American family with the necessities it needs for one year. However, many of these products are not biodegradable and produce a considerable harm to the environment resulting in air and water pollution. In this essay, I will assess the problems that arise from business and its relation to pollution, the role of corporations and other stakeholders in addressing these issues, and develop a plan for businesses to tackle these issues in the future. Pollution is a business problem and can be prevented by implementing unique environmental programs into all businesses. Pollution â€Å"In 2014, 92% of the world population was living in places where the WHO air quality guidelines levels were not met.† (World Health Organization, September 2016) Pollution has many different causes ranging from litter to pesticides/fertilizers as well as air pollution from burning fossil fuels. There are also many effects of pollution such as smog, acid rain, global warming, and health issues. Pollution is a business problem because the environmental damage corporations inflict directly affects major stakeholders such as consumers and communities. It also isn’t going to improve unless we make a difference now. Conserve Energy Future states, â€Å"By 2050, 6 million people will die per year due to air pollution.† This is a huge ethical problem for businesses, therefore, pollution should be a problem they address now while there isShow MoreRelatedEssay On Water Pollution1493 Words   |  6 PagesThe Problem Water Pollution In my community, water pollution can often become a very serious problem. Pollution from sewage spills, storm runoff, road salt, and The Issue The problem in my community that I chose to research is the issue of water pollution. Water pollution can start by sewage spills, storm runoff, road salt, marine dumping, oil pollution, and underground leaks. 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