Input and Output Devices in Computer

Input and Output Devices in ComputerName THENG WEI JUNQuestion 1A calculator receives incoming data, processes them and produces an issue. Hence, in a typical reck atomic number 53r, there isAn remark twist i.e, a key be onA Central Processing Unit (CPU) I.e, a box andAn output catch i.e, a monitor or a Visual Display Unit (VDU).Discuss in detail how these wiles work unitedly to produce data.IntroductionA ready reckoner is a general purpose device that can be programmed to carry out a set of arithmetic or logical operations. The computer is one of the twentieth centurys most advanced sciences and technology invention, for the production of human and social activities had a very key influence, and the speedy development of a strong vitality. Its applications extend from the initial military research applied to tout ensemble argonas of society, has form a huge computer industry, led the worldwide technological progress, which triggered a profound social change, computers end-to-end the school in general, corporate institutions, into the homes of ordinary people, become an indispensable tool in the development society. It is an heavy symbol of mankind has entered the information age. With the proposed development of the Internet, computers and a nonher(prenominal) technologies once again set off a revolution in information technology, according to the definition of Chinese school-enterprise networking Union, almost all things technology and computers, combine with the current Internet technology, between the object and the object to achieve environment and real-time status information sharing and intelligence gathering, transmission, touch on.Components of ComputerInput DeviceThe input device is any hardware device that sends data to the computer, without any input devices, a computer would only be a display device and non allow users to interact with it, much like a TV. Examples of input devices are keyboard, webcam scanner, video set about device and mouse. When the people use keyboard to typing, the keyboard willing send the data to computer, the word will be point into the monitor.Output DeviceOutput devices such as a monitor or printer compel information you input available for you to view or use. A display device is an output device that visually conveys text, graphics, and video information. Information shown on a display device is called soft copy because the information exists electronically and is displayed for a temporary period of time. Display devices include CRT monitors, LCD monitors and displays, gas blood plasma monitors, and televisions.System UnitSystem unit is the main part of a desktop computer and it is to a fault known as chassis or tower. It is the housing that is used for protecting and organizing all the components in the system unit that makes up a computer. System unit includes M otherwiseboard, CPU, RAM, Hard Disk, Video bill sticker, Sound Card and other components but does not includ e keyboard, mouse and other peripheral devices. In this section, I will explain and illustrate the electronic components in the system unit along with their functions.Working in computerThe computer does its primary work in a part of the machine we cannot see, a control nucleus that converts data input to information output. This control center, called the central processing unit (CPU), is a highly complex, colossal set of electronic circuitry that executes stored program instructions. All computers, large and small, must have a central processing unit. The central processing unit consists of two parts The control unit and the arithmetic/logic unit. individually part has a specific function. Like input devices are used to input information to computers. Generally, the input devices send information to memory (RAM) and the processor or central processing unit processes the information and output devices shows it.ConclusionIn my opinion, I think all the unit of computer component a re important and their own role in getting a computer system unit to function. Input devices are used to input information to computers while output device transmit information to one or more(prenominal) users. Central processing unit carries out the basic operations or processes. Finally, all components are required for a system unit to function. All the components are connected to the motherboard which is mounted on the casing. If one is missing, the computer will become the system error or cannot working at anytime.Question 2The Internet is a range of space where computers are connected to each other and they can approach to information from ONE (1) place and apply that information to another place.Discuss in detail the advantages and disadvantages of net in the education field.IntroductionThe Internet is a network of several computers communicate with each other using a common language connection is made, ie WAN, LAN and stand-alone international computer network communicati on protocol in accordance with certain composition. Internet began in 1969 in the join States is the carrier of a global network and a public information, which the mass media faster than any foregoing one communication medium.AdvantageFirst point is cyclopedia, sometimes an encyclopedia may not perpetually be available to students and they may have difficulty in gaining access to the books in the library. In that case, the encyclopedia of various subjects available on the Internet can be helpful. This is more useful for students who belong to communities not having English as their mother tongue. Kids and teenager can besides be benefited by the Internet by using the pictures, videos, which is one of the major advantages, when comparing textbooks versus computer teaching or encyclopedism.Next, all the latest news program constantly updated on the Internet on news sites. Students learning politic, can have an access to all the current affairs through the Internet in the colleg e, at home, or at any other place. Example, if student want to know or search about historical accounts like speeches, biographies, etc., are also easily available on the Internet in detailed and accurate versions. No need to furious time or money finding in book shop or other place.In addition, another positive effect of Internet in education is the onset of distance education or online learning. With this facility, you can take up short-term courses with the course material available online, learn, and give exams. One of the benefits of online learning is that people from any part of the world can gain knowledge on different subjects, pick up courses.DisadvantageOne of the disadvantage of online learning is that Instructors will not be on hand or on campus and easily accessible to answer questions. While they may be available on email, thats not the same as having access to a living, breathing person and to be able to ask questions during a break or after class.While technology tools and the Internet infrastructure are becoming more and more stable, there are still instances when technology fails. Servers may be down, or you may palpate periods when your connection to the Internet is interrupted. Hard drives fail, and email may get caught in spam filters and never be delivered. Its important to backup important class information and make certain that you have alternative ways to communicate.Working alone can isolate a student, making it easy to put off or neglect course work or drop out of an online class completely. It takes a certain make sense of internal motivation to continue when youre pressed for time and dont have fellow students to talk with and help to stir up you along the way.ConclusionOn my opinion, I think the invention of the Internet has both disadvantages and advantages. The disadvantages of using internet are that it has caused a lack of privacy and it has made it easier to commit crimes. The advantages of the internet are that it can be used for learning purposes and that it connects the world.ReferenceNo.1Jones, P. E., Wall, R. E. (1989). Components of computer anxiety.Journal of Educational Technology Systems,18(2), 161-168.Musen, M. A., Gennari, J. H., Eriksson, H., Tu, S. W., Puerta, A. R. (1994). 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