Technology Toolkit

The days of the dull gray or black laptops are numbered, now we are able to match our laptop to our outfits or choose our favourite colors with the addition of colorful laptops from many of the large computer companies. Pink laptops in particular are gaining popularity among women (and even a few men). It’s no surprise with the invent of those funky apple ipods and even more recently the release of their new color range, who wouldn’t want a laptop to match their ipod or even to show off your favourite color at your local cafe rather than the run-of-the-mill black or gray one, a shiny new pink laptop is the way to go.

Many of the large computer companies – Dell, Samsung, Asus, Sony to name a few – now offer laptops in various shades of pink. Dell has also added several color options (pink being one of them) to their sleek, high-performance laptops. The addition of color was a good idea; they have proven incredibly popular and everyone from customers to reviewers raves about them.

When you are looking to buy a new laptop, there are several things you need to consider.

Weight
Carrying a laptop around all day, can get hard on the back. So how mobile do you want to be? How much weight are you prepared to carry? An extremely lightweight laptop really limits your accessory options, but can be a godsend in other ways.

Size
Similar to weight, size is mainly an issue of comfort and mobility. The bigger the laptop, the more space you need to set up, the bigger a bag you’ll have to carry and juggle on the train, the more accessories and additional hardware you can fit. And, the bigger screen.

Screen Size
Screen size is probably the biggest determiner of laptop size. If, for reasons of vision problems, gaming addictions, or any other reason you need a large screen, well there isn’t much anyone can do about it. If on the other hand, you are comfortable with a small screen (and accompanying small graphics, fewer words per screen, and webpage scroll bars) then your options open up a great deal.

Peripherals
DVD-ROM, flash drive, extra disk drives, touch sensitive screen, and all the other fun extras that you can get may be what you want or need in a laptop. The trade off here is both weight, and price. These extras all weigh something, and can cost quite a bit. Compare your budget with your wish list and only include what is needed.

Memory, RAM and Other Stuff
What do you plan to do with your laptop? What programs you’re going to be running determine how much memory you’ll need. They also have a great deal to do with what type of video and sound card you want to look into. If you don’t plan on doing anything more then word processing and making spreadsheets, you can keep extras to a minimum. On the other hand, if you love to game, you’ve going to want to max out your memory, and everything else.

Price
Usually the greatest trade off is price. A laptop can run up to several thousand dollars. The more extras you get, the higher the price gets. I strongly suggest you set your budget before you start shopping. That way you know your limits before you start looking at options.

If you’re ready to start checking out laptops, there are quite a few things you need to consider. Take this information as a starting point to get you going, and start exploring your options.

Scanner is a device that optically scans images, printed text, handwriting, or an object, and converts it to a digital image. Common examples found in offices are variations of the desktop (or flatbed) scanner where the document is placed on a glass window for scanning.

Another category of scanner is digital camera scanners, which are based on the concept of reprographic cameras. Due to increasing resolution and new features such as anti shake, digital cameras have become an attractive alternative to regular scanners.

There are lots more other varieties like drum, flatbed, film and hand scanners. Most scanners use charge coupled device and contact image sensor to sense image. New scanners are used to combine 3d objects with 2d objects on the screen by scanning 3d object and modeling that object with another.

Animation industry makes great use of this picture to create new 3d object just by scanning real 3d object into scanner. This saves valuable time required for other important steps in creation or building of any animation film or movie.

Due to increasing resolution and new features such as anti shake, digital cameras have become an attractive alternative to regular scanners. While still having disadvantages compared to traditional scanners, digital cameras offer advantages such as speed, portability, gentle digitizing of thick documents without damaging the book spine.

In drum scanner, photomultiplier tube is used which scans different positions of an image simultaneously. Drum scanner scans all image information with this PMT tube, rather than CCD array which is found in flatbed scanners.

Light from the original artwork is split into separate red, blue, and green beams in the optical bench of the scanner. Drum scanner is capable of scanning both reflective and transitive images. A good quality flatbed scanner has capability to produce high quality reflective artwork. Therefore, drum scanner are now rarely used to scan those high quality artwork.

Positive slides or negative film can be scanned through Film scanner which is dedicated for the same purpose. Usually, uncut film strips of up to six frames, or four mounted slides, are inserted in a carrier, which is moved by a stepper motor across a lens and CCD sensor inside the scanner.

Today, Scanner art has got great advantage in various fields. Scanner art is art made by placing objects on a flatbed scanner and scanning them. Because scanner uses little depth of field, it is matter of debate as to whether it is giving kind of digital photography or not.

Computer sales have never been so good. Despite the trouble being faced by many high street stores it seems that the sale of computers and computer equipment is bucking the trend. Companies like Dell and Hewlett Packard are as popular as ever and Apple has never seen such interest in its range of iMacs.

The demand for laptop computers has also grown in recent months as the need to work smarter becomes more important. Making every minute of every day count is now as much a part of the mindset of any successful business person as keeping up with the latest developments or being aware of what your competitors are doing.

The availability of wireless broadband has fuelled the surge in demand for laptops and portable devices. With so many people having to go that extra mile for a client or put in longer hours the need to access emails, write reports and surf the net while out of the office environment is essential. Money invested in broadband packages and computer equipment is money well spent in the minds of busy executives. It’s like buying freedom to do tasks wherever you are at any given time.

But what happens when you have to have something to show for all your efforts? Something you can physically hand over to someone that they can take away with them? When buying new computer equipment you should factor in for a printer as well, there are plenty on the market. Reading through the wealth of computer printer reviews you’ll find there are plenty of things to consider.

Don’t be fooled into accepting what you are offered first of all. Many dealers now package their laptop and desktop computers into bundles that come with a printer, extra software, cases, even a digital camera. If you’re looking at these types of offer make sure they are all they say they are. You could be paying for something you’ll never use or, worse still, something that you’ll end up replacing after a few weeks because it doesn’t suit you r needs.

Next to the actual computer, whether that’s a laptop or desktop, the next most important item you need to buy is a printer. Everyone needs to print out things a some time both for work and leisure. It could be letters, photographs or web pages but there will be an occasion when storing something on a hard drive is not enough. Reading as many printer reviews as possible will help you chose the printer that is right for you but, in case you don’t know where to start, here’s some advice.

What printer should I go for? – You’ll chose one of two options; inkjet or laser. There is also a third, dot matrix, but they have had there time and are being gradually phased out. It won’t be long before they are obsolete and even now you won’t find a mention of them in many printer reviews.

Colour Inkjet – These are the cheapest option. If you need your printer to print out colour documents and photos this is probably the one to suit you. The main drawback is that the cost of replacement ink is quite high; something printer reviews often fail to mention.

Inkjet printers work buy spraying ionized ink onto a surface; paper. They can produce high quality prints which make them suitable for printing photos. A printing resolution of 300dpi (dots per inch) is adequate, anything higher means better quality. This information should all be available in most printer reviews.

Laser – If you’re dealing with text documents then a laser printer is probably best although the running costs are higher than an inkjet. It uses toner rather than ink and a combination of heat and pressure to transfer the toner to paper. The main advantage of a laser printer is that it can work to a higher resolution, as much as 1,200dpi, although many inkjet printers can also achieve this. Check the specifications in printer reviews and compare the resolution. The higher the resolution the better the print quality.

Laser printers save you a lot of money on running costs when compared to inkjet or solid ink printers. However to get these savings you will need to print reasonable volume of documents.

Its safe to say if you print documents everyday you will definitely save money sooner rather than later if you buy a laser printer so read on and you will make an informed purchase. The best way to decide what laser printer is right for you is to determine the volume of printing you intend to do.

If you think you will be printing over a 1000 a month then you might look for some of the more heavy duty laser printers. Higher volume printers may cost more to buy but they really do save you money in the long run if you keep them busy.

If you just have a home or small office and want to save some money on printing and get a more reliable printer then I recommend you have a look at many authorized online store that cheaply provides good quality laser printer.

Any small laser printer is very cheap to buy and is not expensive to run for reasonably low volume printing. Remember even low volume laser printing is much higher than the volume most people would use an inkjet for.

Price of any laser printer can be matter of choice before you buy any high quality printer. Laser printing prices have been falling rapidly as quality and reliability improve. Now you can get a good laser printer for the cost of a high end inkjet printer.

With laser printer prices falling multipurpose printers have also decreased in cost. Right now you can get a great little color inkjet for under $80. As long as you do not print huge amounts a little printer like this will be cheap to run.

With so many people owning digital cameras these days the popularity of specialized photo laser printers is also increasing. However a great photo printer is usually not the best design for text and graphics on regular photocopier paper.

A few years ago color lasers were way out of the price range for small businesses and consumers. However as always technology advances and the prices of color laser printing has dropped dramatically over the last few years.

Color lasers made by plenty of manufactures are all competing for your dollar, so there has never been a better time to buy. However, you must look out for best and cheap one product before you are going to purchase.

Ink jet printers operate by propelling variably sized droplets of liquid or molten material called ink onto almost any sized page. They are the most common type of computer printer for the general consumer due to their low cost, high quality of output, capability of printing in vivid color, and ease of use.

Like most modern technologies, the present day ink jet has built on the progress made by many earlier versions. Many contributors can claim a substantial share of the credit for the development of the modern ink jet.

There are various types of ink jet printer available worldwide. Thermal ink jets are most commonly used model in printing. Most consumer ink jet printers use print cartridges with a series of tiny electrically heated chambers constructed by photo lithography.

To produce an image, the printer runs a pulse of current through the heating elements causing a steam explosion in the chamber to form a bubble, which propels a droplet of ink onto the paper. The inks surface tension as well as the condensation and thus contraction of the vapor bubble, pulls a further charge of ink into the chamber.

There are several other technologies. One of the industrial dedicated printer technology is Piezoelectric ink jet. Most commercial and industrial ink jet printers use a piezoelectric material in an ink filled chamber behind each nozzle instead of a heating element.

When a voltage is applied, the piezoelectric material changes shape or size, which generates a pressure pulse in the fluid forcing a droplet of ink from the nozzle. This is essentially the same mechanism as the thermal ink jet but generates the pressure pulse using a different physical principle.

One more advanced printing method is continuous ink jet. The continuous ink jet method is used commercially for marking and coding of products and packages. The idea was first patented in 1867, by Lord Kelvin and the first commercial devices.

In continuous ink jet technology, a high pressure pump directs liquid ink from a reservoir through a gun body and a microscopic nozzle, creating a continuous stream of ink droplets via the Plateau Rayleigh instability.

In piezoelectric ink jet type, crystal creates an acoustic wave as it vibrates within the gun body and causes the stream of liquid to break into droplets at regular intervals.

The ink droplets are subjected to an electrostatic field created by a charging electrode as they form, the field varies according to the degree of drop deflection desired. This results in a controlled, variable electrostatic charge on each droplet.