Many aspects of Computer Engineering are affected by the study of Magnetism. Unlike many fields of study, however, magnetism can be both helpful and harmful when it comes to many of the devices used in computers. One of the most basic examples of the use of magnetism in conjunction with computers is the hard drive. Nowadays, hard drives are used in many different consumer electronics products from computers to mp3 players to game consoles. A hard drive is used to store large amounts of data, and also to retrieve stored data quickly. A hard drive works by storing data in the form of tiny magnetic domains onto a magnetic ‘platter’. The platter is made up of thousands of tiny magnetic domains. Within each domain, a northern charge would denote a 1, while a southern charge would denote a 0. Because all computer data is comprised of 1’s and 0’s, they can be stored on a hard drive as N and S charged domains. The charge is written by a read/write head on the end of an actuator arm.
The actuator is controlled using two very strong magnets which move the arm around. While it might seem that the magnets would interfere with the magnetic storage on the platter, the magnets that control the actuator are positioned on a vertical axis, so the field they produce does not modify the storage on the platter. It is because of the nature of a hard drive that magnets can also be so harmful to them. If you were to take a magnet and stick it to the top of a hard drive, the magnet would alter the states existing on the platter resulting in a loss of data
Another example of computer related technology is a standard CRT computer monitor. Even though LCD monitors are become more popular because of their size, traditional Cathode Ray Tu...
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...d fan on top of the heatsink to further distribute the heat. Some new computers come standard with 3 or 5 fans, and some people have as many as 9 or more in a single case. Needless to say, as the number of fans goes up, so does the noise level. One way to both reduce the noise level, and to increase the amount of cooling is to use magnetic-driven fans. Because it is magnetically driven, it requires less space in the traditional motor hub area, which results in more airflow, improving the efficiency of heat dissipation. They work by creating a magnetic field on the outside of the fan blades, and using that to push the blades creating airflow. Between the way that hard-drives work, the way a CRT is able to display images, and the way that fans work, there are many ways that magnets influence the way that computers work, and even improve upon existing technology.
The Magnet Recognition Program was initially developed to attract and maintain nursing staff. According to American Nurses Credentialing Center’s (ANCC) web site, the program “was developed by the ANCC to recognize health care organizations that provide nursing excellence. The program also provides a vehicle for disseminating successful nursing practices and strategies.” Nursing administration continues to have an integral role associated with the demonstration of excellence in achieving the highest honor of nursing distinction. The exploration of force one, quality of nursing leadership, continues to be the foundation of magnet recognition.
Armature - Sometimes called a rotor. This is the part that spins. The armature can be either a permanent magnet or an electromagnet.
Pickups work with a bar magnet which is rapped with turns of wire. We know that magnets with coil can transform electrical energy into motion. Also motion can be turn again into electrical energy. On a pickup, the vibration in the magnets is produces by the vibration that the ferromagnetic strings make. Then at the same time in the coil there is a vibrating current.
Magnet status is an award given by the American Nurses’ Credentialing Center (ANCC) an affiliate of the American Nurses Association (ANA) to hospitals that meet Magnet status criteria. Upon analysis of the history, concepts and theories which drive Magnet status, and reactions to Magnet status by various professionals, one will see that the Magnet Recognition Program awards an extremely positive accreditation that improves nursing, hospitals, and community image.
Computer hardware engineers research, develop, and test computer systems and components such as processors, circuit boards, memory devices, and many more (Bureau of Labor Statistics). They design new computer hardware, create blueprints of computer equipment to be built. Test the completed models of the computer hardware that they design. Update existing equipment so that it will work will new software. Oversee the manufacturing process for the computer hardware. Maintain knowledge of computer engineering trends and new technology(Bureau of Labor Statistics).
The monitor is likely the most important part of the computer. Without it, you would have no idea what you were doing. Imagine trying to write a term paper, or surf the Internet without one. It would be impossible. While the technology powering the displays doesn’t change as fast as it does for other parts of the computer, there are advances which provide consumers with many choices for displays. Today, the most popular displays come in two types, Cathode Ray Tubes (CRTs) and Liquid Crystal Displays (LCDs). CRTs have been around longer, and are the most common due to the fact that they are cheaper. However the convenient size of LCDs along with falling prices has made them a popular choice as of late. This paper will examine the similarities and differences of the two, and try to determine if one is better than the other.
As a graduate student, I will undertake research and coursework in Electrical Engineering to enhance my competencies in this field. I intend to complete my master's degree in order to pursue my doctorate. The research that I am most interested in pursuing at Northeastern University surrounds the optical properties of MEMS devices, and the development of substrate-based fast electro-optical interfaces. My interest in this area stems from my undergraduate study in MEMs development for tri-axial accelerometers.
Electrical Engineers research, develop, design, and test electronic components, products, and systems for commercial, industrial, medical, military, and scientific applications (Cosgrove 749). They are concerned with devices that use small amounts of electricity that make up electronic components such as integrated circuits and microprocessors. By applying principles and techniques of electronic engineering they design, develop, and manufacture products such as computers, telephones, radios, and stereo systems (EGOE, 121). Electrical engineers touch everyone lives through the things they have designed or created. Electrical engineers have invented the lights in your house, the television, the stereo, the telephone, computers, and even your doctor’s blood pressure gauge (Stine 300).
the arm and read and write head. The arm that holds the read/write heads is controlled by the mechanism. in the upper-left corner, and is able to move the heads from the hub. to the edge of the drive. The arm and its movement mechanism are extremely light and fast.
In the past few decades, one field of engineering in particular has stood out in terms of development and commercialisation; and that is electronics and computation. In 1965, when Moore’s Law was first established (Gordon E. Moore, 1965: "Cramming more components onto integrated circuits"), it was stated that the number of transistors (an electronic component according to which the processing and memory capabilities of a microchip is measured) would double every 2 years. This prediction held true even when man ushered in the new millennium. We have gone from computers that could perform one calculation in one second to a super-computer (the one at Oak Ridge National Lab) that can perform 1 quadrillion (1015) mathematical calculations per second. Thus, it is only obvious that this field would also have s...
Magnets are stones that produce magnetic fields. The magnetic field is invisible, but is responsible for the most noticeable aspect of a magnet: the attraction of a metal object or the repulsion of another magnet. Magnets are used in common everyday household items: credit cards, TVs, speakers, motors, and compasses. A magnets strength is measured by its magnetic moment. (“Magnetism”)
A computer is a device which is used for several applications; business, gaming, or school. It’s important for people to know how computers work because in this day and age, operating a computer is an everyday task. This complex electrical device utilizes several parts inside of it to keep itself cool, conduct the proper tasks, and maintain stability. These devices can be found several places whether it be on the job, in one’s room, or on a school campus. Computers are essential for everyday use in order to complete what is required. What each component is and its function will be described.
The “head”, or device used to transmit data onto the magnetic disks, is an important part of the hard disk and composes most of the physical events. Current is passed through the head or in the physic’s case, the conductor, to produce a magnetic field around the conductor. This magnetic field can influence the disk’s magnetic material. The head is driven by an electric motor, using electromagnetism, to exert pushing and pulling forces on magnets to the rotating shaft. In some cases the head moves to a required area on the disk, and the motion of the magnetized surface induces tiny voltage.
Monitor radiation has been discussed throughout computer journals for years. I have learned that different monitors have higher or lower radiation levels. Monitors made overseas are generally considered to have a lower radiation level than those built in the United States. For example, as an engineer the Management Information Services (MIS) unit told us that NEC monitors had much lower radiation levels than IBM monitors. After sitting at a computer during my eleven-year career as a Civil Engineer with the Los Angeles Department of Water and Power, I often found that headaches at the end of the day were common. My eyes felt strained due to the looking at a monitor for an extended period of time. Over the years as an engineer I bought various types of glare screens for my computer monitor. Even though I doubt the glare screens help with the reduction of radiation given off by the monitors, they do seem to help with eyestrain.
Choosing a career is very important in a person’s life. Over the past two decades, many professions have change significantly with the influx of technological developments. One needs to think about the things that interest them and what kind of lifestyle they want to have. Some things a person should think about are what qualifications are needed, what type of training is necessary, and the future need of the career they choose. Some other things to consider would be how much money they will make, what is the probability of advancement, and does the career satisfy their need for an enjoyable life.