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Archive for the ‘Hardware’ Category

Having used a desktop computers and notebook computers that had been officially supplied by the company where I was employed, there was no need to worry about what type of notebook computer or whatever configuration that was required in my work.

So when I finally had to purchase my own notebook computer for personal private use, I found myself facing a myraid of questions. Just what should I look out for when buying my own notebook computer?

First, I found I had to quantify my own needs for a notebook computer. Having quantified my needs, which was to do a lot of number crunching and to perform technical analysis and charting of stock prices online, I found that even low priced models could perform work that was demanded by my needs.

I was pleasantly surprised that my needs did not demand a high priced model.

Secondly, the notebook computer I required would need to be sufficiently light. In the process of identifying the notebook computer, I decided I did not need a subnotebook, as most notebook computers weigh between 5 to 7 kg, with a subnotebook weighing at 5 kg or less.

The standard notebook computer was sufficient for my needs coming with some wordprocessing software that was already installed as part of the package that comes with the computer and with Internet access capabilities. All I need was to install my specialized technical analysis program to monitor the stock prices.

At the same time, advances in notebook computer technology ensured that I had wireless technology and can hook up online at any hotspot outlet. This would allow me to have mobile wireless access anywhere I go. I could also use a pen drivefor additional mobile storage.
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Hewlett Packard’s tryst with ink took off when it acquired a company named F.L Mosley based in California in 1958. Mosley was manufacturing recorders and plotters for industrial applications such as continuous process monitoring systems, data loggers and the like in the 1950’s.

Hewlett Packard was the pioneer in imaging and printing technologies. It was the first in the market during the 1980’s to come up with inkjet and laser technology used in printers until date. Its first printer was the “ThinkJet” in 1984 based on the inkjet technology and later the “DeskJet” printer also based on inkjet technology and the “Laser” printer as the name suggests based on laser technology.

The Ink

Today inks are not just gooey fluids filled in cartridges to give you images on your print media. Specially engineered ink gives high quality prints-it has specially designed active agents and colorants that give rich color and fade resistance.

There is a difference between printer ink and toner – printer ink is a liquid that is applied to paper by pressure. Toner is a fine powder that is burned onto the paper through heat and laser guidance.

There are two types if ink – dye based and pigment based. The rest are a variation of these two basic types.

The Ink Cartridge

The printer cartridge nowadays is not only an object that holds ink but also a highly technical one that has an integrated circuit to control the quality of printouts. The printer ink cartridge is by far the most important consumable as far as its cost, type and replacement is concerned. Every printer model has its own specific ink cartridge.

Inkjet

The inkjet cartridge is a combination of speed and precision. Each ink nozzle in the cartridge fires up to 36,000 drops of ink per second to deliver crisp text and sharp images.
The Inkjet and DeskJet printers use this cartridge. They are ideal for home and personal use.

LaserJet

The Laser Jet cartridge comprises up to 70% of the total imaging system and therefore plays a key role in delivering quality prints. It uses a precision laser to draw the image giving clear sharp and precise prints. These are ideal for home as well as small to large businesses and workgroups.

Design Jet

These cartridges give uniform fills, sharply defined lines and crisp clear text across a wide range of durable printing applications. These cartridges are used for large format printing media such as trade show and event displays, posters and presentations, photo enlargements, architecture and engineering applications such as CAD/CAM.

Color Layering Technology

In color layering, a number of microscopic droplets of colors ranging from three to eight colors are combined and managed through hundreds of small nozzles in the cartridge. The result is a print of high quality with vibrant and realistic true to life images. This technology gives a wide range of colors up to millions.
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High definition TV tuners or HDTV tuners are designed to receive high definition programs by connecting to an external antenna. HDTV tuners will not only show movies and DVD’s at high definition, but will improve the viewing of normal TV. It is because of the improved definition or color and picture quality of DVD’s and programs that make HDTV tuners very popular with viewers.

Television sets often come with HDTV tuners already built into them, these are called integrated HDTV’s. If you are considering buying an external high definition TV tuner for your television, make sure that your TV set is HDTV compatible. A separate tuner may also be needed. This can be either a cable or satellite box for watching high definition programs.

Most people have heard that there is a mandate on televisions to make integrated HDTVs. This is not entirely correct. Certain televisions that are for sale after a certain date will be required to have built in tuners. The tuners required won’t be HDTV. The mandate is actually referring to ATSC tuners. It is not even necessary that TV’s be able to display HDTV resolutions without either an internal or external tuner. This new mandate will not apply to plasma and front projectors. The mandate will not take effect for some time. Until then there will be no change in television manufacture or tuners.
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This article was written to answer many of the most frequently asked questions on this topic. I hope you find this information helpful.

You have tried and tried to get your speakes to work. You have the sound card and the speakers; so what is the problem? The first step is to check the connections. Most people accidentally plug the speaker jack into the Line-in Jack of the sound card. Check to see if this is what you did. If you have amplified speakers, make sure that the power is on and mute is not.

Check and see if the speakers work properly before trying to troubleshoot your system. Do this by connecting the speakers to a music system or radio. If they do, the problem is definitely related to the system.

Check the volume levels in the system. Check the volume controller in the system tray and also open the advanced audio controls to make sure that there isn’t anything muted or at really low levels. Now use several multimedia applications to play various media files to insure that the problem is truly system related, and not limited to a particular application or file. If you find that only a certain application has the problem, such as Windows Media Player or Winamp, reinstall it.

If all this is to no avail, go to the system properties [Windows] + [Pause/Break] or right-click on My Computer and select Properties and in device manager make sure that sound card is installed properly. If you see a yellow exclamation mark, reinstall the drivers.
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