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.

The Importance of Employment Tests

It is a known fact that the success of an employer and a company as a whole depends largely on the quality and reliability of its employees. This is the reason why employers must invest time and even money in the recruitment and interview process. Doing so would ensure that only the best possible candidate will be considered for a particular job.

When it comes to screening of potential employees, no other tool does it better than employment tests. These tests can measure what is called the KSA – knowledge, skills and abilities of the job candidates. Employment tests in this context are generally written or automated tests, but also include interviews, personality tests, skill tests, psychological tests, performance tests, medical examinations, agility tests, and so on.

A hiring process that is poorly designed is much like a recruitment process based on flipping a coin. Employers are well-aware that the impact of inefficient recruitment decisions can have costly and detrimental outcomes, which may include expensive training costs, decrease in overall productivity, increase in employee replacement, and increase in legal exposure.

Benefits of Efficient Assessments Incorporating assessment tests ensure that your company is making better hiring decisions. It can determine whether or not an employee can meet your criterion for maintaining high productivity. Consequently, pre-employment tests can reduce expensive and time-consuming recruitment steps by straightforwardly narrowing down the choices that will include only candidates who are best fit for the job. Because job fitting is greatly improved, this scenario can also increase the chances of retaining your employees for far longer periods of time. Furthermore, a well-developed pre-employment testing program can present a professional and positive image for your company, and will decrease the risk of hiring complaints.

Although pre-employment tests are basically a tool that protects employers, it can be just as important for them as for the applicant. It would be a shameful waste of time, effort, and even money to prepare for the responsibilities and challenges of a new job, yet find out later on that one is not capable of performing the tasks on hand and is bound for failure.

The benefits of pre-employment testing are endless. However, employers must know that these tests have certain limitations. For one, written tests must only measure skills that are important for the job description that a candidate is applying for. For this, employers must carefully design their pre-employment testing program. Pre-employment tests not properly designed may create an impression of being discriminatory, and this is something employers must avoid at all times.

Designing testing tools take time and experience. If these two are something your company does not have, you can easily find pre-employment testing software packages on the market. These pre-employment tests have been designed by professionals with expertise and experience in the field of recruitment, and thus can efficiently evaluate the general knowledge, office skills, personality, and so on, of a potential job candidate. There are various types of pre-employment test to choose from, and there will surely be one that best fits your needs as an employer.

Clearly, organizations that have a carefully well-developed testing program that best meets their exact needs will have competitive advantage. Employment tests allow employers to make the best hiring decisions and will consequently improve business revenue, productivity, and overall business outcomes.

Nature Photography – Five Tips For Great Rainforest Photos

Rainforest photography, like all good nature photography, is more about your sensitivity to nature than about expensive equipment. Of course you need a decent camera, and you must know how to use it. But the quality of your photos does not depend on the price tag on your camera. As long as you have a tripod, and a camera that allows you to adjust the aperture and shutter speed, you are set to go.

I make my living from nature photography, including a lot of rainforest photos, and I have never relied on the latest equipment for my work. Great rainforest photography is simply about finding an eye-catching subject, in good light, and having a creative eye for composition.

Note: The following tips are for photos of rainforest scenes, not for close-up photos of leaves, fungus etc.

Rainforest Photography Tip # 1: Choose a subject. As they say in the classics, "It's a jungle out there." In the rainforest, you are confronted with foliage, branches, roots, rocks, vines … in your face and all around you. A really good rainforest photo requires structure, to make some visual sense of all that clutter. Look for something that is immediately eye-catching – a big tree that dominates the trees around it; A root system that leads the eye; A waterfall or stream; In short, something that you can build a composition around.

Rainforest Photography Tip # 2: Use the best natural light. The mistake almost everyone makes at first is to take their rainforest photos on a bright sunny day when they are in the mood for a walk. Wrong! In full sunlight, the rainforest becomes a patchwork of light and shade that is impossible to expose properly. What you need is a cloudy day, when the light is much more even. Misty weather adds even more atmosphere to the rainforest, and can add a mysterious character to your rainforest photo.

Do not use a flash. The flash illuminated the scene with flat, white light, eliminating the gentle play of natural light and shade that gives the rainforest its character. Always use the natural light.

Rainforest Photography Tip # 3: Carry a tripod. Taking your rainforest photo under a heavy tree canopy, on a cloudy day (see rainforest photography tip # 2), means the level of light will be very low. You may be shooting at shutter speeds as slow as one or two seconds. You will always need your tripod, and it is best to avoid windy days so that the scene is as still as possible.

Rainforest Photography Tip # 4: Use a wide-angle lens (or a zoom lens, zoomed back to its widest angle). The wide angle lens has several advantages for rainforest photography. Firstly, it exaggerates the sense of perspective in a photo, creating a sense of three dimensional depth. Viewers of your photo will feel like they are looking not just at a rainforest, but into it. Secondly, the wide-angle lens has a naturally wide depth of field. With so much detail all around you, it is important that you can keep both the foreground and the background in focus.

Rainforest Photography Tip # 5: Stay on the path. There are some practical reasons for staying on the path when bushwalking. You minimize the possibility of getting lost, injured, or fined by some over-officious park ranger. The people who run the national parks are not stupid. They know what you want to see, and design their trails accordingly. Sticking to the path will not rob you of any great photo opportunities.

In terms of rainforest photography, you are able to create some distance between you and the foliage around you. It is much easier to photograph a tree when you do not have the branch of another tree in your face. By staying on the path, you can get a clear view of your subject, without interference. You can even use the path as part of the composition in your rainforest photo. It is an excellent way of inviting the viewer to join you on your walk in the rainforest.

So there you have my five rainforest photography tips. Notice they concentrate on light and creativity, not on fancy techniques or equipment. You can make great improvements in all your nature photography this way, regardless of what type of camera you have.

Top 5 Types of Entertainment for Parties

When choosing the most memorable entertainment for parties, first take a look at what kind of party or event it is. Depending on the event, such as weddings, there are wedding entertainment ideas and for corporate events, there are corporate event ideas.

To make it simpler, you can divide the types of entertainment into a group. Remember, entertainment for parties and events can be considered an amusing type of activity from very passive to very interactive. For instance, group classifications are: children, group, public, private or corporate. You want to find the right entertainment for the specific group you would like to entertain for the event.

Here are some examples:

Public Entertainment

When you walk through the park or subway station in any big city, you can probably see a large range of public entertainers amusing the city’s bystanders and passers-by for any amount of money. There are all sorts of public entertainers from Jazz musicians, a violin soloist to mimes. Public entertainers flock to bigger cities because there are a large number of concentrated people in an area to hopefully make some kind of wage. On the other hand, once you make your nominal donation, you can enjoy the gifts these talented public entertainers have to offer.

Corporate Entertainment

Corporate entertainment is aimed specifically at corporate events, award ceremonies and product launches, and is usually private and by invite only. Corporate events can run the gambit scale-wise, from very intimate to thousands of people. Forcorporate event ideas, think about including live speakers or even consider booking live music for corporate picnics and charity functions.

Adult Entertainment

Adult Entertainment is not only referring to the sex industry but can involve entertainment that adults might enjoy, like live concerts, sports, theater and even other activities that might be also appealing and appropriate for kids such aswedding entertainment ideas.

Live Entertainment

Live entertainment can be broad-including all ages and encompassing many varieties of entertainment. For example, music concerts, arena sports, musical theater, plays, live talk shows and seminars-practically any other activity that are aimed to bring large groups of people together and be amused. They can be for wedding entertainment ideas to corporate event ideas.

Child Entertainment

Entertaining kids is a fine balance between mental stimulation and physical activities. That’s why clowns, magicians and puppets are usually the most popular, coupled with games and races. They can be quite enjoyable for adults as well. Live music is also a hit at children’s parties for both young and old alike.

So when considering what kind of entertainment for parties or events, it is simply a matter of matching up the type of entertainment, with the type of audience or group to suit their tastes! Drawing people together with live music is almost always a sure hit! Book your live music today. Call an entertainment professional to help you choose what type of band or DJ you’d like to feature at your party or event!