Computers: Past, Present And Future :: Information Technology

I have been using computers for as long as I can remember, whether it is for entertainment use or work use, computers are part of our everyday lives. They have an effect on almost everything you do. When you buy groceries at a supermarket, a computer is uesed with laser and barcode technology to scan the price of each item and present a total. Barcoding items (clothes, food and books ) requires a computer to generate the barcode labels and maintain the inventory. Most televison advertisiments and many films use graphics produced by a computer. In hospitals, bedide terminals connected to the hospital's main computer allow doctors to typw in orders for blood tests and to schedule operations. Banks use computers to lool after their customers' money. In libraries and bookshops, computers can help to find the book you want as quikly as possible. This has not always been the case though; computers did not always exist, and are continuously changing to this day. I think one group said it best,† Companies promote it for their employees. Parents demand it for their children. Those who have it believe they have a competitive edge. Those who don't have it seek it out. "It" is a computer. We are rapidly becoming a "computer society" Until recently computers were found only in environmentally controlled rooms behind locked doors. Only computer professionals dared enter these secured premises. In contrast today computers are found in millions of homes and just about every office. In fact there is a computer for one in every eight people in the world. Eventually all of us will have at least one computer and will use it every day for work and leisure.† -EYAL POLAD, YARON TWENA, DORON FREIBERG, and GILAT ELIZOV. Role of Computers in the Past â€Å"There is no reason anyone would want a computer in their home.† –Ken Olson, president, chairman and founder of Digital Equipment Corp., 1977 First Generation Almost everything invented or created, has one specific person who has been credited with their invention or creation, but this is not so with the computer. Many people throughout history have added their part to the computer. This could include programs to help the computer run better or faster, some created different kinds of computers, but either way they contributed to the computer we know today. The first â€Å"computer† was developed in 1936 by Konrad Zuse and was named Z1.

Should Recycling Be Required by Law?

PRO MANDATORY RECYCLING * â€Å"Recycling is so beneficial for our planet that it should definitely be required. In an ideal world, everyone would voluntarily recycle, but let's face it: That's never going to happen. It makes me so angry when I watch students in my school throw their plastic water bottles in the trash can when there is a recycling can right next to it! * â€Å"Nearly 70 million tons of material are kept away from landfills each year thanks to recycling, according to the National Recycling Coalition. â€Å"If we have just 30 percent of the population recycling, we'd reduce greenhouse gas emissions as much as if we removed 25 million cars from the road! Imagine how many greenhouse gas emissions we could get rid of if everyone recycled. * â€Å"It's so easy to recycle, and if more people do it, then it becomes more cost-effective. Some people against mandatory recycling say that it's costly, but recycling is a less expensive process if more people are involved.In fa ct, two years after New York City decided that mandatory recycling was a drain on the city — costing $40 million — they discovered that a redesigned, more efficient recycling system could actually save the city $20 million! New York City has now signed a 20-year recycling contract. * â€Å"We need to get more cities and states on board with mandatory recycling. In addition to helping the environment, recycling programs help stimulate the economy by creating more jobs. The benefits of mandatory recycling far outweigh the drawbacks, and it's up to you, CosmoGIRL! eaders, to get your cities on board! Write to your local official and let her or him know how you feel about mandatory recycling. Your actions can make all the difference! † —Laura Carusco, 18, New York City, NY ANTI MANDATORY RECYCLING * â€Å"Mandatory recycling is one of the newest fads in the ‘go green' movement. But what you may not realize is that it's also one of the most costly and w asteful activities to infiltrate America. * â€Å"Contrary to what most people think, recycling does not save irreplaceable sources. Take a look at the current prices for everyday items, like paper.According to the concept of supply and demand, since the price is so cheap, there must be a large supply that backs it up. For example, a pack of notebook paper ranges from just 20 cents to 50 cents. If we were at risk of running out of trees, the price would be much higher. * â€Å"Also, by using less of one resource, we are inevitably using more of others. Daniel K. Benjamin, senior associate of the Property and Environment Research Center, stated in a report that â€Å"on average, curbside recycling is 35 to 55 percent more costly nationwide than conventional disposal. Benjamin goes on to say that in Seattle, where the council decided to make recycling mandatory, they are wasting resources by charging too much for trash pickup and not charging enough for recycling pickup. Also, thin k about all of the extra pollution caused by the recycling pickup trucks! It's like having a garbage truck come through twice a week instead of just once. * â€Å"It's also a misconception that we're running out of room in our landfills. There is enough room just in America to last us for years, and we can always add landfills.Another misconception is that our trash is harmful, but according to the Environmental Protection Agency, a cancer-related death due to modern landfills only occurs about once every 50 years. Cancer causes over half a million deaths a year in the United States alone, so one cancer-related death every 50 years doesn't even compare. * â€Å"Although voluntary recycling has its benefits, it is completely unnecessary and wasteful to make it mandatory. † —Aliza Sajjad, 18, Concord, CA

Men are from Mars, Women Are from Venus Essay

This is the title of the 1990’s Best Selling book which tells that Men and Women are different in their own natural ways. But nowadays, most of the people think that sometimes this is not applicable to both genders. Dual Personality is very common and frequently seen in these days. In fact, Male Vanity is widely experience by most of the men. They are typically described as ‘vain’ in the way they take excessive measures in making sure they always look gorgeous in social situations, quietly suffer from stress levels that are more taxing than what women experience for the same thing, according to researchers. A lot of women wonder how do men became meticulous and how to identify if a man is already becoming vain. So here’s some of my observations regarding with the reasons why a lot of men are experiencing male vanity and the signs of being vain. Women are known for being beauty conscious. We really like to have fair and white skin, looking sexy and gorgeous all the time and to be beautiful inside and out. And to achieve these things, we sometimes depend on beauty products, herbal medicines and Derma Clinics. But nowadays, the rise of male grooming has led to men taking almost twice as many electrical items with them as women, based on new researches. Beauty Products for men are frequently seen on TV ads. They are answering the demand with products streamlined for the male consumer. Clinique has developed an entire line of skin care products exclusively for men. Their ‘All About Eyes’ cream ‘diminishes the appearance of eye puffs, darkness and fine lines.’ They point out that the cream-gel ‘actually helps hold eye makeup in place.’ Yes. We’re still talking about the men’s line. Generally, looking clean and pressed is a good idea. But applying expensive moisturizers, powders and creams before and after bedtime is another thing. Should we call it ‘Vanity’? I guess so. Most of the propagandas that women usually read has reached men. Especially in terms of Diet and Health. We can say that a man that is considered vain is also a diet-crazed. A basic guy’s activities to maintain his good health like sports, balance diet and manual labor are enough to offset a normal diet. But if a man knows about yoga, ab cruncher, pilates or a guy who works for better biceps have no purpose for bigger biceps other than self-admiration is not normal anymore. In terms of their outer looks, Fashion and pop culture have a lot to do with the change. The ultra-slim silhouette and skinny jeans that hit the high-fashion world several years ago have infiltrated men’s departments in mainstream stores like Banana Republic and Old Navy. And because of social media websites like Facebook and Twitter, men constantly are confronted with photos of fit male celebs. Men like to live up to a certain standard, a certain level of providing income. The image of a career, however, has become more important than the actual work. Today, men seek clean, domesticated, polite, sedentary jobs. Fathers used to be firemen, farmers and construction workers, which meant getting their hands dirty. Plastic surgery clinics are reporting a surge in business from men seeking a helping hand to stave off the ageing process. And men aren’t just interested in looking younger, but also thinner and more polished. It is no surprise then that according to the American Society for Aesthetic Plastic Surgery (ASAPS), nearly 171,000 Americans under the age of 18, had some form of plastic surgery in 2000 – with the most common operation being rhinoplasty or surgery to change the size or shape of the nose. Joshua Parilla, 25 years old and a call center agent was asked if he shows some signs of being vain as what people had observe to him. And he replied, â€Å"I visit the Parlor twice a month because I want to have a different styles of haircut. Then I visit a massage spa at least once a month as a reward for myself every time I receive my monthly salary. And sometimes I went to a Derma Clinic to maintain my good skin. And I must admit it.† Not only the ordinary men experienced Vanity but also the once who we did not expect to be vain. I had watched a show titled Palaban, hosted by Mareng Winnie Monsod, Malou Mangahas and Miriam Quiambao. Palaban discusses male vanity with Dr. Kho, actor-model Alfred Vargas, Navotas Mayor Toby Tingco, cosmetic surgeon Dr. Manny Calayan and Carole Sarthou of market research firm Synovate Philippines. Women swoon over them and some of their secrets are regimen that includes regularly going to the gym, use of skin care products, getting a hot oil treatment, and even having cosmetic laser treatment. Some of them have taken to stuffing their bag with their own â€Å"kikay kit† (vanity kit). They use products intended for women too. So now, who says only women can be vain? It seems that Vanity truly changed the name of men. And the rise of Male Grooming has changed the point of views of many people. Men are from Mars and Women are from Venus but we are on Earth so there’s no boundaries here. Self-improvement is a good thing as it makes us feel more confident when we face the world. However, our confidence is and should always be in our own selves as individuals.

The Dollar Sign ($) and Underscore (_) in JavaScript

The Dollar Sign ($) and Underscore (_) in JavaScript The  dollar sign ($)  and the  underscore  (_) characters are JavaScript identifiers, which just means that they identify an object in the same way a name would.  The  objects they identify include things such as variables, functions, properties, events, and objects. For this reason, these characters are not treated  the same way as other special symbols. Instead, JavaScript treats  $  and  _  as if they were  letters of the alphabet. A JavaScript identifier  - again, just a name for any object  - must start with a lower or upper case letter, underscore (_), or dollar sign ($); subsequent characters can also include digits (0-9).  Anywhere that an alphabetic character is allowed in JavaScript, 54 possible letters are available: any lowercase letter (a through z), any uppercase letter (A through Z), $ and _. The Dollar ($) Identifier The dollar sign is commonly used as a shortcut to the function document.getElementById(). Because this function is fairly verbose and used frequently in JavaScript, the $ has long been used as its alias, and  many of the libraries available for use with JavaScript create a  $()  function that references an element from the DOM if you pass it the id of that element. There is nothing about $ that requires it to be used this way, however. But it has been the convention, although there is nothing in the language to enforce it. The dollar sign $ was chosen for the function name by the first of these libraries because it is a short one-character word, and $  was least likely to be used by itself as a function name and therefore the least likely to clash with other code in the page. Now multiple libraries are providing their own version of the $() function, so many now provide the option to turn off that definition in order to avoid clashes.   Of course,  you dont need to use a library to be able to use $(). All you need to substitute $() for document.getElementById() is to add a definition of the $() function to your code as follows: function $(x) {return document.getElementById(x);} The Underscore _ Identifier   A convention has also developed regarding the use of _, which is frequently used to preface the name of an objects property or method that is private. This is a quick and easy way to immediately identify a private class member, and it is so widely used, that almost every programmer will recognize it. This is particularly useful in JavaScript since defining fields as private or public is done without the use of the  private and public keywords (at least this is true in the versions of JavaScript used in web browsers - JavaScript 2.0 does allow these keywords). Note that again, as with $, the use of _ is merely a convention and is not enforced by JavaScript itself. As far as JavaScript is concerned, $ and _ are just ordinary letters of the alphabet. Of course, this special treatment of $ and _  applies only within JavaScript itself. When you test for alphabetic characters in the data, they are treated as special characters no different from any of the other special characters.

Hawksbill Sea Turtle Facts

Hawksbill Sea Turtle Facts The hawksbill turtle (Eretmochelys imbricate) has a beautiful carapace, which caused this turtle to be hunted nearly to extinction. Here you can learn about the natural history of this species.   Hawksbill Turtle Identification The hawksbill turtle grows to lengths of 3.5 feet long and weights of up to 180 pounds. Hawksbill turtles were named for the shape of their beak, which looks similar to the beak of a raptor. The hawksbill was prized for its shell, which was used in combs, brushes, fans and even furniture. In Japan, hawksbill shell is referred to as bekko. Now the hawksbill is listed under Appendix I in CITES, which means that trade for commercial purposes is banned. In addition to its beautiful shell and hawklike beak, other identifying features of the hawksbill turtle include overlapping scutes, and 4 lateral scutes on each side of its carapace, a narrow, pointed head, and two visible claws on their flippers.   Classification Kingdom: AnimaliaPhylum: ChordataClass: ReptiliaOrder: TestudinesFamily: CheloniidaeGenus: EretmochelysSpecies: imbricate Habitat and Distribution Hawksbill turtles occupy a large range that stretches throughout all but the worlds coldest waters. They travel hundreds of miles between feeding and nesting grounds. Major nesting grounds are in the Indian Ocean (e.g., Seychelles, Oman), Caribbean (e.g., Cuba, Mexico), Australia, and Indonesia. Hawsbills  forage around  coral reefs,  seagrass beds, near  mangroves  and in muddy lagoons. Feeding A study by Dr. Anne Meylan of the Florida Marine Research Institute showed that 95% of a hawksbills diet is made up of sponges (read more about hawksbill diet). In the Caribbean, these turtles feed on more than 300 sponge species. This is an interesting food choice - sponges have a skeleton made of needle-shaped spicules (made of silica, which is glass, calcium or protein), which essentially means, as James R. Spotila said in his book Sea Turtles, a hawkbills stomach is filled with small glass shards. Reproduction Female hawksbills nest on beaches, often under trees and other vegetation. They lay about 130 eggs at a time, and this process takes 1-1.5 hours. They will go back out to sea for 13-16 days before laying another nest. Hatchlings weigh .5 ounce when they hatch, and then spend their first 1-3 years at sea, where they may live on rafts of Sargassum. During this time they eat algae, barnacles, fish eggs, tunicates and crustaceans. When they reach 8-15 inches, they move closer to shore, where they eat primarily sponges as they grow larger. Conservation Hawksbill turtles are listed as critically endangered on the IUCN Redlist. The list of threats to hawsbills is similar to that of the other 6 turtle species. They are threatened by harvesting (for their shell, meat and eggs), although trade bans seem to be helping the population. Other threats include habitat destruction, pollution, and bycatch in fishing gear. Sources CITES. Status of Trade in Hawksbill Turtles (Online). CITES Web Site. Accessed February 20, 2011, as of August 2015, no longer accessible.Mortimer, J.A Donnelly, M. 2008. Eretmochelys imbricata (Online) IUCN 2010. IUCN Red List of Threatened Species. Version 2010.4. Accessed on February 20, 2011.NOAA Fisheries. Hawksbill Turtle (Eretmochelys imbricata). Accessed August 10, 2015.Spotila, James R. Sea Turtles: A Complete Guide to Their Biology, Behavior and Conservation 2004. The Johns Hopkins University Press.Turtles.org The Atlantic Green Turtle (Online). Accessed February 16, 2011.Waller, Geoffrey, ed. SeaLife: A Complete Guide to the Marine Environment. Smithsonian Institution Press. Washington, D.C. 1996.

Why are you considering The Ohio State University Essay - 1

Why are you considering The Ohio State University - Essay Example The University’s customized approach to serving the needs of all students regardless of their social, economic and cultural differences is congruent with my values. Ohio State University research equipment and knowledge provision will lay a strong professional foundation that is necessary for my career path. I am intelligent, empathetic, tenacious and highly motivated. In addition, nothing deters me from accomplishing my goals due to my courage, determination and a strict focus on my priorities. I am outgoing and a team player and take pride in what I do. I believe that by joining Ohio State University I will be able to exploit my potential in both academics and other extracurricular activities. Through constructive interactions, my background as an international student will provide an innovative perspective in the University’s search for knowledge. As an Ohio State University student, I will gain relevant professional knowledge to solve complex challenges and also the ability to analyze biomedical issues through different perspectives. I will conduct my studies in accordance with the ethical principles of the University and change lives through the management and leadership qualities I acquire. Ohio State University is an esteemed institution matched by none that will give me a foundation to advance my career in Biomedical Engineering. My first- hand experience as an ALP student at the University has indicated a host of resources that will help me realize my Biomedical Engineering dream. Through the five months as an ALP student, I have acquired written and spoken English skills in a greater way than in my previous studies. Thanks to this experience, I now realize that Ohio State University is a University like no other, and it is my University of choice. An opportunity to further my studies at the University will provide unprecedented skill sets in Biomedical

Analysis essay Example | Topics and Well Written Essays - 750 words - 2

Analysis - Essay Example Thoreau’s character is discernible from his ability as a writer and philosopher. His principles were strong enough for him to accept a jail term without resistance. As a result, his concept associates with the willingness to suffer, and it manages to transcend through generations. In Thoreau’s opinion, life is about cooperating with good deeds and ensuring that the society is led in a justified manner. Concerning leadership, he asserts, "That government is best which governs least" (Thoreau). He believes that governments are not necessary because they are sometimes, inadvisable. This is evident in the present societal context where governments are oppressive. It is necessary to prioritize right over wrong. One’s conscience must be over the laws that govern a territory. For instance, the laws on slavery were quite oppressive for many slaves, but some White settlers nevertheless encouraged slavery because of the existing policies. According to Thoreau, people should not follow the law if it undermines their dignity. Although evil is unavoidable, one should not indulge or be part of the evil. Thoreau demonstrated this when he refused to pay taxes in rebellion to the tyrannical government (Gross 11). In the present society, the United States engages in war, for instance, the war in Afghanistan. Thoreau sees this as an oppressive process that signifies an unjust government that performs evil actions, even on powerless members in the society. Thoreau confirms that there is no use of reforms in government institutions. Despite the change of regimes and election processes, little change occurs within political circles, and the populace fails to enjoy the accompanying advantages that come with change. Thoreau ideologically distanced himself from the government and its related institutions because of its greed. This is evident in the present society in