Monthly Archives: January 2012

Computer Printers – Cut Your Costs

When you buy a new computer it almost always comes with a free printer. The free printer is almost always an inkjet model. The printer manufacturer gives these to the computer manufacturer for a knock down price as a loss leader. What most people never consider is the cost of replacing the inkjet cartridges in a few weeks time, and on a monthly basis after that.

The actual laser printer has now fallen to a price where it is comparable to an inkjet printer, even for home use. Many families have 2 printers, an inkjet, for color work, and a laser as the default printer.

Even if you have to pay for a laser printer its running costs will work out a lot less than the free inkjet. Once people take the cost of ink into account a monotone laser printer is only about a third the annual costs of an inkjet. The best thing you can do is to set up your laser printer and the free inkjet. Make sure the laser machine is set as the default printer. Unplug the inkjet to prevent it being used unnecessarily.

What about refilling the inkjet cartridges? Forget it, the quality of the refilled is just unacceptable.

Remanufactured laser cartridges are worth considering, especially for every day and internal use like as an Internet printer. Laser toner cartridges are highly engineered for precision use. Yet many people just throw them away, rather than sending them away for re-use. Re-use is always less costly to our environment than recycling. Re-use involves replacing worn parts and refilling the cartridge with toner powder. Recycling involves, breaking up the cartridge and melting the various plastics down separately.

There are many companies offering this service and once you find one that provides quality remanufactured cartridges for your model of printer, you would be well advised to stick with that company. You can always find cheap, allegedly remanufactured laser cartridges, but these are just refilled and often have none of the worn components replaced.

Insist on a “money back if not satisfied” guarantee.

Commercial Printing Methods

What are my choices for printing my catalog? What are the different types of catalog printing and which ones are the best for my catalog? In this article I will go over several types of catalog printing to help you answer those questions.

Let’s start with the different types of presses that are used for printing catalogs.

Web Press: This is the most commonly used type of press for printing catalogs. It uses a roll of paper to make the catalog printing process faster. There are two types of web press. The Heat-Set Web Press and the Cold-Set Web Press.

Heat-Set Web Press: The heat-set web press has a built-in heating unit that dries the ink. This gives the press the ability to produce a high volume of catalogs quickly. Another advantage it has is It can handle printing your catalog on coated and high-gloss paper. A heat-set web press is also the best choice if your catalog needs to have high quality photographs and images.

Heat-set web presses are good for large catalog printing jobs or where the cost of setup is irrelevant. It is a huge press and takes a staff of people to set it up for one catalog printing job. This is where you run into setup fees from your printer. On a large run, say 10,000 copies or more, the setup fee when divided by the number of catalogs is not too bad. If you were to apply those same setup fees to a run of only 1000 copies, the cost per catalog printed might be out of your budget requirements.

Cold-Set Web Press: This type of web press does not have a heating unit. The ink must be air-dried. The cold-set web press is used with text stock paper where the ink will absorb into the paper of your catalog. It will not print on coated and glossy paper. In addition to that, the photos and images for your catalog will not be quite as sharp as those printed on a heat-set web press.

However, if you are printing less than 10,000 catalogs or your primary needs are not the sharpness of the images, a cold-set web press might be the right choice for you. It will save you money over the heat-set method.

Sheet-Fed Press: Another good choice if you are not printing a high volume of catalogs is the sheet-fed press. The paper for your catalog is cut to size before the print run. One of the advantages a sheet-fed press has over the cold-set web press is that your images and photos will come out a much higher quality. Both are good for small runs, so if you are only going to print less than 10,000 catalogs and your artwork is important to you, the sheet-fed press might be the best way to go.

The sheet-fed press can also use various weights of paper, giving it another advantage over a cold-set web press. The downside is that sheet-fed presses run much slower. That is why they are usually only selected for a small run of catalogs or catalogs that require high quality graphics.

Digital Printing: This is much newer than the other methods described in this article, but it will become mainstream. This is where the images for printing your catalog are sent directly from the computer to the press. There is no film involved. All of the images are digital. This also eliminates the need for plates. Finding a printer for your catalog that uses this method might be difficult though since it has not been widely adopted yet.

The advantages of digital printing are fast-turnaround time and for producing high quality full color catalogs. The downside is that you may be limited in your choice of paper types.

Electrostatic printing: Only good for very short runs of catalog printing jobs. This is similar to photocopying documents in that it uses toner from a drum to thermally fuse your text and images to the paper.

Embossing: This catalog printing method uses a die your printer makes according to your design. It makes an impression or raises the image or letters onto the page.

Engraving: This is the catalog printing method that produces the highest quality images. You would only use this on the covers unless cost is not a factor. With engraved images, you can run your finger along the edge and fell that it has been indented or raised.

Gravure: This method of printing is used to produce a high volume of quality catalogs. It is much more expensive than other methods, but it is the best way to produce high quality catalogs.

Letterpress: This method of catalog printing goes back to the 15th century. It uses a rubber stamp like process. The images or text are raised on the stamp and ink is applied and the pages are stamped.

Offset lithography: This is a common catalog printing method with little setup time and one that is very cost effective. It’s also good for printing on textured paper. It uses less ink than other methods as well.

I hope this has been a helpful guide to the different printing methods you can choose for your catalog. Keep in mind that every printer you go to will not be able to offer you all of these methods. Each printer buys the equipment best suited to his or her business. So if you are set on a particular type of catalog printing you may have to shop around to find a printer who uses your method.

Phone Radiation Rating at end of 2009

Are you user of mobile phone  who feel the hazardous cell phone radiation  to health? Maybe the following list will be useful for you. Claims about the phone radiation is not fully proven, both which claim the cell phone radiation harmful to health or the health benefits.
The following ratings data quoted from the findings about the amount of radiation emitted by mobile devices from the Environmental Working Group:
  1. High Radiation Mobile Phone:
  2. Blackberry Bold 9700 AT&T, T-Mobile,1.55 W/kg
  3. Motorola Droid Verizon Wireless, 1.50 W/kg
  4. LG Chocolate Touch (VX8575) Verizon Wireless,1.46 W/kg
  5. HTC Nexus One by Google T-Mobile, 1.39 W/kg
  6. Apple iPhone 3G S AT&T, 1.19 W/kg Samsung Instinct HD (SPH-M850) Sprint,1.16 W/kg
  7. Motorola CLIQ with MOTOBLUR T-Mobile,1.10 W/kg
  8. Samsung Mythic (SGH-A897) AT&T,1.08 W/kg
  9. Pantech Impact AT&T, 0.92 W/kg
  10. Motorola Brute i680, Sprint, 0.86 W/kg
Low Radiation Mobile Phone:
  1. Sanyo Katana II [Kajeet]
  2. Samsung Rugby (SGH-a837) [AT&T]
  3. Blackberry Storm 9530 [Verizon Wireless]
  4. Samsung I8000 Omnia II [Verizon Wireless]
  5. Samsung Propel Pro (SGH-i627) [AT&T]
  6. Samsung SGH-t229 [T-Mobile]
  7. Helio Pantech Ocean [Virgin Mobile]
  8. Sony Ericsson W518a Walkman [AT&T]
  9. Samsung SGH-a137 [AT&T, AT&T GoPhone]
  10. LG Shine II [AT&T]

www.pinigai.info

iPhone?? Yes It is..

In January 2007, Steve Jobs introduced the Apple iPhone during his keynote address at the Macworld Conference and Expo. In its first appearance onscreen and in Jobs’s hand, the phone looked like a sleek but inanimate black rectangle.
Then, Jobs touched the screen. Suddenly, the featureless rectangle became an interactive surface. Jobs placed a fingertip on an on-screen arrow and slid it from left to right. When his finger moved, the arrow moved with it, unlocking the phone. To some people, this interaction between a human finger and an on-screen image — and its effect on the iPhone’s behavior — was more amazing than all of its other features combined.
And those features are plentiful. In some ways, the iPhone is more like a palmtop computer than a cellular phone. As with many smartphones, you can use it to make and receive calls, watch movies, listen to mu­sic, browse the Web, and send and receive e-mail and text messages. You can also take pictures and video (using an iPhone 3GS) with a built-in camera, import photos from your computer and organize them all using the iPhone’s software.
In 2008, Apple introduced the second generation iPhone. This iPhone can operate on third-generation (3G) cellular networks and has a GPS receiver. The iPhone also lets you view map and satellite data from Google Maps, including overlays of nearby businesses. Owners of the original iPhone got the opportunity to upgrade the software on their phones. The 2.0 software gives the old phones new functions, but without the GPS receiver or 3G network capability.
In 2009, Apple launched the iPhone 3GS. The newest iPhone models have more storage capacity than earlier iPhones. They also have a better camera that’s capable of taking still shots and video at 30 frames per second. Another new feature is a compass, which comes in handy when you need to find your way through unfamiliar territory. Also in 2009 came iPhone OS 3.0, which offered many improvements, such as the ability to cut and paste.
A modifie d version of the Macintosh OS X operating system used on Apple desktop and laptop computers lets you interact with all of these applications. It displays icons for each application on the iPhone’s screen. It also manages battery power and system security. The operating system synchs the phone with your computer, a process that requires a dock much like the one used to synch an iPod. It also lets you multitask and move through multiple open applications, just like you can on a laptop or desktop computer.

In January 2007, Steve Jobs introduced the Apple iPhone during his keynote address at the Macworld Conference and Expo. In its first appearance onscreen and in Jobs’s hand, the phone looked like a sleek but inanimate black rectangle.
Then, Jobs touched the screen. Suddenly, the featureless rectangle became an interactive surface. Jobs placed a fingertip on an on-screen arrow and slid it from left to right. When his finger moved, the arrow moved with it, unlocking the phone. To some people, this interaction between a human finger and an on-screen image — and its effect on the iPhone’s behavior — was more amazing than all of its other features combined.
And those features are plentiful. In some ways, the iPhone is more like a palmtop computer than a cellular phone. As with many smartphones, you can use it to make and receive calls, watch movies, listen to mu­sic, browse the Web, and send and receive e-mail and text messages. You can also take pictures and video (using an iPhone 3GS) with a built-in camera, import photos from your computer and organize them all using the iPhone’s software.

In 2008, Apple introduced the second generation iPhone. This iPhone can operate on third-generation (3G) cellular networks and has a GPS receiver. The iPhone also lets you view map and satellite data from Google Maps, including overlays of nearby businesses. Owners of the original iPhone got the opportunity to upgrade the software on their phones. The 2.0 software gives the old phones new functions, but without the GPS receiver or 3G network capability.
In 2009, Apple launched the iPhone 3GS. The newest iPhone models have more storage capacity than earlier iPhones. They also have a better camera that’s capable of taking still shots and video at 30 frames per second. Another new feature is a compass, which comes in handy when you need to find your way through unfamiliar territory. Also in 2009 came iPhone OS 3.0, which offered many improvements, such as the ability to cut and paste.

A modifie d version of the Macintosh OS X operating system used on Apple desktop and laptop computers lets you interact with all of these applications. It displays icons for each application on the iPhone’s screen. It also manages battery power and system security. The operating system synchs the phone with your computer, a process that requires a dock much like the one used to synch an iPod. It also lets you multitask and move through multiple open applications, just like you can on a laptop or desktop computer.

Let’s Know What is Smartphone

Think of a daily task, any daily task, and it’s likely there’s a specialized, pocket-sized device designed to help you accomplish it. You can get a separate, tiny and powerful machine to make phone calls, keep your calendar and address book, entertain you, play your music, give directions, take pictures, check your e-mail, and do countless other things. But how many pockets do you have? Handheld devices become as clunky as a room-sized supercomputer when you have to carry four of them around with you every day.
A smartphone is one device that can take care of all of your handheld computing and communication needs in a single, small package. It’s not so much a distinct class of products as it is a different set of standards for cell phones to live up to. This article explores what makes a cell phone a smartphone, how the idea came about and what you can do with it.
Unlike many traditional cell phones, smartphones allow individual users to install, configure and run applications of their choosing. A smartphone offers the ability to conform the device to your particular way of doing things. Most standard cell-phone software offers only limited choices for re-configuration, forcing you to adapt to the way it’s set up. On a standard phone, whether or not you like the built-in calendar application, you are stuck with it except for a few minor tweaks. If that phone were a smartphone, you could install any compatible calendar application you like.
Since cell phones and PDAs are the most common handheld devices today, a smartphone is usually either a phone with added PDA capabilities or a PDA with added phone capabilities. Here’s a list of some of the things smartphones can do:
  • Send and receive mobile phone calls – some smartphones are also WiFi capable
  • Personal Information Management (PIM) including notes, calendar and to-do list
  • Communication with laptop or desktop computers
  • Data synchronization with applications like Microsoft Outlook and Apple’s iCal calendar programs
  • E-mail
  • Instant messaging
  • Applications such as word processing programs or video games
  • Play audio and video files in some standard formats
Future applications promise to be even more impressive. For example, the Nokia 6131 is a phone utilizing near field communication (NFC) to allow the phone to act as a wireless credit card. The phone uses a two-way communication system to transfer payment information to pads at certain retail stores. Currently, it’s still in the trial phase of development.

Let’s Know About 3G

3G stands for “third generation” — this makes analog cellular technology generation one and digital/PCS generation two. 3G technology is intended for the true multimedia cell phone — typically called smartphones — and features increased bandwidth and transfer rates to accommodate Web-based applications and phone-based audio and video files.
3G comprises several cellular access technologies. The three most common ones as of 2005 are:
  • CDMA2000 – based on 2G Code Division Multiple Access (see Cellular Access Technologies)
  • WCDMA (UMTS) – Wideband Code Division Multiple Access
  • TD-SCDMA – Time-division Synchronous Code-division Multiple Access
3G networks have potential transfer speeds of up to 3 Mbps (about 15 seconds to download a 3-minute MP3 song). For comparison, the fastest 2G phones can achieve up to 144Kbps (about 8 minutes to download a 3-minute song). 3G’s high data rates are ideal for downloading information from the Internet and sending and receiving large, multimedia files. 3G phones are like mini-laptops and can accommodate broadband applications like video conferencing, receiving streaming video from the Web, sending and receiving faxes and instantly downloading e-mail messages with attachments.

Let’s Know Cell Phone Network Technologies: 2G (Part 2)

TDMA
TDMA is the access method used by the Electronics Industry Alliance and the Telecommunications Industry Association for Interim Standard 54 (IS-54) and Interim Standard 136 (IS-136). Using TDMA, a narrow band that is 30 kHz wide and 6.7 milliseconds long is split time-wise into three time slots.
Narrow band means “channels” in the traditional sense. Each conversation gets the radio for one-third of the time. This is possible because voice data that has been converted to digital information is compressed so that it takes up significantly less transmission space. Therefore, TDMA has three times the capacity of an analog system using the same number of channels. TDMA systems operate in either the 800-MHz (IS-54) or 1900-MHz (IS-136) frequency bands.
GSM
TDM A is also used as the access technology for Global System for Mobile communications (GSM). However, GSM implements TDMA in a somewhat different and incompatible way from IS-136. Think of GSM and IS-136 as two different operating systems that work on the same processor, like Windows and Linux both working on an Intel Pentium III. GSM systems use encryption to make phone calls more secure. GSM operates in the 900-MHz and 1800-MHz bands in Europe and Asia and in the 850-MHz and 1900-MHz (sometimes referred to as 1.9-GHz) band in the United States. It is used in digital cellular and PCS-based systems. GSM is also the basis for Integrated Digital Enhanced Network (IDEN), a popular system introduced by Motorola and used by Nextel.
GSM is the international standard in Europe, Australia and much of Asia and Africa. In covered areas, cell-phone users can buy one phone that will work anywhere where the standard is supported. To connect to the specific service providers in these different countries, GSM users simply switch subscriber identification module (SIM) cards. SIM cards are small removable disks that slip in and out of GSM cell phones. They store all the connection data and identification numbers you need to access a particular wireless service provider.
Unfortunately, the 850MHz/1900-MHz GSM phones used in the United States are not compatible with the international system. If you live in the United States and need to have cell-phone access when you’re overseas, you can either buy a tri-band or quad-band GSM phone and use it both at home and when traveling or just buy a GSM 900MHz/1800MHz cell phone for traveling. You can get 900MHz/1800MHz GSM phones from Planet Omni, an online electronics firm based in California. They offer a wide selection of Nokia, Motorola and Ericsson GSM phones. They don’t sell international SIM cards, however. You can pick up prepaid SIM cards for a wide range of countries at Telestial.com.
CDMA
CDMA takes an entirely different approach from TDMA. CDMA, after digitizing data, spreads it out over the entire available bandwidth. Multiple calls are overlaid on each other on the channel, with each assigned a unique sequence code. CDMA is a form of spread spectrum, which simply means that data is sent in small pieces over a number of the discrete frequencies available for use at any time in the specified range.
All of the users transmit in the same wide-band chunk of spectrum. Each user’s signal is spread over the entire bandwidth by a unique spreading code. At the receiver, that same unique code is used to recover the signal. Because CDMA systems need to put an accurate time-stamp on each piece of a signal, it references the GPS system for this information. Between eight and 10 separate calls can be carried in the same channel space as one analog AMPS call. CDMA technology is the basis for Interim Standard 95 (IS-95) and operates in both the 800-MHz and 1900-MHz frequency bands.
Ideally, TDMA and CDMA are transparent to each other. In practice, high-power CDMA signals raise the noise floor for TDMA receivers, and high-power TDMA signals can cause overloading and jamming of CDMA receivers.
2G is a cell phone network protocol. Click here to learn about network protocols for Smartphones.
Now let’s look at the distinction between multiple-band and multiple-mode technologies.

Let’s Know Cell Phone Network Technologies: 2G (Part 1)

There are 3 common technologies used by 2G cell-phone networks for transmitting information (we’ll discuss 3G technologies in the next article):
  • Frequency division multiple access (FDMA)
  • Time division multiple access (TDMA)
  • Code division multiple access (CDMA)
Although these technologies sound very intimidating, you can get a good sense of how they work just by breaking down the title of each one.
The first word tells you what the access method is. The second word, division, lets you know that it splits calls based on that access method.
  • FDMA puts each call on a separate frequency.
  • TDMA assigns each call a certain portion of time on a designated frequency.
  • CDMA gives a unique code to each call and spreads it over the available frequencies.
The last part of each name is multiple access. This simply means that more than one user can utilize each cell.
FDMA
FDMA separates the spectrum into distinct voice channels by splitting it into uniform chunks of bandwidth. To better understand FDMA, think of radio stations: Each station sends its signal at a different frequency within the available band. FDMA is used mainly for analog transmission. While it is certainly capable of carrying digital information, FDMA is not considered to be an efficient method for digital transmission.

(to be continued)

Let’s Know about Cell Phones Frequencies

In the dark ages before cell phones, people who really needed mobile-communications ability installed radio telephones in their cars. In the radio-telephone system, there was one central antenna tower per city, and perhaps 25 channels available on that tower. This central antenna meant that the phone in your car needed a powerful transmitter — big enough to transmit 40 or 50 miles (about 70 km). It also meant that not many people could use radio telephones — there just were not enough channels.
The genius of the cellular system is the division of a city into small cells. This allows extensive frequency reuse across a city, so that millions of people can use cell phones simultaneously.
A good way to understand the sophistication of a cell phone is to compare it to a CB radio or a walkie-talkie.
  • Full-duplex vs. half-duplex – Both walkie-talkies and CB radios are half-duplex devices. That is, two people communicating on a CB radio use the same frequency, so only one person can talk at a time. A cell phone is a full-duplex device. That means that you use one frequency for talking and a second, separate frequency for listening. Both people on the call can talk at once.
  • Channels – A walkie-talkie typically has one channel, and a CB radio has 40 channels. A typical cell phone can communicate on 1,664 channels or more!
  • Range – A walkie-talkie can transmit about 1 mile (1.6 km) using a 0.25-watt transmitter. A CB radio, because it has much higher power, can transmit about 5 miles (8 km) using a 5-watt transmitter. Cell phones operate within cells, and they can switch cells as they move around. Cells give cell phones incredible range. Someone using a cell phone can drive hundreds of miles and maintain a conversation the entire time because of the cellular approach.
In a typical analog cell-phone system in the United States, the cell-phone carrier receives about 800 frequencies to use across the city. The carrier chops up the city into cells. Each cell is typically sized at about 10 square miles (26 square kilometers).
Each cell has a base station that consists of a tower and a small building containing the radio equipment. We’ll get into base stations later. First, let’s examine the “cells” that make up a cellular system.

The Latest Product From Gogoorder – Revolving Laptop

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you can also chat with your friends on 3G network on the netbook. these artworks also come with 1. 3 million Pixels camera,which can support video calling. HD graphics card allows you to enjoy high-quality audio and video programs anytime, anywhere. And what is the hottest selling recently on Gogoorder. com? Here is the latest model of netbook on Gogoorder. com Netbook 10. 2 ‘Revolving Touch screen Mini Laptop Notebook Wifi 1. 6GHz CPU/1G DDR2 RAM/160G This mini laptop comes with intel Atom processor, touchSmart TFT screen,fashion design of hand free writing. The mosts attractive highlight of iut is rotational deformation screen design, You can rotate the screen in all aspects(nearly 360 degrees),which means you can use it even like IPAD! The Mini Netbook is equipped with a large 10. 2″ display screen that allows users to easily view documents and webpages comfortably, The keyboard is 92% of the size of generic notebooks – making it more comfortable to type for more relaxed usage.

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