Articles from: May 2016

Define Computer Hardware


It is quite well known that the working of the computer is pulled by hardware and software. One can define computer hardware as the electronic, magnetic, and electric devices that carry out the computing functions. Hardware is the physical components of the computer like microprocessor, hard disks, RAM, and motherboard. The peripheral devices such as monitor, mouse, keyboard, printer, and speakers can also be included in the list of hardware parts. The programs that run on the computers like Windows, C++, and Photoshop are the software parts of the computer. A good example for an easy understanding of hardware-software definition is music CDs. The actual compact disk is the hardware, while the songs and music in the CD are the software parts.

There is another way to define computer hardware. Hardware devices are the executors of the commands provided by software applications. For example, let us see what happens when you click the print button of the web browsing software. The software application provides a command to the processor, which is the central part of all computer hardware. Processor in turn checks for an attached printer. If the printer is ready, the software will get a positive response from the processor. Then the software application provides instruction to the printer via the processor to print the web page. In that sense, hardware parts are the foot soldiers and software applications are the commanders in the digital operation that takes place within a computer.

The main player of computer hardware is undoubtedly the microprocessor. It is the sun in the solar system of computer hardware devices. It is the central component and all other components work around it. It is an integrated chip on which a number of functions are incorporated. Two specifications determine its efficiency. One is its processing speed, which is measured in gigahertz. The other is its bit rate. Commonly available processors are 32 bit and 64 bit. The bit rate is a measure of the efficiency of a processor to carry out multiple operations at the same time.

One cannot define computer hardware without mentioning the two types of memory used in computers. One is permanent memory. It refers to the magnetic storage capacity of hard disk. It is measured in gigabytes. The second is RAM or random access memory. This memory is able to store data only when the computer is switched on. The memory will lose all the data when the computer is switched off.

Another important product that one should mention when one defines computer hardware is motherboard. It is the electric and electronic circuit board on which all the other components are inserted. There are several other kinds of products such as sound card, video card, network card, and modem that complete the hardware spectrum.

Water Science Fair Projects


The phrase Go Green means different things to different people. Some people have taken this idea and recycle everything they possibly can in order to keep trash out of the landfills. They also realize that not recycling is wasting products that can be reused. Other have taken the phrase and changed all their light bulbs to compact fluorescents in order to save energy. There are other people who have purchases hybrid cars or starting riding bikes to school and work in order to cut down on carbon emissions. There are literally hundreds of different ways to Go Green in our every day lives, and people are finally getting on board with it. Students have even taken up the challenge with their water science fair projects. Some of the latest submissions to these events are water science fair projects with a focus on the philosophy of Go Green.

Water science fair projects are particularly well suited to the environmental movements occurring today. Much of the concern for the environment by governmental and private eco groups is for the health of our water supply. Water science fair projects can focus on many different aspects of this concern. One area is the need for potable water in many areas of the world. What we take for granted that just comes out of the pipes in our homes is a rare commodity in many parts of the world. In developing nations the lack of clean drinking water is on the top of the list, and for good reason. Nothing survives without water. A students water science fair project just may have the answers for this critical life-threatening problem.

Another area the students focus on with their water science fair projects is the negative effect of pollution. This is particularly suited for demonstration purposes at science fairs. While all are familiar with the disastrous effects of ecological tragedies such as oil spills, less is known about the long-term effects of other types of pollution. This is one area a student may explore with their water science fair project. An additional area of concern lately is the health of the fresh water rivers of the world. Students are also taking these larger issues, researching them, and presenting their findings for their water science fair projects.

Tips For Audio Visual Presentation And Audio Recording For Multimedia Presentation


Digital recording promises to be the technology which helps us to get rid of the tiresome work of recording long conversations / interviews on tapes and to no longer burdened with boxes and boxes of 90-minute tapes. Now you can record interviews right onto your computer or your laptop. We can now process our interview recordings / conversations digitally, by adding effects, mixing, and so on, plus edit to literally dozens of “generations” without any loss of quality.

Human beings have five senses. The more of their senses to which you can appeal during a presentation, the more likely they are to respond favourably and remember the contents of your presentation. This applies to sales pitches, classrooms, and everything in between. Stimulating smell, taste, and touch can be challenging, but creating a good audio visual presentation is within anyones reach.

The two components of an Audio Recording for Multimedia Presentation are pictures, captions, videos, or other visual aids, and music or spoken words, in other words audio files. An audio visual presentation can be as simple as a professor lecturing to the class while displaying slides. It can be as complex as a product launch with a live band, stage light show, smoke, video screens, and lasers. It generally falls somewhere in between. Today, with the advent of PowerPoint computer projection technology, someone will create PowerPoint slides to accompany their presentation. These slides can also include embedded sound files or video clips.
Audio visual presentations work so much better than just simply visual or simply audio for a number of reasons. First, if you provide more stimuli for your audience they are less likely to get bored and lose focus. Second, it has been proven that people learn in different ways. If you tap the two main ways people learn in an audio visual presentation, you are more likely to get all your information across.

Audio Visual Presentation Manufacturers have finished creating film on video, there are still some additional video production equipment required to edit and finalize video to finish your masterpiece. By using professional quality editing equipment you can make your video one that has the professional polished look that makes it different from the home video or any amateur production. Some of the video editing equipment needed is the following: video editing software, the sound mixing equipment, and the video duplication equipment.

Nowadays there are a lot of providers for production equipment such as camera, video, lighting and for film processing. You should also research on film equipment vendors who can provide movie production supplies that are suited to your needs. Look for those that offer quality service, technical excellence, and fair pricing. You wont have to buy this video production equipment now since there are many that can be rented. However if you intend to have your own equipment, you can purchase a lot of second hand ones as well.

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