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Category Archives: Computer

Ways Choosing the Most Competent Computer Technician

However, this is one of the most difficult moments for these people. Most of them are usually unprepared on what they can do to find the best computer technicians. If anyone who owns a car knows they need to be in contact with a reliable mechanic, one will wonder why some of the computer owners are caught pants down with computer repairs.

If you want to choose the most competent local computer technician, you have to ask yourself some questions first.
  • How soon do I want my computer repaired?
  • What exactly is supposed to be fixed on my computer?
  • Am I financially prepared for the task?
  • Do I have the time to look for an experienced technician?

Once you ask yourself all these questions, you will be ready to go to the field and find a reliable expert. One thing with computer specialists, you may not easily tell if they are good or not. You have to evaluate them thoroughly to determine their abilities. Even when they are mobile computer repairs, you still need to assess them. If in doubt, you use the tips below to evaluate your future computer repair expert.

  • They must have all the required academic qualifications. You can call their training institutions to confirm they were once students.
  • They need to be licensed to operate that business. Dealing with unlicensed technicians puts you at risk of causing further damage to your computer.
  • Choose an experienced repairer. If you want to have the services, you need someone who is skilled and experienced.

Apart from the factors mentioned above, your expert of choice should have the following personal qualities to be certain that you will get reliable services.

  • Easy to work with. They should not be complicated or have clashing personalities.
  • Patient to listen to you and be ready to explain to you the fault with your computer.
  • Understanding and ready to negotiate their charges
  • He or she should be honest and trustworthy to their deals. This means that they will even give you guarantee for their repairs.

History of the Computer Printer

Here’s a bit of background into the history of the printer.

The first computer printer

The first high-speed, non fluid printer was manufactured in the early fifties, by Remington Rand. This printer was used in combination with the UNIVAC computer. It was essentially an evolved form of the electric typewriter, and the same ‘typing’ mechanism was used in these printers, but the actual printing was directed by the computer, instead of fingers.

The laser printer

A type of dry printing press, initially called electro-photography, was invented by Chester Carlson, in 1938. This system was later called xerography. It became the basis for the laser printer technology that we know today. In 1975, the IBM 3800 laser technology made it possible to print text and high quality graphics onto paper.

The dot-matrix printer

In 1970, Digital Equipment Corporation produced the first dot-matrix printer, the LA30, which was able to print 30 characters per second. Improvements to speed and usability followed the same year when Centronics Data Computer Corporation introduced Model 101 with printing capabilities of 165 characters per second.

The ink-jet printer

The first laserjet printer was introduced by Hewlett-Packard in 1976, although it was not marketed until the late eighties. It was slow, had problematic ink cartridges and made nasty smears. The technology behind the laserjet was invented by Canon. Having gone through many changes and improvements over the years, inkjet printers are now among the most popular in the world.

The printer as we know it today

The printer of today is kind of a centipede. Faster and more versatile than ever before, this nifty and innovative piece of electronic equipment does not only print anymore. It can do your photocopying and scanning as well, which doesn’t only make our day-to-day jobs a breeze, but it also gives us a lot of extra time and reduces the need for physical space in our offices. Printers have also become much more economical in price, which makes it possible for everyone to own one, whether for personal use such as printing photographs, or for use in our small home businesses.

Revolutionary 3D printing technology

One dimensional printing has given way to two-dimensional printing, and in the past couple of years we’ve seen the development of the incredible 3D technology emerge, which opens up a whole new world of possibilities. 3D printing has become extremely popular, with many printing companies jumping on the bandwagon. 3D printing applications are unlimited. This technology is used in all sectors of today’s design and manufacturing industry, from prototype testing to molding and casting to fine feature applications. The marketing sector is also hugely benefitting from this revolutionary printing technology with the creation of comprehensive visuals and all types of other marketing aids. Other current uses are the manufacturing of prostheses and even bio printing of live tissue for the creation of organs for transplantation purposes. The possibilities are endless.

Processor- What it’s ?

The processor, or the CPU (Central Processing Unit), is typically thought of as the brain of the computer. It controls all of the processes done through the computer. The processor of a computer is the hardware within a computer that carries out the instructions of a computer program. It does this by performing the basic arithmetical, logical, and input/output operations of the system. The overall fundamental operation of most CPUs is to execute a sequence of stored instructions called a program. These instructions are kept in some kind of computer memory.

There are two typical components to all CPUs. These are the Arithmetic Logic Unit (ALU) and the Control Unit (CU). The ALU performs arithmetic and logical operations, while the CU extracts instructions from memory and decodes and executes them. The CU will call on the ALU whenever necessary.

There are four steps to just about every CPU: fetch, decode, execute, and write back. During the first step, fetch, an instruction is retrieved from program memory. Next, during the decode step, that instruction is broken up into parts that have significance to other parts of the CPU. Then, various portions of the CPU are connected so that they can perform the desired operations, this is the execute step. Finally, the results of the execute step are written back to some form of memory. Typically, results are written to some internal CPU register for quick access by subsequent instructions. So, basically, the CPU is responsible for reading instructions from the computer’s memory, reading data specified in arguments from the memory, and writing results back to the memory.

So, how does a processor do all of the above? Well, hardwired into a processor’s design is a list of basic operations that it can perform. These are called an instruction set. The operations of the CPU include adding or subtracting two numbers, comparing numbers, or jumping to a different part of a program. Each operation itself is represented by a specific sequence of bits. This sequence is called opcode. To execute an instruction in a computer program, the processor uses the opcode for that instruction, as well as its arguments.

When looking at processors, there are two very important factors of the processor to consider. These are the clock rate and the core count. The clock rate is the speed at which a microprocessor executes instructions. Processors require a fixed number of clock ticks, or clock cycles, to execute each individual instruction. The faster the clock rate, the more instructions the CPU can execute per second. So, you want to make sure your processor has a good clock rate. The core count identifies how many independent CPUs are running within a single architecture. The higher the core count, the more potential for better multiprocessing. So, similar to the clock rate, you want to be sure your processor has a decent core count. Core counts are usually identified with a prefix (ex: dual-core, quad-core, hexa core, and so on).

The CPU controls all processes that are done through the computer; this is why it is known as the brain of the computer. It is important to understand how a processor works, and its key components, so that you can better understand your computer in general.

Wallpapers for Computer

Are you using ordinary wallpaper with an average resolution? Are you unable to see the fine details of the images in your wallpaper? This really sucks? Here we have a solution. Try some HD wallpapers. Now the wallpaper technology has entered into new era of high definition. High definition wallpapers have higher resolution than ordinary wallpapercovers. They are fine, sharp images. Bright, sharp wallpapers are better than dull wallpaper. The HD wallpaper are much like ordinary wallpapers the only difference is in their resolution. Depending upon resolution, wallpaper are available in different sizes and dimensions. HD wallpaper are slightly bigger in their size.

Nature has different creatures which we can use as wallpapers by taking their pictures. These creatures include geographical beauties, charming birds and animals. Every human being loves birds; their charming voice is soul comforting. A bird in our house is like a whole nature in house. Unfortunately we cannot keep birds in our office, work place and college. Then what’s the solution? What if someone uses bird wallpapers? Different bird wallpapers are available online. Some are free of cost. In case wallpaper is copyrighted we have to pay for it. A range of bird and animal wallpapers is available online including parrots, sparrows, macaws, pea cocks, ostriches, and many more. We have to select bird wallpapers according to our nature and love for the type of birds.

What if our pet bird’s picture is available in HD? Obviously we will select that one. Our favorite bird wallpaper in different perspectives like during flight, feed time, sleeping time in nest can be used for this purpose. And their young ones looks soul comforting too. HD bird wallpapers comfort with bright colors, their sharp images and fine details. One feels pleasing when the feather color of our favorite bird is with sharp color boundaries. These birds bring us closer to nature. HD bird wallpapers may or may not be freely available on internet because of their cost.

Animals are true reflections of nature. Like birds we also love animals. Some of them are pet animals. Pets like dogs, cats, horses etc. Running horses in wallpaper is much more pleasing then blunt white wallpaper. In case of animals, a wide variety of wallpaper are available including cats, dogs, lions, deer, horses and many more. Hundred thousands of animal wallpapers are available on internet. So choose these beautiful creatures and their pictures to refresh your mind and soul.

Computer Problems and Corresponding Hardware Solutions

If you find your computers or systems suffer from some sort of a deficiency, chances are you can correct this by choosing an appropriate component upgrade. If you don’t know what component you need to correct your system’s deficiency, no problem; here, I will provide you with some of the most common computer problems, and the corresponding component which will assist in correcting the problem.

Slow Boot Time, Sluggish Program Launches

I once had a computer which took a full ten minutes from launch to usability. That’s a long time, and granted that the computer was running several programs from launch, still seems a bit excessive. If your workstation or server suffers from a slow boot time and sluggish launch times for programs, then you will want to look into a solid state. SSDs boast significant improvements over traditional hard disk drives, chief of which is speed. A SSD hosting programs and operating systems will increase the efficiency of boots and executions, translating into ultra fast boot times and program loads.

Staggering Performance, Freezes, Slow in Processing

The usual culprit of such symptoms is the processor. As the main brain of a computer system, the processor is tasked with all mathematical and logical functions, and thus any deficiency in processing power will manifest across a variety of applications. As more processes are tasked to the CPU, you will notice a “bottlenecking” of instructions which can cause staggered performance, “glitch” behavior, freezing, and general slowness. A processor with a higher clock rate or more cores can prove an effective solution, provided the processor is in the same family.

Staggering Frame Rate, Insufficient Video Output

These are two separate problems, but we will tackle them as one since they are addressed by the same fix. If you notice, during high resolution graphic displays or rendering jobs, that the frame rate or visual quality is insufficient, a new video card is warranted. A video card with a larger amount of dedicated graphics memory (the standard as of this writing is GDDR5) will correct this problem. If you lack sufficient video outputs, a video card with multiple HDMI, VGA, or DVI ports will allow for dual, triple, or quadrupled extended displays.

Slow Performance When Initiating Multiple Programs

If you find that your system has sufficient processing power but still performs sluggishly when multitasking, chances are you can solve this by configuring additional memory. A high-gigabyte memory kit can supply additional multitasking power for an enterprise server, for example; find the appropriate RAM for your system and you should be able to return to optimized multitasking applications. Thank you for reading, and I hope to have provided you some potential solutions for your next computer expansion project.

USB Flash Drives

With the innovation of USB gadgets like the custom flash drives, our life has changed radically. Most of the individuals nowadays certainly have minimum one computer system but few of them have more than one. This is the valid reason to have your own custom drives or products.

Most of the employees, students, computer literate and others persons are using USB Flash Drives to shift the data like videos, pics, presentation etc from one system to another.

USB flash drives has become as ordinary a pen or a calculator. They are helpful for moving the information, sharing and storing files and data. These days it is also used for entertainments data like audio and video clips. One can upload more data on these drives with enhanced storage space. With USB 3.0 you can transfer the data 10 times faster than Old USB 2.0 technology. USB drives are becoming faster and quicker now.

Even you can use custom flash drives for promotional activities. Sales data like product demos, videos and other information can more prominently reach your potentials clients and customers with the little assistance of custom USB drive. You can preload the marketing data like product brochures, catalogue and presentation on these drives. Even get your company logo and message imprinted on them. Just send these preloaded USB drive to your customer and clients. It will make a lasting impression on them.

Now a day’s home Hi-Fi, TV sets, tabs and car stereo units are now fitted with a USB port. This permits a USB drive having media files in an array of formats to be used on devices which support the format.

The music and film industry has started using these drives to promote new albums, movies, TV serial and music. Just load the music and video clips on these drives and send or distribute to potential customers. This will create the buzz in the market.

These drives are also famous in medical industry. Medical Representative can carry vital data and presentations to show them to doctors, hospitals and clinics. You can get these Custom USB drives in the customized forms of capsules, injections etc to make them look more attractive. Just leave the drive after business meet, you clients will remember you always.

They also make great worker and customer thank you gifts. It is the finest way to reward a staff member for a great job or to customer for their continued loyalty towards your company or products.

Moreover companies can considerably slash theirs stationary budget by placing several marketing brochures or catalogues on single drive.

Educational Institutes can distribute notes, faculty handbooks, lectures, test, schedules and other materials through these USB drives. Even you can promote your educational institutes through these drive by providing your school or college achievements presentations, registration form, courses covered etc in these drives to parents.

Many more industries like insurance, financials, sports, marketing agencies, food & beverages etc can take the help of Custom USB drive to promote their company brands and increase the customer loyalty.

Wireless Keyboard

A work desk that is full of clutter and loose wires can be hazardous, not to mention very annoying. You can easily get confused with all the wires and have problems identifying each of the gadget connector. But thanks to technology, we now have wireless keyboards which tackles this problem.

The wireless keyboard actually looks like the same as a standard keyboard. The only difference is that the latter uses infra-red beams to transmit typed data to the computer.

Merriam Webster define infrared rays as electromagnetic radiation with a longer wave length than light but shorter when compared to radio waves. The computer has a radio frequency receiver or a Bluetooth antenna which receives the data transmitted to it by the keyboard. When using the wireless keyboard, it ought to be placed in such a way that the receiver is within range of the infrared beam.

There are certain advantages and disadvantages with wireless keyboards. The most common advantage would be the reduced clutter and increased amount of space. Many of us can imagine wishfully what our home tables or office desks may look like without the wires all over the place.

The quantity of clutter may additionally be reduced by introducing a wireless mouse too. They are particularly safe where those of us who are prone to accidents are involved. Also the space now accessible may be put to a different use.

In addition, due to the adaptability these keyboards have, they allow the user more ease and less strain. This is ideal for those who have to sit in one position for a long period of time. As you can imagine it would reduce the hospital bills where backaches and joint pains are involved. The installation is also more convenient.

Without all the cabling there is less disarray and less time is consumed which would otherwise have been used in hooking up the various wires. An additional advantage is that with wireless keyboards, more than one user can access the same computer at a time. This also saves on time.

The disadvantage of wireless keyboards is that there is not many to choose from. This would also mean that additional costs will be accrued as wireless keyboards are expensive. Additionally, there have also been reports of reduced functionality of this type of keyboard. The infra-red beam may also be interfered with specially when the user is a certain distance away from the computer and an item comes in between then the bandwith is interfered with.

Ways Cleaning the inside of Computer to Prevent Damage

Normally, when something of ours needs to be cleaned, it’s apparent to us. When our dishes need to be cleaned they fill up the sink, when our clothes need to be washed they fill up the hamper, but when our computer needs to be cleaned, it doesn’t show any signs of being dirty, or does it?

Let us begin with why we need to clean our computers. The inside of a computer contain chips that maintain a high temperature while running. How high a temperature really? High enough that unless the chips receive the right amount of air flow they could easily fry. The difference between a cool computer and a total meltdown is simple air flow. Cooling is such a simple process but definitely one of the most important processes to a computer. It is also the number one reason why you should clean your computer on a regular basis.

While your computer may look clean on the outside with regular dusting, on the inside, the components of your computer could be covered in dust and animal fur. Especially if your CPU sits on the floor, even more so if you also have carpet and you probably have the worst case scenario if you additionally have pets.

When dust and animal fur get inside your computer through the air intake vents, it attaches itself to the internal components, and over months of building up, it prohibits air from properly flowing around all the parts. Once the air flow is restricted, the processor could start to slow down so that it doesn’t risk overheating. Or the chips could eventually degrade and at some point they would burn themselves out. No matter what the case what you will have on your hands is a computer that has lost its efficiency and that runs a lot slower than it should, or dies altogether. In fact, it is actually very easy to mistake the slowness due to overheating for other problems such as spyware, viruses or lack of memory.

Luckily cleaning the inside of your computer is very inexpensive and very simple. Whether you feel comfortable about handling the task yourself or you take your computer to a local computer expert the process and cost should be minimal.

Lastly, now that you know why cleaning your computer is so important to the health and longevity you should know how often to clean it. While the frequency that you clean the inside will depend on whether the CPU sits on the floor, whether you have carpet and pets, it is a good rule of thumb to clean the insides every 6-12 months, and more often if you have several pets.

Ways be a Computer Technician

There are different kinds of computer technicians. PC, Mac repair and data recovery technician. A PC technician is the one who is trained for PC or laptop repair. This repair could be a software or hardware repair. A software repair includes fixing operating system or application related problems. A hardware repair is mainly related to parts in the PC or laptop. There is no limit on how much computer education the person should have. On the lower side if he has a computer technician diploma then he can start work as computer technician. Usually A+ certification (This course includes Microsoft and other related certifications) is the official certificate that is required by most of employer when they look for computer techs. In most cases a grade 10 plus a computer diploma or a plus certification is enough.

Other kind of technician is a Mac technician. Let me differentiate between two plate forms that are mainly used these days. One is Windows and the other one is Macintosh. Microsoft makes windows and Apple develops Mac. All the operating systems developed by Microsoft (Windows 3.1, Windows 95, Windows 98, Windows Minimum, Windows 2000, Windows XP, Windows vista and Windows 7) are called windows plate forms. On the other side, Panther, Tiger, Leopard and snow leopard are the operating systems written by Apple engineers. Apple operating system only works at their own hardware that means Apple make their own computer machines to be used with their plate form. Windows operating system runs on PC (personal computer), laptop or net book. There are other platforms that are very rarely used like UNIX and Linux. To become a Mac technician, one must be an Apple certified. Obviously experience is required after certification.

It’s a trend that a PC technician would not work on Mac machine. The reason in my opinion is Mac machines are more delicate and sensitive when it comes to repair these machines. The software platform is totally different than Windows system. The other reason could be the cost of these machines. Mac computers are expensive and personal computer technicians do not want to take risk. Another reason is parts for Mac computers are not available everywhere like PC parts are.

The next kind of computer technician is data recovery tech. This is the most high tech job. There are two important steps to become a computer data recovery specialist. First, one must have expert knowledge of storage media e.g. opening a hard drives and must be trained to understand how hard disk or data storages work. A data recovery course or hard disk repair course is must for data recovery technicians. Data recovery job involves using different type of equipment. A Hard disk expert is trained on how to these data recovery equipments. Data recovery expert must use this kind of technology. The recovery process is not simple to follow especially using these machines. Whether it is PC, Mac or data recovery technician, one must be certified and experienced to do the job properly.

Virtual Keyboard

Today, most of the technology lovers own innovative virtual keyboard, the latest technological discovery found in the market. This amazing device does not burden you with tiring clicking of keys for performing typing tasks; instead it supports laser technology that facilitates you to make best use of touch screen. This specialized device is sensitive to slightest touch and, hence, it is purchased by most of the touch screen lovers. Undoubtedly, these special devices are customized for meeting requirements of a business organization. Each of these companies creates virtual interface system serving numbers of purposes.

If you love to play online games, laser keyboard is the best option you could have. Innovative virtual keyboard works on laser technology allowing people to sit and work at distant places from the screen. It brings comfort in your working style. You should search a web search engine to get more details about this highly useful product.

When you are using a laser keyboard, find a flat surface for placing it. This flat surface is considered as a temporary keyboard. The laser rays are projected on the flat surface projecting virtual keyboard on this surface. It is important to find a flat surface before placing the projection device in order to avoid disruptions. Projection device throwing laser light allow you to arrange the keyboard keys depending upon your convenience. This device even gives you the freedom to change color and rename these keys for making your work simple. Performing business tasks using an innovative keyboard becomes quite simple. Therefore, it is important to invest time and effort for finding highly efficient laser keyboard.

Where to seek for assistance?

Even if you are not familiar with the device, you can look for assistance of the retailer giving you instructions about the utility techniques and significance of this product. Make sure you approach reliable online store for making best deal and saving money by finding considerable discounts.