Here are a few other accessories that round out the connectivity of these computers. It has an IEEE 1394 port, a Firewire port, an S-Video port and four USB ports. Now, if that's not enough, the Inspiron 6000 also has a slot for Secure Digital Memory cards.
One of the most well known brands on the market are Dell laptops. Of course, this comes from a lot of advertising. But their quality goes a long way in explaining why they are so big in the IT world.
Let's take for example the new Dell Inspiron 6000. This is a high powered notebook that features the so-called Sonoma chipset which happens to be the latest Intel processor. Now, this chipset is strictly for mobile computers, so it is specifically designed to make sure your laptop works as optimally as possible. This involves the best in battery power life, the fastest graphics for gaming and multimedia, and wireless connectivity.
As far as wireless technology goes, these Dell laptops pack the latest technology. For example, they offer the optional Bluetooth for you business users out there. Of course then there is the standard 10/100 ethernet card and Wi-Fi access, so you can use your card in wireless hotpsots at home, in your local coffee shop ar at work.
Now, no matter how many digital cameras, music players, personal digital assistants (PDA's), or cell phones you have, your Dell Inspiron 6000 notebook will have enough access for all of them.
This computer also has a big brain! You can choose from either a 1.30 GHz Intel Celeron processor or the 1.60 GHz Pentium processor. As far as hard drives go, they also come in a selection of ranges from 30 GB to 80 GB. You can also pack the computer with optical drives like a DVD double layer burner or a writeable CD/DVD combo.
What does this mean for the layperson? All these numbers and abbreviations mean only one thing, no matter what you need your computer for, there are Dell laptops out there that are perfect for the task.
I have had nothing but Dell computers in my office as well as my home and I will continue to buy them and recommend them. Not just because they are excellently made computers, but because Dell stands behind their products in price as well
as service.
Just to give you an example of the Dell Service, I purchased a Dell Desktop last year for my office, one of many. This one computer did develop a problem with the DVD drive. I could read DVD's but I couldn't burn one. I called support they responded very quickly and while I was on the phone with them the technician had me run some tests. The DVD unit was found to be defective. The technician offered to send me a new unit by next day air or have a technician come to my office. I chose the latter, and the technician showed up within 24 hours replaced the unit and had me up running. Now for me I couldn't have asked for better or faster service.
Selasa, 31 Maret 2009
Senin, 30 Maret 2009
Laptop Computers and Wireless Lan
Desknotes are systems that can be alternately used as a standard desktop PC, but also offers portability into the bargain. Desknotes have the same power levels as a desktop PC and occupy much less room. Moreover, to keep expenses to a minimum, it is possible to install a LAN amongst the desknotes, where only one laptop need be connected to the Internet and access is shared to all the laptops connected to the network. This is also true for the devices connected to the central laptop; through LAN, all the laptops can use the same device. Thus, for small offices with three or more laptops, LAN (Local Area Network) is surely a boon.
LANs usually span a building or a small group of buildings. Connecting one LAN with many others through telephone lines and radio waves is called WAN (Wide Area Network). A Local Area Network that uses radio waves to communicate is called WLAN (Wireless Land Area Network). There are several advantages to WLANs. One is its flexibility. Radio waves can pass through walls of nearly any surface, and also do not require miles and miles of cables, thus offering a clutter-free work atmosphere. Wireless LAN can be almost invisible!
Another advantage is that WLANs are extremely easy to use. Most laptops are built in with WLAN capability. So all you need to do is plug in and make sure you have a wireless LAN card. WLANs are very tough. If one base becomes disconnected, it is possible to use another laptop as a base and can be shifted physically into the range of another WLAN. Prices are very low these days for WLAN, and it is no wonder the choice for home networks.
However, as nothing is perfect in this world, WLAN does carry a few disadvantages. Anyone can operate a laptop near a WLAN and hack into the stored wireless traffic. This makes safety an issue due to the loss of privacy. While radio waves can pass through almost any surface, too many obstacles in the path such as buildings can degrade the transmission. Another drawback is the data transfer speed. As many laptops share the same bandwidth, data transfer speeds are significantly lower in a WLAN. In addition to this, wireless data rates fall according to signal strength or interference.
Wireless LAN is convenient where mobility is required, and is the only choice in old buildings where cables cannot be installed. Companies usually provide wired connections for fixed offices, and wireless LAN for those users who have no fixed location. In the end, WLAN should be installed only after taking into account all factors regarding your office or home set up.
LANs usually span a building or a small group of buildings. Connecting one LAN with many others through telephone lines and radio waves is called WAN (Wide Area Network). A Local Area Network that uses radio waves to communicate is called WLAN (Wireless Land Area Network). There are several advantages to WLANs. One is its flexibility. Radio waves can pass through walls of nearly any surface, and also do not require miles and miles of cables, thus offering a clutter-free work atmosphere. Wireless LAN can be almost invisible!
Another advantage is that WLANs are extremely easy to use. Most laptops are built in with WLAN capability. So all you need to do is plug in and make sure you have a wireless LAN card. WLANs are very tough. If one base becomes disconnected, it is possible to use another laptop as a base and can be shifted physically into the range of another WLAN. Prices are very low these days for WLAN, and it is no wonder the choice for home networks.
However, as nothing is perfect in this world, WLAN does carry a few disadvantages. Anyone can operate a laptop near a WLAN and hack into the stored wireless traffic. This makes safety an issue due to the loss of privacy. While radio waves can pass through almost any surface, too many obstacles in the path such as buildings can degrade the transmission. Another drawback is the data transfer speed. As many laptops share the same bandwidth, data transfer speeds are significantly lower in a WLAN. In addition to this, wireless data rates fall according to signal strength or interference.
Wireless LAN is convenient where mobility is required, and is the only choice in old buildings where cables cannot be installed. Companies usually provide wired connections for fixed offices, and wireless LAN for those users who have no fixed location. In the end, WLAN should be installed only after taking into account all factors regarding your office or home set up.
Its Journey with Ink from Xerox
Xerox as it is known today was trademarked in 1948 when Haloid and Battelle Development Corp. announced the development of xerography.
Chester Carlson inventor of xerography founded the Haloid Company on April 18, 1935. The company manufactured and sold photographic paper! It was based in Rochester New York.
In the year 1942 Carlson received U.S. patent No. 2,297,691 on Oct. 6 for electrophotography, later called xerography, the technology that revolutionized the world of imaging.
The first ever copier- Model A or Ox Box, based on xerography was given to the world by Xerox in the year 1949! Today it manufactures printers for office and home use as well as high volume printers, wide format printers and digital printing presses and afcoarse all the supplies that go with these equipments! They also provide services such as document management, assessment and asset management services among a number of other services!
Xerox pioneered work on the carbon-based organic toner during the 1950’s and today it boasts of developing a chemically grown toner – Emulsion Aggregation, in short Xerox has been and still is the market leader in copiers, toners and Inks!
It is No.1 in digital production color and No. 2 in office color. Xerox also manufactures compatible cartridges and claims to be a high quality alternative to Hewlett-Packard cartridges!
Xerox manufactures and markets a range of monochrome and colored copiers, fax machines, printers and presses.
Technology:
Xerox Research Center Canada conducts fundamental and applied materials research in toners, inks, photoreceptors and specialty substrates to support xerographic and direct printing technologies.
Solid Ink
Solid ink remains in solid form until heated to a very specific temperature so that it turns to liquid, then instantly turns back to solid when printed. A precise stainless steel print head with tiny holes smaller than a human hair applies the solid ink to the printing media. The print head houses 1,236 nozzles jetting more than 30 million drops per second. The print head jets the ink to a heated drum where it remains in a malleable state that ensures precise transfer to the paper.
This reduces the amount of ink that is absorbed into the paper fibers and controls dot spread.
The brain behind such precise control is the Phaser controller, which is based on a 600 MHz processor and a high-speed 64-bit bus.
A solid ink printer consists of only three major components- the print head that applies ink to print drum, the print drum that transfers image to paper and the controller, which is the brain of the printer that converts data from the computer to information required to print the image on paper. Add a cabinet and a paper tray and you have a solid ink printer.
With print speeds up to 30 pages per minute, and first-page-out within six seconds, the solid ink printer can be three times faster than a comparably priced laser printer.
Advantages of solid ink printers is they give outstanding print quality, 90% less waste as compared to other competitive printers in the market, prints up to 16 pages on a single sheet saving paper and it is Energy Star compliant.
Emulsion Aggregation Toner
It is the breakthrough technology developed by Xerox Research Center Canada and patented by Xerox. This technology uses a chemical process to grow toner particles with well-defined shapes.
Extremely tiny particles of the components that make up toner are placed together in a water-based environment and allowed to bond, and then grow. This simplifies the control of the size and shape of toner particles. Once the particles reach their target size, they are removed from the growth environment. This growth process of completely organic matter requires fewer steps and consumes less energy, making it much more environmentally friendly.
One major advantage is that cost is not a limiting factor in manufacturing EA toner owing to the fact that there is no exponential relation between cost and toner particle size! Moreover, this in turn is due to very less energy consumption during the particle growth phase.
Chester Carlson inventor of xerography founded the Haloid Company on April 18, 1935. The company manufactured and sold photographic paper! It was based in Rochester New York.
In the year 1942 Carlson received U.S. patent No. 2,297,691 on Oct. 6 for electrophotography, later called xerography, the technology that revolutionized the world of imaging.
The first ever copier- Model A or Ox Box, based on xerography was given to the world by Xerox in the year 1949! Today it manufactures printers for office and home use as well as high volume printers, wide format printers and digital printing presses and afcoarse all the supplies that go with these equipments! They also provide services such as document management, assessment and asset management services among a number of other services!
Xerox pioneered work on the carbon-based organic toner during the 1950’s and today it boasts of developing a chemically grown toner – Emulsion Aggregation, in short Xerox has been and still is the market leader in copiers, toners and Inks!
It is No.1 in digital production color and No. 2 in office color. Xerox also manufactures compatible cartridges and claims to be a high quality alternative to Hewlett-Packard cartridges!
Xerox manufactures and markets a range of monochrome and colored copiers, fax machines, printers and presses.
Technology:
Xerox Research Center Canada conducts fundamental and applied materials research in toners, inks, photoreceptors and specialty substrates to support xerographic and direct printing technologies.
Solid Ink
Solid ink remains in solid form until heated to a very specific temperature so that it turns to liquid, then instantly turns back to solid when printed. A precise stainless steel print head with tiny holes smaller than a human hair applies the solid ink to the printing media. The print head houses 1,236 nozzles jetting more than 30 million drops per second. The print head jets the ink to a heated drum where it remains in a malleable state that ensures precise transfer to the paper.
This reduces the amount of ink that is absorbed into the paper fibers and controls dot spread.
The brain behind such precise control is the Phaser controller, which is based on a 600 MHz processor and a high-speed 64-bit bus.
A solid ink printer consists of only three major components- the print head that applies ink to print drum, the print drum that transfers image to paper and the controller, which is the brain of the printer that converts data from the computer to information required to print the image on paper. Add a cabinet and a paper tray and you have a solid ink printer.
With print speeds up to 30 pages per minute, and first-page-out within six seconds, the solid ink printer can be three times faster than a comparably priced laser printer.
Advantages of solid ink printers is they give outstanding print quality, 90% less waste as compared to other competitive printers in the market, prints up to 16 pages on a single sheet saving paper and it is Energy Star compliant.
Emulsion Aggregation Toner
It is the breakthrough technology developed by Xerox Research Center Canada and patented by Xerox. This technology uses a chemical process to grow toner particles with well-defined shapes.
Extremely tiny particles of the components that make up toner are placed together in a water-based environment and allowed to bond, and then grow. This simplifies the control of the size and shape of toner particles. Once the particles reach their target size, they are removed from the growth environment. This growth process of completely organic matter requires fewer steps and consumes less energy, making it much more environmentally friendly.
One major advantage is that cost is not a limiting factor in manufacturing EA toner owing to the fact that there is no exponential relation between cost and toner particle size! Moreover, this in turn is due to very less energy consumption during the particle growth phase.
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