Next Technology

One of the coolest things about technology is that they make life so much easier. Technology gadgets have been evolving so quickly that sometimes, people find it hard to catch up. There are now gadgets for almost every need you can think of – portable printers, video and audio players, netbooks, and more. There are gadgets for both leisure and business.

People often travel for both leisure and business purposes. During the trip, there are often pockets of time available, and one may want to bring some useful gadgets along just to make better use of the time. For example, a flight may be delayed unexpected. A portable media player will help provide entertainment both in the airport and during the flight. Simply hook it up with your laptop and start playing a movie. So let’s consider the various gadgets that may come in useful when traveling.

Portable media players.

Portable media players provide hours and hours of entertainment. These devices usually come with huge internal disk drives (over 100GB). The disk space is to allow the owner to store as many DVD movies as possible. For a media player that has over 100GB of disk space, an estimated 50 movies can be stored.

Portable players can be used to watch movies while waiting for a flight, during a flight, in a hotel room or at a cafe.

A netbook or a laptop.

A laptop is probably the most important gadget that you can bring along. Almost all hotels provide wired or wireless Internet access these days. In the hotel room, you can always connect to the Internet and start surfing like you usually do. You can chat with friends, work on documents, download MP3 music files or stream videos.

If you are traveling purely for leisure, you can consider bringing a netbook along. A netbook operates very much like an ordinary computer, except that it’s meant for viewing content rather than creating content. You can use it to play movies, read digital books or play music. But don’t expect it to run any resource intensive software. If you need work to be done, it’s better to bring along a laptop.

Another difference between the netbook and an ordinary laptop is that the netbook is much smaller and lighter. For this reason, it is the ideal travel companion if you do not need the functions of a normal laptop.

Video eyeware.

Video eyeware is a gadget that you can wear like glasses. You can use it to play games or watch movies. It functions very much like a portable monitor, except that it’s very small and light.

This gadget has a rechargeable lithium battery that will operate for 6-8 hours. You can plug it into your iPod, media player, Play Station, Nintendo, and more. This is a great gadget for watching videos outdoors.

You may wish to consider bringing the video eyeware along and leaving your computers behind if you are traveling for leisure. Doing so will help ensure that you really relax while you are on vacation. Stop thinking about work for those few days and really let go!

The Global positioning System (GPS) is a US military system primarily intended for global navigation. The system provides highly accurate positioning information for navigation. The GPS system consists of a constellation of 24 orbiting satellites. Each satellite has an on-board atomic clock, which is ideal for providing a highly accurate timing reference.

This article discusses how the GPS clock can be used to provide an accurate timing 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 continuously broadcast by the GPS system. Time is referenced to UTC (Universal Coordinated Time), which is the same worldwide 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 low-power radio signal. The signal has two designated frequencies, L1 and L2. Frequency, L1, is the civilian GPS frequency transmitted at 1575.42 MHz. The signal travels in a straight line and can pass through clouds, glass and plastics but is blocked by objects such as metal and brickwork. The ideal location for a GPS antenna is therefore on rooftop with a good view of the sky. Often, antenna installation on the side of a building or in a window can provide a good enough view of the sky to give adequate results.

GPS Clock

The GPS system provides a free-to-air time synchronisation service; there are no on-going set-up or subscription charges. Many computer systems utilise the GPS clock as an accurate timing reference. Highly accurate NTP server systems use the GPS clock as an external reference to synchronise Network Time Protocol servers. Typically, a GPS receiver can provide timing information to within a few nanoseconds of UTC. The accuracy achieved with a GPS receiver is generally more than required for most computer network timing applications.

gps receiver Output

The GPS receiver constantly outputs position and timing information. Generally, information is transmitted to and from the receiver via a RS232 serial interface. Standard GPS interface protocols exist, the most common being NMEA. The NMEA protocol consists of a number of sentences, or character strings, transmitted at 4800 bits per second. Contained within each character string is accurate time and position information. Due to the latencies involved in serial communication, the NMEA sentences are not generally accurate enough to provide a timing reference. Therefore a pulse per second (PPS) output is utilised. A PPS output is an accurate pulse output each second that is aligned to the start of each second. The PPS output can be fed into a control line on the RS232 interface to provide a hardware interrupt input for accurate timing. Often the DCD RS232 line is utilised as a PPS input from the gps receiver. The PPS output combined with NMEA timing and positioning information provides a highly accurate timing reference for computers.

GPS Antennas

The GPS antenna is a signal amplifier that boosts the GPS signal for transmission along a cable, usually coax, to the receiver. GPS antennas used for timing purposes are generally dome-shaped pole mounting devices for permanent installation in a static location. Typically, the GPS antenna is fairly small in size, measuring less than 900 mm in diameter

GPS Cabling

The cable distance that can be utilised by a GPS antenna and receiver depends on the amplification of the GPS antenna and the quality of coax used in the installation. A typical GPS antenna may have a gain of 35 db. Low-quality coax such as RG58 has an attenuation of 0.64 db/m at 1575 MHz. Therefore, a cable run of 55m can be obtained using RG58 cable. Higher quality coax, such as LMR400, an unaided cable run of 200m can be achieved. However, very high quality coax can be expensive. A good compromise is LMR200 cable, which can be run unaided to 80m. Longer distances can be achieved with the aid of GPS amplifiers, which amplify the GPS signal still further, to increase cable distance.

The aim of this advantageous merger is to join technical and marketing expertise to offer extended services spectrum, more elegant and intelligent software solutions and products.

Enterra Inc. will be able to provide its customers’ projects with powerful and reliable software components for reporting, data analysis and visualization; it will dramatically reduce cost and timeline of customers’ projects and increase their ROI.

“Thanks to a large number of ready-to-use software components provided by Perpetuum Software we can cut down both the cost and the timeline for our clients’ projects”, stated Enterra’s CEO, Dmitry Starostenkov.

Perpetuum Software will intensify development of existing products; new releases will be announced oftener and will feature more new abilities. As usual all new and promising technologies will be delivered to the customers.

“Enlarged programmers staff will join experience and skills to work hard on new versions of the reporting and data visualization products we offer. I believe our customers will enjoy enhanced quality of our products and services”, said Eugene Akinshin, CTO at Perpetuum Software LLC.

So, customers of the combined company will benefit from this merger as they will get advanced software products, solutions and services of higher level. It will allow us to reach and address new market segments, as well as strengthen our position on the established markets.

Both organizations will go to the next stage of success, innovate and make breakthroughs in the IT industry.

About Perpetuum Software LLC (http://www.perpetuumsoft.com)

The company was founded in 2002. It offers .Net software components designed for reporting, data analysis and visualization. Company headquarter is based in Russia (Barnaul) with offices in Europe (Netherlands) and Latin America (Brazil). It stands as Microsoft Certified Partner. 3500 clients in more than 70 countries have been using Perpetuum Software products for 6 years.

About Enterra (http://www.enterra-inc.com)

The company was founded in 2001. This is a multi-national company with offices based in Tampa (USA), Walldorf (Germany), Barnaul, Moscow (Russia). Enterra specializes in custom software development, business systems integration, software products licensing. It stands as Microsoft Gold Certified Partner, IBM Business Partner, and Sun Partner. Its staff consists of over 50 highly professional specialists. For 7 years it has successfully accomplished over 300 projects.

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