The world of technology through computers - a learning Tutorial

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Technology has always been a part of our lives, from the construction of the first clubs and fires of the space age and the information age. We always learn enough about technology to use as part of our daily lives, but computer technology is one of the least understood parts of our existence. Therefore, this series of articles will clarify some of the mysteries of the teams.

What are the benefits of learning more about the teams? If you are completely satisfied and not have frustrations with his team, you're a very fortunate minority! However, as other types of technology, most understand it better equipped will be handling the many problems that can arise. Knowledge is power, after all! You can help himself better with this information, and may help and impress your friends as well. So let's dig into the inside of the computer.

This introductory article will talk about the parts of the equipment and the difference between the various parties, such as hardware and software, programs and data and memory and information storage. Future articles in the series will go more in-depth on these, as well as many other topics. Questions and discussions of the readers will also be addressed in future articles.

What you see when you look at a computer system? The most basic modern configuration will include four components; the team itself, a mouse, a keyboard and a monitor. There may be many other additional components, such as printers, modems, speakers, microphones, etc.. Let's start with our system of four basic components.

It is useful to consider this model of equipment: the computer calculates information (processing); We must provide information on the computer (input) in order to receive new information from the team (of output). Each piece of equipment provides one or more of these functions, input, processing and output.

A keyboard and a mouse input on the computer. After processing the information, the results are output to a monitor or a printer. Some devices can provide both input and output. For example, we receive an email from a friend (internet through the modem entry) and the response to the email (exit to the internet through the modem). Or you can create a spreadsheet and save it on your hard disk (data entry to the hard disk drive) and then open the spreadsheet from the hard disk (output of data from the hard drive). The modem and the hard disk by what are known as input devices are capable of input and output, / output (I/o).

The hardware is any device that can play physically. Each device that has spoken so far can be physically touched. Software can not be played. It is the electronic information created by the flow or the absence of an electrical signal. Do not touch the programs or data that are used on the computer. You can touch and maintain a unit of hard drive or a CD or a DVD, which is why these are examples of hardware. But you cannot touch the flow or the absence of an electrical signal, ones and zeros that make up the binary world of computers. If you can touch it, it is hardware; If you can not touch it, it is software.

Programs and data are considered to be software, because they are composed of flow or absence of electrical signals, the binary ones and zeros that teams of processes. Applications and programs of words are practically the same; they are instructions that indicate a team what to do. Data believed could be a document, spreadsheet, graphic, or email.

All software, programs and data are saved on the computer of one form or another. When working in a word processing document, for example, is loaded the program (word processor) and data (document) in the computer's RAM (random access memory) memory. This is where is preserved while the computer is processing an active information.

But what happens when the electricity is turned off for the team? There is only a lack of electrical signal, which would be all zeros in the binary world of the computer. So we must have a way to store information so that we can use later. That is why we use the hard disk drive. But the hard drive has no electric current flowing when the power is switched off, so it uses a technique equivalent. As of old cassette tapes, hard disk has a magnetic surface that stores the information.

I think that a compass, with North and South poles. North and South can be used to represent the zeros and ones of the processes on the computer. Now all addresses between North and South represent the range of audio signals in a music cassette, but if saturate us these magnetic particles to be North or South, that will offer a digital equivalent to the flow or the absence of an electrical signal, the zeros and equipment worldwide.

Another way to remember the difference between the electronic memory of the RAM and hard disk drive magnetic storage is to think in RAM as the desktop and the hard drive is a great archive. We extract information from storage on the drive lasts/filing cabinet and place it on the desktop of RAM. The more RAM you have, the larger the desktop and more elements (programs and data) may be open. The larger the hard drive, the information can be stored in the archive. In addition, you can have a great file cabinet/unit hard disk and a small desk/RAM, which would mean that it could store much information but there is not enough space to also open many at a time, or a small file cabinet/unit of hard drive and a great desktop/RAM, allowing it to have a lot of information open at the same time but not much space to store it. The best-case scenario, of course, would be to have wide memory and information storage.

This has been a great deal of information at the same time, so we are going to bring it to an end by now. These are some questions to take into account. What are some different types of input devices? What are some different types of output devices? An audio CD would be considered hardware or software? The music on the CD would be considered hardware or software? Do you prefer you have, more memory and storage of information more?




Now that they have done these questions, let's turn the tables and see what questions you want to ask. Send a letter or email to lediskdoctor@yahoo.com.

D. Mark Scott has been working with computers since well before Windows and the World Wide Web. He now shares his perspective on teams with an absorbent introductory review of the computer world. Easy to read and follow, Mr Scott writings are sure to help people get a better idea of the power available on personal computers today.




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