Posted by admin | Posted on 07-03-2010
Category : Computer
Tags: Advances, Computers, Technology
Advances in technology have changed how we communicate with others and the ways in which we do it. Computers have played an immense role in making some tasks less tedious and speeding up response times to inquiries, and research methods.
The word computer makes us first visualize that mechanized device that most of us use every single day of our lives for personal and professional reasons. In fact many people suffer computer withdrawal symptoms when they are away from their PC’s (or personal computers) for too long.
Whether you choose the convenience of a take-it-everywhere laptop or the desktop computer there is one suitable for every taste and every necessary job.
Computers, albeit very different kinds of computers can be found in so many ordinary things that we use everyday. We often use computers without even knowing it. Think televisions, microwave ovens, and CD and DVD players. The list is endless of where computers, whether they are big or miniscule, can be found. Even cars cannot perform properly without their portable computers in working order.
A computer has many specific parts and they each perform a specific function onto themselves. A central processing unit (or CPU) is integral to the computer’s functioning, as is its vast storage of memory. The motherboard (or main circuit board) works in conjugation with the electrical element, which is the power supply, which handles any and all electrical concerns.
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Posted by admin | Posted on 04-03-2010
Category : Computer
Tags: Computers, Consumer, Desktop, Reports
The desktop computer has become just another appliance you use every day. Replacement sales–not first-time purchases–now drive the computer market. Fully loaded desktops selling for less than $800 are common, even among established brands.
WHAT’S AVAILABLE
There are dozens of companies vying to put a new desktop in your home. Dell, eMachines, Gateway, Hewlett-Packard (which merged with Compaq in 2002), IBM, and Sony all make machines that use Microsoft’s dominant Windows operating system. eMachines, recently merged with Gateway, specializes in budget-priced Windows models. Apple is the sole maker of Macintosh models. Small mail-order and store brands cater to budget-minded buyers.
Price range: $400 to $3,000.
IMPORTANT FEATURES
The processor houses the “brains” of a computer. Its clock speed, measured in gigahertz (GHz), determines how fast the chip can process information. In general, the higher the clock speed, the faster the computer. But not always, since different chip families attain different efficiencies. Manufacturers of Windows machines generally use 1.6- to 3.8-GHz processors with one of the following names: Intel’s Pentium or Celeron, or AMD’s Athlon or Sempron. Celeron and Sempron are lower-priced processors that equal higher-priced chips in many respects. Intel now assigns “processor numbers” to its chips, de-emphasizing clock speed. Apple’s Macintosh machines use 1.25- to 2.5-GHz PowerPC G4 or G5 processors, which are manufactured by IBM. Apple has announced that they will begin a transition to Intel processors in 2006.The system architecture of some families of chips allows them to be as fast as or faster than others with higher clock speeds, so speed comparison by the numbers can be misleading. Read more...
Posted by admin | Posted on 26-01-2010
Category : Computer
Tags: Advantages, Compared, Computers, Enclosures, Industrial
The demands on computers in industry are a lot higher than the demands of a conventional desktop PC.
Often environments in industry are the exact opposite of the optimum conditions an off-the-shelf computer is designed to run in. There can be large quantities of dust, dirt, grease and grime. It can be too hot or too cold and there could be many processes and cleaning that requires water, not forgetting the forklift trucks and pallet trucks that could completely destroy a PC if it got clouted.
The solution in industry and manufacturing has, for many years, been to use specialist solid state industrial computers. These machines are often intrinsically sealed, rugged and tough. They are often designed to be resistant to dust, dirt and grime and can also be completely waterproof.
These machines are also very expensive, not just to buy but also to maintain. Industrial computers have to be maintained by service engineer, often forcing shutdown of production lines they also have to be replaced periodically as the hardware and software will eventually become obsolete. All computers eventually fail but an industrial computer enclosure means that over three generations of computers can use the same enclosure.
Industrial PC enclosures are a more efficient, affordable and reliable alternative to these expensive machines. The main benefits of an industrial computer enclosure are:
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Posted by admin | Posted on 26-01-2010
Category : Notebook
Tags: Computers, Notebook, Types
Notebook, notebook computer, laptop, and laptop computer are different terms for a small computer, which is mobile, and weighing about 1 to 6 kg or 2.2 to 18 pounds, depending upon the model. In 1979-1980, Bill Moggridge of GRiD Systems Corp. designed one of the first laptops and named it as the GRiD Compass 1101. It featured the clamshell design where the flat display folded shut on the keyboard. In May 1983, Gavilan Computer Corp. introduced and first marketed as a laptop, known as Gavilan SC. About this same time, Sharp Corp.Ltd., announced their laptop Sharp PC-5000.
In 1989, Compaq introduced Compaq LTE, which was a laptop of a smaller size, about the size of an A4 paper notebook, and it popularly came to be known as a notebook computer or notebook. Thereafter the terms laptop and notebook began to be used interchangeably. Nevertheless, the terms, notebook and laptop are incorrect terms, as due to the heat, many laptops cannot be placed on top of the lap, and most notebooks are not the size of an A4 paper notebook. However, what manufacturers usually call as a notebook, end-users prefer to call it as a laptop; hence both the terms are used.
According to the functions and the models of notebooks, they are generally classified as: Ultraportables (screen is diagonally less than 12 inches, weight is 1.7 kg or less); thin-and lights (screen is diagonally from 12 to 14 inches, weight is from 1.8 to 2.8 kg); medium-sized laptops (screen is diagonally from 14 to 15.4 inches, weight is from 3 to 3.5 kg); and desktop replacement computers (screen is diagonally from 17 to 20 inches, weight is 4 to 6 kg). Read more...
Posted by admin | Posted on 06-12-2009
Category : Computer
Tags: Computers, Dive, Styles, Types
A scuba diving computer can be a divers best friend. It will allow you to stay down longer than if you were diving off of tables. There are many types and/or styles of dive computers you can choose from. Which one is best is really personal preference and is suited to the way you dive. The following are some of the choices you will have when purchasing your dive computer.
Console Dive Computer
A console dive computer is attached to the rest of the equipment via a hose. The console dive computers typically come with a pressure gauge. The readouts are typically larger than on a wrist dive computer so they can also be easier on the eyes.
There are also options for a scuba dive computer to be mounted on your hose (this is the type we currently use) or clip onto your BC. Choose whichever is more comfortable for you and fits into your price range.
Wrist Dive Computer
The wrist dive computer is very popular. These types of computers look like large watches and are worn on the wrist. They will tell you all you need to know at a glance. Some wrist dive computers are also able to be mounted in a console.
Sometimes the faces may be a bit small for all the information the computer can display, so make sure you will be able to read it underwater. Read more...
