Sunday, January 31, 2010

Shower Radio - Finally, it is good

A shower radio is one of those services useful gadgets that many people would be happy to have. You can listen to the weather and traffic news while taking a hot shower first thing in the morning, so we know what to expect on the road 's Office. After a hard day, you can plug in your favorite jazz station, while having a relaxing bath. Is only a shower and the bathroom even more enjoyable.

The radio's most important quality for use of the bathroom is that it must be waterproof. The most common radio will not be able to withstand the moist environment of a bathroom, let alone survive an accidental fall in a bathtub full of water. Accordingly, shower radios must be specially designed.

There are many shower radio on the market. Unfortunately, according to user reviews, most of these radios suffer from one or more of the following problems: buildings of poor quality, cheap materials, the isolation of insufficient water, lack of durability, signal reception is poor and the quality sound. In particular, many users complain of difficulties in adjusting to their favorite stations. Many of these are poor and radio aerials are therefore not capable of receiving all AM / FM radio channels that regular. And even if they do, the reception is often confused and intermittent. This problem is often compounded by the low-priced speakers that play sounds and metal cables.

It seems that many producers did not become serious, with the design and manufacture of radio equipment designed for the bathroom. The end result is that the shower radios are often perceived as inherently low quality products.

Fortunately this is not always true. The good news is that there are good everywhere, but they are few and far between. One of these is the Sangean H201. There are many good things to say about this radio, but four main ones being: excellent digital AM / FM radio, clear sound, resistance to hard water and the construction of high quality. This is a cut above other similar products on the market. From the feedback of consumers, the Sangean H201 has shown that it can tune to radio stations that other showers have difficulty receiving, and the sound quality is excellent, with virtually no distortion even at high volume. Its sturdy, solid, quality impresses too many users. Addition, it comes with other useful features like the 10 presets, LCD display, clock, timer and two mounting options.

With the Sangean H201, is now able to enjoy very high quality radio while taking a shower or bath.

Saturday, January 30, 2010

The wave of the future, digital radio is here to stay

Digital Radio had to fight for his place in the market. Most of the United States does not have a radio or digital Satillite and the reasons are obvious. Digital radio receivers are not only expensive at the moment, but you must also subscribe to a service available for a monthly fee. The monthly fee is more high prices that discourage the satellite radio /. Many stores that sell digital radio receivers are putting a lot of promotions in the form of discounts and rebates to try to persuade the customer to buy.

I think personlly digital radio receivers will follow the same path as most electronic devices
follow. Initially the manufacturing process, the price level is high and the technology improves and mass are improved, costs will be significantly reduced. We saw this trend in the past for such items as televisions, VCRs, telephones, stereo equipment, to name a few.

Digital radio stations are thousands of options more to offer the listener that the ordinary'm old analog FM radio stations. There is the issue of quality. Gone are the days when the radio quality would fluctuate based on whether or not you were driving under an overpass or through power lines. Interference with digital, there is relatively little from all external sources that can disrupt your listening experience. This is a good thing the largest digital radio. Furthermore, it is not necessary for the game of guessing when you hear a song you like and disk jockey fails to mention the name of it. With digital radio and an invention called "Radio Text", listeners can read the artist name and the title track on his radio receiver as the song is played. Radio stations will also be able to provide information on news, weather and traffic directly as text on your radio. I like a lot of these options.

Every station that is now saying he is completely digital, is lying. They are simply a hybrid between analog and digital, for which the radio receiver of the analog signal of choice, then the houses on the digital signal to an issue of better quality. The possibilities do not stop there, though, because it may also be possible for stations to transmit digital images and video directly on your car or home stereo through the magic of digital broadcasting.

Although the terrestrial digital radio stations at least ten years away, there's a way to discover some of the advantages of digital radio today. Satellite radio, here in America by XM Satellite Radio and Sirius Satellite Radio offers the text nearest digital radio. They provide the listener with the sound quality and high Radiotext let people see what they hear too much.

Friday, January 29, 2010

The abundance of promotional radio options

When it comes to promotional radios, you're not pressed for some choice, each radio is unique and, unlike the promotional pen, there are many different options with dual function radio, or radios particular purpose. Make your next promotion or client gift a cut above the normal, with a radio promotion!

Many radio stations, both high end of the ship and the office staff, with a dual function. Among these is the Quick Travel Fan radio, which as the name suggests, includes a handy travel fan integrated into a portable radio and headset together, which makes it the ideal object of promotion for the summer.

Another radio dual function pedometer Radio Active, which includes a pedometer that counts every step taken when the radio is worn. There is also the proposal Stopwatch Radio-timer with an integrated FM radio and headphones. Both active movements and radio models are excellent to add to your subject to any selection of fitness or exercise related to the promotion or gift.

There are some interesting options for the radio in high office, too. With a clock and the frame plus an FM radio, Bloom has a gate of times winning design style red, blue or green. The addition of a picture frame allows recipients to personalize your gift for the radio, making it more likely that this gift will keep on their desk and use it every day.

Two desktop models and mood are unusual Lindo Radio Top Radio. Lindane is simply fantastic doubled as a pen, this radio is available in silver and black, blue or green, and is a component of great look with a unique design. Radio Humor is a very eye catching style, with a light inside a cube-shaped radio light travels constantly change color from blue to yellow, pink, green and red, and Antenna style metal braces defines this radio well as similar models.

All these models can be easily customized with your name or company logo, or even a slogan or a message. These innovative designs are sure to be a great success with customers, and the conference participants and trade fair. With a wide range of models available, there are colors and styles to suit any logo or message you want to add. Radios are becoming an important part of promotion for customers and clients, and are even stronger impact on the morale sign of appreciation for the staff, too.

More information about promotional items, promotional gifts and promotional products can be viewed on-line research of the leading suppliers in online promotional products. Can exploit the wealth of experience to make sure we have the perfect promotional gift or business gift to promote your business at your next conference.

Why not request a quick quote from YesGifts or other online suppliers, you will find that YesGifts give you good value for money will offer the best quality promotional item for your business conventions. Be sure to check their special offers and deals on certain items.

Thursday, January 28, 2010

Three new DAB radio for you try Away From FM

DAB radios give you better audio quality, making it easier to find the station you are after, and even offer pause and rewind features. This article is an objective analysis of three of the last radio launched in the United Kingdom.

Revo Technologies has announced the launch of the first section of the DAB and DAB + and Internet radio, which integrates all the functionality of docking iPod in the world.

The iBLIK RadioStation, with a bold, contemporary design, will be sold through Apple as well as on-line and the full features DAB and DAB plus digital radio reception, FM radio coverage with RDS, Wi-Fi Internet Radio, Media Streaming MP3 from a PC or Mac, full electronic alarm clock features iPod dock functionality.

The multi-tasking device, described by the company, as the ultimate digital radio device will cost GBP 179.95 and will be sold in the United Kingdom from 18 August.

After the launch of the glossy black retro DAB radio, Bush has launched a version in red, TR04DABRED. The new Luscious lip gloss red, Bush said the sexy touch screen control has an instant wow factor.

Users can touch the panel to scroll through the DAB stations alphabetically, and automatically store 10 DAB and FM 10 stations with a touch screen. Has a bright red color and the rear chrome handle and matching the classic logo on the front grille diffuser 1950 Bush to give a touch of nostalgia. The DAB radio is available on the main road from July to 49.99 GBP.

PURE ONE Elite is the company calls a bestseller stereo pure evolution. The radio is available in black or white with chromed controls and smooth curves, and with a warm, tactile soft-touch finish.

The main features include DAB radio reviewed for Pause and rewind live DAB radio, which allows the radio Intellitext for storing scrolling text; tone or radio alarm clock, countdown timer and sleep, and 50 station presets, Bass and Treble separate USB socket for future upgrades, auxiliary input for MP3 player, and textSCAN, which lets listeners pause and control scrolling text, giving them time to record the details.

Elite One is the seventh PURE radio to be approved by the Fund for Energy Savings Plan Energy recommended. Dummies on the ground and ears, the pure Elite DAB radio can be yours for £ 69.99.

Wednesday, January 27, 2010

Old Time Radio Fans Finds 50 years

Rewind a few decades at a time when fresh milk was still delivered at home in the nation in glass bottles, when the bread is a recent innovation, and when pop-up toasters are the height of sophistication ... Back to when times were simple ...

... was the old-time radio.

Of course, we call it "old-time-radio" today, but in the 1930s, '40s and '50s, radio is the most new, more popular and powerful about. The radio was in 1930 that the Internet was until 1990.

The years between 1959 and 1962 are often described as the golden age of radio - and radio programs were broadcast during this period was much more variety on the radio today.

The performance captured the hearts and imagination of Americans from coast to coast. There was a time when families would gather 'round the radio in the living room - that the "magic box" that had the mysterious power of extracting laughter, tears, drama, excitement and adventure out of the air and are introduced into our homes .

The golden age of radio began in 1929 with the debut of radio broadcasts as Goldberg, True Detective Mysteries, National Farm and Home now, and Rudy Vallee Show. Continued with 1930, when shows like Fibber McGee and Molly, Lux Radio Theater, The Aldrich Family, Bob Hope, Al Jolson and the show hit the air.

For radio transmission in 1940 was in full swing. Watch as Abbott and Costello, Escape, Suspense, this is the FBI, Judy Canova Show, You Bet Your Life and Adventures of Phillip Marlow dominated the airwaves

At the time the 1950 came around the radio was a serious competitor in the form of television, but many high quality performances could be heard every night of the week. Gusnmoke, Dimension X, Tales of the Texas Rangers, Dr. Kildare and sixty-four U.S. dollars matter was heard by millions of people.

As he did in 1950 the glory days of radio were coming to an end. In September 1962, the last episodes of Suspense and Yours Truly, Johnny Dollar was issued. It was the end of an era glory. Era that exploded into public consciousness in 1920, but was rejected in favor of the new visual medium of television.

What happened to all those wonderful old time radio shows and why should anyone listen to these shows now?

It 'been 70 years since Amos n Andy' on the air, almost 50 years since Fibber McGee's full of junk room fell on someone who came to the door, and more than 40 years since Johnny dollar has filed its tax Application for final payment, why would anyone want to listen to several decades old radio shows when there are hundreds of television channels and cable select, and an endless selection of films on the big screen, not to mention entertainment on-line with all its interactive bells and whistles?

The main reason is nostalgia for the "old days". Emissions Old-Time Radio allows listeners to enjoy a pleasant stroll along the memory when times were simple. For older generations, that brings back memories of when they were younger, and for the youth of today provides a wonderful vision in how many lives have changed over the years.

Another reason why the Old Time Radio witnessing a revival is the amazing variety of shows that were recorded during the radio gold. There are thousands of old time radio programs to appeal to every taste, mood and age, everything from surreal comedy with spine tingling thriller.

Finally, there is a growing desire for a healthy fun. Watch Old-Time Radio offer a refreshing break from the vulgarity, profanity, sex and violence that punctuate modern television, film and other forms of entertainment.

Fortunately, over the years many people have collected and restored these old shows so they can still be very popular with older listeners as a new generation to go to them for the first time. Ironically, the growth in popularity of a brand new medium of technology, the Internet, which has really helped to make these classic radio shows available to a wider audience.

So, if for reasons of nostalgia, safety, or simply for entertainment value only old-time radio shows are becoming increasingly popular alternative to the mainstream media of today and that is worth a check if you is 9 or 90.

Tuesday, January 26, 2010

Talk Radio Station - the final destination of your / your business!

Select the hottest spot on the Internet to promote your business? No, this is not a blog, forum or website. It 'was on a talk radio station on the Internet. Very simply, a discussion of Internet radio is the most recent point on the Internet, where all the action. If not like, you're missing something! Let me explain.

Most of us love and the pleasure of listening to the good old radio. Times have changed and therefore the way we entertain ourselves. This is the era of Internet and online entertainment. Our habits of listening to the radio, found a new platform - the Internet. That's right, with Internet radio or e-radio, the latest incarnation of the radio in the information.

All we need is an Internet connection to experience the phenomenon called Internet radio. Get access to hundreds of stations with a click of your mouse. Every day, more and more to listen to their favorite radio stations online and enjoy the music you like listening all day. But only half of what Internet radio is in Serbian for you.

If you are looking for something more from your Internet radio, connect to a radio station talk on the Internet. Internet Talk Radio? That's right, you read correctly (no typos here)! This is the last thing that scan the Internet
Community radio. Wants a break from the incessant music and Top-10 Top-20 hits? If you are looking for a stimulating conversation and discussion, only a radio debate on the Internet and get the gold medal goes to a new world of entertainment alternatives.

Scene All Talk Radio Internet is full. There is a shortage of stations and needed only a little 'search to find and tune into Internet radio stations to talk about your favorite subject or hold a Talkshow on your area of interest. From politics to religion, health, women's issues, sports and entertainment for literature and the special interests - you can always find a radio station on your favorite topic.

Besides the obvious entertainment opportunities of the Internet radio, there are excellent business opportunities in the concept. In other words, Internet radio is an ideal place to promote your new business. Advertising on Internet radio is like traditional radio advertising - but more powerful. This is because it gives you more precise targeting options allows you to combine audio ads with synchronized banners and buttons to maximize visibility and attention, allows your listeners to action immediately (after all, are only one click away from your website) and puts you in control of your campaign (you can pay the service provider on the basis of actual number of impressions).

Internet radio is growing rapidly and is already a significant part of marketing campaigns for many companies. A recent report has revealed some fascinating facts, so that over 50% of Internet users consume streaming media, the number of Americans who listen to radio online has nearly quadrupled in three years, streaming media refers attractive target for advertising, and Americans spend less time watching TV or reading print, and spend more time on the Internet.

It 'easy to understand why a discussion of Internet radio is a destination for advertising for your business. Discover the power of Internet radio. Steal an advantage over competitors.

Monday, January 25, 2010

How to use the GPS clock

The Global Positioning System (GPS) is an American military system primarily intended for global navigation. The system provides accurate positioning for navigation. The GPS system consists of a constellation of 24 satellites in orbit. Each satellite has an atomic clock on board, which is ideal for providing a reference point of time of high precision.

This article explains how the GPS clock can be used to provide a precise reference for computers and computer networks. The GPS system is often used for computer timing applications, such as NTP time servers and accurate timing references.

GPS Time

GPS time is transmitted continuously from the GPS system. The time refers to UTC (Coordinated Universal Time), which is the same all over the world and does not vary with time zones. GPS timing information can be received with relatively low cost equipment, such as a GPS receiver and antenna.

The GPS signal is very weak radio signal from low power. The signal has designated two frequencies, L1 and L2. Frequency, L1, is the civilian GPS frequency transmitted at 1575.42 MHz signal travels in a straight line and can pass through clouds, glass and plastic, but is blocked by objects such as metal and masonry. The ideal location for a GPS antenna on the roof with a good view of the sky. Often, the installation of the antenna on the side of a building or in a window can make a heaven good enough to give adequate results.

GPS Clock

The GPS system provides a self-service in time for the synchronization of air, there is no current registration or license fee. Many computer systems use the GPS clock as time reference specified. Highly accurate NTP server systems use GPS as an external reference clock to synchronize the server Network Time Protocol. Typically, a GPS receiver can provide timing information to within a few nanoseconds of UTC. The accuracy obtained with a GPS receiver is usually more than necessary for most applications, the timing network of computers.

GPS Output

The GPS receiver outputs a constant position and dating. Generally, information is transmitted to and from the receiver via a serial interface RS232. GPS interface standard protocols exist, the most common NMEA. NMEA protocol consists of a series of phrases or strings, transmitted at 4800 bits per second. Position Information in any string of characters is correct and timely. Because of the latency involved in the communication standard, the NMEA sentences are usually not precise enough to provide a reference for synchronization. Therefore, a pulse per second (pps) output is used. A production of PPS is an accurate output pulse every second, which is aligned with the beginning of every second. The SPA can be injected into a line of control on RS232 interface to provide a hardware interrupt input for precise timing. Often, the RS232 DCD line is used as input from the PPS GPS receiver. The MAP combined with the timing and positioning information NMEA provides a very precise timing reference for the computer.

GPS Antennas

The GPS antenna is a signal amplifier that amplifies the GPS signal for transmission over a cable, typically coaxial receiver. GPS antennas are usually used for timing a dome-shaped pole mounting devices for permanent installation in a static. Typically, the GPS antenna is quite small, measuring less than 900 mm in diameter

GPS Cabling

The distance of the cable can be used by a GPS antenna and receiver depends on the amplification of the GPS antenna and the quality of the coaxial cable used for installation. A typical GPS antenna can be a gain of 35 dB. From as low quality RG58 coaxial cable has an attenuation of 0.64 dB / m at 1575 MHz Thus, a cable run of 55m can be obtained using the RG58. Best quality coax, such as LMR400, without using a serial cable to 200m can be achieved. However, high-quality coax can be expensive. A good compromise is the LMR200 cable, which can be performed without the aid 80m. Greater distances can be achieved with the aid of GPS amplifiers, which amplify a GPS signal even more, to increase the distance by cable.

Sunday, January 24, 2010

Biometric technology today and synchronization of access to systems

Time and attendance and scoring systems have evolved in recent years by traditional clock card last shot of biometric technology.
This may seem a bit 'extreme, but millions of people in mass society of people to be late, leaving early and what is known as' Buddy means "the clock for other people. Biometric access control is growing rapidly large organization such as banks, airports, etc. tend to set the trend for this type of technology and I'm sure that if you go to one of these, is a type of biometric scanner if it is pointing or control of access or simply to connect the computer on / off.
What is the problem of magnetic cards or pin numbers you might ask, can be copied or unlawfully obtained, where the biometric scanning is much more difficult to copy in fact almost impossible.

When people hear that you feel immediately biometric technology for fingerprint, but this is just one of many biometric systems.
Fingerprinting is the most common and least expensive to implement in any organization, the readers as IClock
the different readings to identify the point of ridges and valleys in fingerprints and then using a complex algorithm of the store as an individual code. In most cases, there is always a good practice to store more than one code for the fingerprint reader in only one case is cut a finger or a stain that can affect the reading.
Other types, such as the recognition of large drives requiring bulky. The terminal captures a three-dimensional image of the hand each time an employee puts his hand into the reader. The size and shape by hand are used to verify their identity. These types of systems are almost twice the cost of a fingerprint. Face recognition technology is growing, but requires a powerful computer is slow and not as reliable as other biometric technologies, but better than CCD cameras and software improves. Iris recognition uses infrared rays to examine the structure of the blood vessels behind the eye is also a biometric technology growing very fast. Iris recognition is a secure, but still needs to treatment is slow and powerful to play with a high failure rate is not very good for control of access, a lot of traffic.

With all the biometric systems the biggest battle of all during the execution will be like winning the trust of those using it. They need to be reassured that the data will be used only for what it is intended and is safe to use. This is probably the main obstacle to come with the introduction of biometric identifiers.

All of these biometric technologies have a place in today's security and business, but time and technology that the presence of fingerprints is more than enough because of the low cost and reliability, and most applications the safety of dual method fingerprint cards and offers a high level of access control. This is a map of media such as RFID (radio frequency identification) and verification of fingerprints must work together to gain access.

Using bar code technology is also widely used, but it has its problems, chief among them is the ability to clock in or out of other people clock Buddy "Obviously, this can be done if the biometric readers are used. On a positive side for the bar-code technology to other media is cost, because most of the barcode 3 of 9, EAN, Code 128, etc. can be printed on most laser printers and then laminated to create a map or clock the card work for very low cost. Other media can also be used for point-Buddy "is a magnetic stripe and proximity cards, but these media are more expensive than bar codes. Banda magnetism can be produced at home, but a costly encoder and printer are required to produce a map of good quality. RFID tags are purchased with an identification code already programmed, the advantage is that it is more difficult to copy the label and also the player does not need optical or any contact with the media to reduce a maintenance routine.

So what to choose? Biometrics can be as cheap and as reliable as other types of media, but it has its limits. Everyone has a place in today's world, if you need all the employees is the clock back and secure access to fingerprints low is the possibility of any support at low cost to produce or buy.

Saturday, January 23, 2010

Atomic Clock - Keeping the ticking of the world

When people think most of the digital age and its computers, satellites and mobile phones, the silicon chip is the mind of all the people. Yet despite its importance in shaping the world around us, many of the technologies we take for granted would not be possible without the atomic clock.

The first atomic clock was developed in 1955 by British born Dr Louis Essen who worked during the Second World War, the high-frequency radar, which led him to develop a resonance wavemeter, which was successfully used to measure the speed of light.

Using the same technology that has developed the first accurate atomic clock in 1955 at the National Physical Laboratory in the United Kingdom. It is based on the resonance of a cesium atom.

According to quantum theory, atoms can exist in certain quantized energy states depending on the orbits of the electrons from their nuclei. A clock operates by exposing cesium atoms to microwaves until they vibrate at one of their resonant frequencies. It was discovered that an atom of cesium that resonate 9192631770 Hertz (times per second).

Because of this precision in the resonance and the high number of oscillations atomic clocks (sometimes referred to as cesium oscillators) are extremely accurate. Essen first device was accurate to a second thousand years, but the next generation of atomic clocks are so accurate that does not lose a second to several hundred million years.

Because of this high level of accuracy problems in the way in which time the structure. traditionally GMT (Greenwich Meantime) was the basis of time. GMT is based on the principle that the sun is high in the sky at noon (or on the line of the meridian of Greenwich). Unfortunately, as the atomic clocks are so accurate it was discovered that the Earth itself is not as precise in its revolution and is often slowed by the gravitational effects of the Moon.

If nothing was done about it then perhaps the International Atomic Time (TAI - said the time of atomic clocks) through the synchronization with the UTC and, finally, the night would end with the day (though in different millennia).

Coordinated Universal Time (UTC), was developed to counter this phenomenon. It is based on the IAT, but represent the slower rotation of the Earth from time to time by adding "leap seconds", of which 33 have been added since 1970.

Atomic clocks are critical for telecommunications networks.Voice and transfers of data to travel around the world in packaging must be marked as the time is the only point of reference for a computer can be used to reassemble the packets.

The atomic clock also allows satellite communication possible, because the speed of light is so fast (900,000 km per second), a small variation over time could create huge differences. Global Navigation Satellite System (GNSS), such as GPS (Global Positioning System) are heavily dependent on the atomic clock synchronization signal is a GPS receiver uses to triangulate a position.

Thank you for atomic clocks and devices such as NTP (Network Time Protocol), which distributes an atomic clock timing reference received no radio or GPS receiver, a computer network, the synchronization of computers UTC. Thank you for this technology, electronic transactions can now be achieved within five nano-seconds. Without these technologies in online trading as the stock market, buying a plane ticket and even auction sites on the Internet would not be possible.

Friday, January 22, 2010

Clocks - From the Sundial to the NTP server

Time is a concept that occupies the thoughts of humans since the earliest civilizations. One can only have been during the last century that we began to understand the time, thanks to the work of Albert Einstein, but the extent of his visit was an important element of society.

Historically, the time has been measured with the rotation of the Earth and other astronomical cycles such as the phases of the moon. The measurement of time and thus the identification of key events during the day, month or year has been crucial to the development of agriculture, religion, and complex societies.

While the calendars have been used for millennia, prehistoric monuments like Stonehenge, thought to indicate the winter solstice and summer and then locate the longest and shortest days of planting cultures, with small increments of time measurement is been a technological challenge.

The first watches were nothing but the timers, using water, burning candles and sand. They were able to measure a defined period, but less useful for identifying how much time left until expiration or other important events.

The sundial was the first real that you can watch (on a sunny day), to divide the day into equal portions, and thus provide a consistent measure of the day.

The mechanical clock appeared in the fourteenth century. While their technology is based on simple mechanics and were less accurate than sundials exist, they provide a solution to the obvious disadvantages of (day dial opaque).

Mechanical clocks really came into their own once the pendulum was developed in 1600 that provided the existing mechanical clocks can provide better accuracy. The development of mechanical clocks, pendulum engine went up over the centuries to come, and have become increasingly accurate.

However, once it was discovered that some crystals will oscillate at an exact price under the influence of an electric current, electronic watches resume as soon as he realized that the people provided much better precision.

However, during 1950, the atomic clock was developed, they used the oscillation of a single atom (usually cesium) which vibrates at a precise speed per second. Thank you to the atomic clocks that we have just discovered that the traditional way of using the rotation of the Earth and other celestial bodies as the basis of time-keeping would soon cause problems like Earth, was discovered, it would slow or speed up its rotation due to the effects of gravity on the moon.

If nothing is done, then the time told by atomic clocks (International Atomic Time, TAI) would be out of sync with the Earth and slowly becomes a date night.

A solution was found in UTC (Coordinated Universal Time), when leap seconds were added to compensate for the slowing of Earth's rotation.

UTC and atomic clocks have made it possible technologies such as satellites, global communication and the Internet. Most computer networks are governed by an atomic clock using NTP (Network Time Protocol). NTP servers receive the time signal from an atomic clock is a radio signal from the United States or GPS (Global Positioning System) network. This allows computers around the world to be synchronized at the same time scale (UTC), allowing time-sensitive operations, such as stock market and Internet commerce.