(Pay per click) Notebook or Desktop Computer — Which One Should You Select?
No commentsBy Erwin Pope
On TV and in the movies, we see a lot of portable computers being used in homes and offices. Does that mean that’s the trend? Is that what you should get?
Portable computers cost more, so unless you really have the need for one, you get a lot more computer for your money with a regular desktop PC. The main thing is portability. If you need a portable computer, get a laptop. (”Laptop,” “portable,” and “notebook” all refer to the same thing, by the way). Otherwise, a desktop computer is a better buy, and better ergonomically.
The Price Difference
You might wonder why laptops cost more than desktop computers with comparable features and power. That is largely because it is more expensive to manufacture laptops and their parts. For portable computer components, factors such as compactness, the amount of heat they generate, their weight, and power consumption are more important than they are for desktops. Those factors add to their manufacturing costs.
Space Requirements
While laptops are certainly compact, a desktop computer with a flat panel monitor can take up almost as little space. While called a “desktop” computer, the computer itself is most often kept on the floor. That leaves just the monitor, keyboard and mouse on the desk, which is really very similar in footprint to a notebook computer.
A great way to further reduce the space taken up on the desktop computer is get a keyboard drawer to hold the keyboard and mouse. That way, they slide out of the way under the top of the desk when they aren’t needed.
Be Mindful of Ergonomics
Ergonomics is the science of designing and arranging things so that people can interact with them more comfortably and safely. The basic ergonomic principals for computer use tell us that, 1) the keyboard should be as close to your lap level as possible (assuming you touch-type), 2) the monitor should be about arm’s length in front of you, and 3) the top of the monitor should be at about your eye level. Try achieving that with a laptop computer! Two words: im-possible.
It is obvious then, that a desktop computer is much better ergonomically than a laptop is. For prolonged use, especially, you’re much better off with a desktop computer.
And Don’t Forget Usability
Another aspect of ergonomics is usability. Because of size constraints, laptops also are lower on the usability scale than desktop PCs are. For one thing, laptop keyboards lack the separate groupings of the different sets of keys with space between them. For another, there are fewer keys on a laptop’s keyboard, so some of them have to perform double duty. On a standard keyboard, you don’t have to deal with that.
Screen Resolution
Computer monitors — the bulky ones, anyway — can be set at different resolutions. In other words, you can change the fineness of the image on the screen. The range is typically 640×480 — that is 640 pixel across and 480 pixels up and down — to 800×600, 1024×768, or even higher. At 640×480, the icons and such appear quite large; at 1024×768, they are substantially smaller. The most common resolutions today for desktop computers are 800×600 and 1024×768.
Something They Don’t Tell You
Laptop displays, on the other hand, have a fixed, or native, resolution. You can change the setting, but then the images and text don’t look good. While people tend to think that bigger numbers are better, a higher screen resolution may not work as well for you. It may make everything too small to see comfortably.
Remember, the laptop’s screen is smaller that a desktop’s. While a typical desktop computer screen is 17″ or so a laptop’s is usually in the range of 12″ to 15.” That is a big difference. Make sure you can see everything clearly before choosing a high-resolution laptop.
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Inside View On All Printers
By Erwin Pope
Printers have certainly come a long way since the inception of the character and and dot matrix printers.
These ancient products (ancient in technical terms being as few as 10-15 years) were what are known as impact printers, simply because they needed to make a physical connection with the paper in order to achieve the ink-on-paper result.
Dot matrix printers came equipped with a group of pins that touched a ribbon which then connected with paper to produce the finished product. Character printers, which worked on the same principle as electric typewriters, used a bar or ball whose surface was embossed with all the characters you now see on any keyboard. These characters made contact with the ribbon, which in turn made contact with the paper.
Today we use non-impact printers - those that do not make physical contact with the paper to create the papered reproduction. The most prevalent for home or small office use is the inkjet printer - an economical choice for all but the most serious graphic arts requirements.
An inkjet printer produces the images and type it delivers from computer to paper by means of miniscule drops of ink. So miniscule, in fact, that a human hair would seem big by comparison. Standard ink drops of an inkjet printer have a diameter range of 50-60 microns. Arranged very precisely, these ink drops come in various resolutions (the higher the resolution, the clearer and more life like the output.) while 800×600 dpi (dots per inch) is a typical SOHO (small office home office) resolution producing quite adequate print quality, an inkjet printer can offer resolutions as high as 1440×720 dpi. Adding color to the mix can produce images nearly as high in quality as a laser printer product.
There are five basic parts to an inkjet printer: the print head assembly, the paper feed assembly, circuitry control, power supply, and printer ports.
The print head assembly is the heart of the printer workings. It’s what brings the ink to paper by means of a row of nozzles. The print head may be part of the inner workings of a printer cartridge, or they may be separate parts. Cartridges are responsible for delivering color and shading. Most inkjet printers made nowadays offer color printing. Some may require as many as three distinct cartridges, but generally at least two - one black, one color. The motor is part of the print head assembly as well. It’s the part that enables the ink and cartridges to move across the paper and produce the hard copy. It also keeps the cartridge stable when not in use.
The paper feed assembly includes the paper tray, which holds the paper ready for a printing request, and the rollers, which deliver the paper to the ink when a printing job is requested.
The power supply is simple - it’s what gets the electricity to your printer so that it can do its job. Printer circuitry controls take the message from your keyboard and mouse and deliver it to the printer so that the requested hard copy can be produced. Printer ports, also referred to as interface ports, much like a telephone jack, enable the peripheral (the printer) to talk to the computer. While in older models parallel ports were the norm, the newest printer models connect via USB ports, which require a special USB cord.
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