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Electronic hobby kits and equipment, cell phones, computer equipment, software, security solutions

Welcome to this online store of electric equipment,  computing, communication and other electronic equipment. Pleace click om a banner to learn more or to buy. Further down on this page, there is some information about cell phone technology, about using the phone to browse and access the internet and about electronics.

 

 

Cellphones

Smartphones and pocket computers

GPS units

Electronic building kits and electronic components

Digital photo and video equipment

Computers and consumer electronics

Electronic security

 

Security software

Software and electronic games

Batteries, inkjet accessories and periperials

Metal detectors

Links to useful information

Other products

Cell phone technology

 

 

CELL PHONES, CELL PHONE ACCESSORIES AND CELL PHONE PLANS

Here are three good shops of cell phones, cell phone equipments and cell phone services. Please look through the stores and find the offer that is the best for your needs and wishes. Things to concider when one is searching for the best cell phone and plan for you are: Do you call mostly locally or often long distance or abroad? Will you often use internet through the cell phone. Will you need to load things between your cell phone and your computer? Will you play music on your phone? Will you often need GPS positioning? Is coverage at all places important? How often do you call, and how long do you call each time? Will you often write and calulate complicated things on your phone? Will you use your phone for chat often?

 

PhoneSale.com - Affordable unlocked cellphones and cellphones with plans:  Cellphones and phone accessories from many producents for good prizes. The shop specializes in unlocked cellphones but you can also find cellphones bound to a carrier's plan, which of cource will gie you an even lower entrance prize.

You can find phones from Apple, Blackberry, HTC, Kyocera. LG, Motorola, Nextel, Nokia, Palm, Pantech, Samsung, Sanyo, Sidekick, Siemens, SonyEricsson, UTStarcom and plans from carriers like AT&T, Verizon Wireless, T-mobile and Sprint/nextel.

PhoneSale.com - please click here to enter the shop

 

UnbeatableSale.inc - unlocked cell phones and other technical devices  This is a big store where you can find a lot of items for daily use and many more special products for a very affordable prize, among others also cellphones, communication equipment and accessories for cellphones. Please click at this product link to see more about this praticular cell phone and to browse for all other cellphones in that shop. Cellphones is found in the communication department of the store and there is a separate department for cellphonbe eccessories.

PHAROS SCIENCE and APPLICATION-NEW PTL127 Unlocked 3.5G Smartphone Feature Screen

PHAROS SCIENCE and APPLICATION-NEW PTL127 Unlocked 3.5G Smartphone Feature Screen

the traveler 127 is a gps smartphone with both qwerty keyboard and 2.5 touch-screen qvgadisplay. the smartphone features the very latest 3.5g communications capability based on a triband umts/hsdpa/hsupa and a quad-band gsm/gprs/edge cellular modems.unspsc codeunspsc code:43211504


 

A product example:

"LG Ice Cream KF350 Unlocked Phone - White"

"LG Ice Cream KF350 Unlocked Phone:

LG KF350 Veiled LED signal appearing magically. Being able to communicate with LED light, Limpid 3D Layered Pattern, Large Keypad with tactility and with 2.2'' QVGA Large Display.

  • Downloadable polyphonic, MP3 ringtones
  • microSD (TransFlash)
  • 3.15 MP, 2048x1536 pixels
  • SMS, EMS, MMS, Email
  • FM radio capable
  • MPEG4/H.263 player
  • MP3/EAAC+/WMA player
  • Hands free speakerphone
  • Bluetooth Enable
  • Second external Light-matrix type display
  • T-Mobile, Asian & European Carriers, Unionn Wireless, NEP wireless, Longline wireless, iWireless, Indigo wireless, Farmers wireless, Edge wireless, Cincinnati bell wireless, Quantum Wireless, SunCom Wireless Holdings Inc , Wireless Alliance
"


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POCKET COMPUTERS AND CELL PHONES WITH ADVANCES FUNCTIONS

Here are some examples of advanced cellphones with internet and computer functions. By cliking at the product links you can find many others than those exhibited here:

"Blackberry Storm 9500 Unlocked Smartphone"

"Blackberry Storm 9500 Unlocked GSM Quad-Band Smartphone with GPS:

With a unique touch screen and cutting-edge multimedia capabilities, the Blackberry Storm smartphone makes a great impression as you travel across town or to almost any corner of the world.

  • Built-in 3.15-megapixel digital camera
  • Multimedia messaging and picture messaging
  • Web browsing and e-mail capable
  • MP3 and polyphonic ringtone support
  • Hands-free speakerphone
  • Bulit in Micro SD media Slot
  • Bluetooth capable
  • Document editor (Word, Excel, PowerPoint, PDF)
  • Full QWERTY keyboard
  • BlackBerry maps
  • AT&T Wireless (Cingular), Cingular, T-Mobile, Asian & European Carriers, Cellular One, Unionn Wireless, NEP wireless, Longline wireless, iWireless, Indigo wireless, Farmers wireless, Unicell, Edge wireless, Cincinnati bell wireless, Quantum Wireless, SunCom Wireless Holdings Inc, Centennial Wireless, Wireless Alliance
"


"LG KF900 Prada II Unlocked Smartphone"

"LG KF900 Prada II Unlocked Smartphone:

PRADA Phone by LG (Model: LG-KF900) offers a collection of technical upgrades catering to today?s highest mobile needs. In the outer peripherals, new handset preserves the same original minimalist exterior that has now become a key design inspiration of touch screen handsets worldwide. A defining modification for the new handset involves a set of aesthetics keys that slide out to form a more professional look that not only grazes an elevated level of sophistication, but is also a highly efficient communication tool that complements the latest PRADA Phone by LG?s technology.

  • Built-in 5-megapixel digital camera
  • Multimedia messaging and picture messaging
  • Web browsing and e-mail capable
  • MP3 and polyphonic ringtone support
  • Hands-free speakerphone
  • Bulit in Micro SD media Slot
  • Bluetooth capable
  • FM radio with RDS
  • Document viewer (Word, Excel, PowerPoint, PDF
  • Full QWERTY keyboard
  • AT&T Wireless (Cingular), Cingular, T-Mobile, Asian & European Carriers, Cellular One, Unionn Wireless, NEP wireless, Longline wireless, iWireless, Indigo wireless, Farmers wireless, Unicell, Edge wireless, Cincinnati bell wireless, Quantum Wireless, SunCom Wireless Holdings Inc, Centennial Wireless, Wireless Alliance
"




"HTC myTouch 3G Unlocked Smartphone - Black"

"HTC myTouch 3G Unlocked Smartphone:
If you weren't amazed by HTC and Google's first phone offering, the second coming is sure to impress you. The HTC myTouch 3G has done away with the keyboard and features a complete touch screen experience.

The HTC Magic, powered by Android, is designed to turn heads with its chic looks, and command attention with its advanced list of capabilities. It provides the Google suite of services like Gmail, Search, YouTube and Maps geared up for use wherever your life leads you.

The HTC myTouch 3G is unlocked and ready to be used on any GSM network. Just pop in your SIM card and you're set?no activation or additional software required.

  • Send SMS, MMS, e-mail, and instant messages
  • 3.15MP camera with autofocus
  • Wi-Fi enabled
  • Integrated GPS
  • MicroSD card slot for expandable memory
  • Android OS version 1.5
  • Bluetooth version 2.0 with A2DP
  • 3G capable
  • Touch screen functionality
  • Beautiful 3.2'' display
  • T-Mobile, AT&T, Asian & European Carriers, Union Wireless, NEP Wireless, Longline Wireless, iWireless, Indigo Wireless, Farmers Wireless, Edge Wireless, Cincinnati Bell Wireless, Quantum Wireless, SunCom Wireless Holdings Inc, Wireless Alliance
"




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GPS UNITS

By clicking at the product links you can find also other products of the same categories in the shops you get into.

Edge 305 HR+Speed/Cadence Sensor GPS Receiver, Personal Trainer and Cycle Computer

Edge 305 HR+Speed/Cadence Sensor GPS Receiver, Personal Trainer and Cycle Computer

Take your ride to the next level with the Edge 305 HR+Speed/Cadence Sensor GPS Receiver, personal trainer and cycle computer. From competitive road racing to mountain biking, the cyclist-friendly, lightweight Edge will help you achieve your personal best. With the easy-to-use Edge 305 on your bike, you'll always know where you're going and how far you've gone. It has the ability to measure pedaling cadence, heart rate, speed, distance, time, calories burned, altitude, climb and descent, plus much more. It is easy-to-install, highly sensitive. Virtual Partner lets you race a virtual competitor, making training fun. Auto Pause pauses the training timer when you slow down below a specified speed and resumes when you speed up again, so you can focus on your ride. Auto Lap automatically triggers a lap every time you pass a specified location or travel a preset distance. Main FeaturesManufacturer: Garmin, LtdManufacturer Part Number: 010-00447-30Manufacturer Website Address: www.garmin.comConnectivity Technology: CableDisplay Screen: 1.85" Grayscale LCD Interfaces: 1 x USBForm Factor: ExternalDimensions: 3.7" Height x 1.75" Width x 0.9" DepthWeight: 3.1 oz


GPSMAP 76 - Mapping Handheld WAAS GPS - New Low Price! - Save $100

GPSMAP 76 - Mapping Handheld WAAS GPS - New Low Price! - Save $100

The GPSMAP 76 has a built-in basemap containing nautical navigation aids such as lights, buoys, sound signals and day beacons along with a worldmap of cities, lakes, rivers, interstates and exits. Also the GPSMAP 76 includes 8-megabyte storage capacity for points of interest detail from one of Garmin's CD-ROMs. The GPSMAP 76 is completely waterproof and comes in an attractive silver color to really make your dash look nice. Additional features include: 3-D highway page, built-in resetable trip log, RMI/Compass page audible alarms, 500 waypoints and 50 reversible routes, 12 channel WAAS receiver, internal quadrifilar antenna for greater accuracy, large high resolution 4 gray scale FSTN display (180 x 240 pixels), automatic track log, runs on 2 AA batteries for 18 hours and can be interfaced with any electronics with NMEA 0183. Includes; PC cable, wrist strap and user manual. Dimensions: 6.2"H x 2.7"W x 1.4"D.


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ELECTRONIC KITS AND COMPONENTS

The following link will bring you to a shop with all types of electronic hobby sets. You will also find electronic devices of many kind, and a very comprehensive collection of electronic components both for hobby use and for professional laboratory enterprices.

Electronics Kits and components - please click here

 

Examples of electronic devices and components to be found: Semicondutor components like transistors and diodes, condensators / capasitators, inductors / coils, transformers, resistors, potetiometers, senders, resceivers, multimeters, alarms, light organs, amplifiers, cables, cable hoses, interruptors, signal and wave generators, signal analysers, detectors, etc.

 

Some examples of electronic kits

 300-in-1 Electronics Project Lab Elenco

300-in-1 Electronics Project Lab Elenco

These "Electronic Science Labs" will teach you about electronics from A-Z. With these all-in-one labs, you?ll learn about electronic parts, how to readschematics, and wiring diagrams. These kits use Breadboard and Spring hook-up method: Spring: Simply slip pre-cut wires and components into special springs for a safe, secure connection. Breadboard: Just plug the components and wires into the special breadboard socket holes. Some of the projects include a transmitter radio, multiple counter, rain detector, IC organ, digital light dimmer, voltage drop alarm, burglar alarm, tone burst generator, logic checker, delayed timer audio signal tracer, function generator, electronic game, electronic candle, voltage controlled amplifier, optical volume voice level meter, multiplier, metal detector and may more. NO TOOLS OR SOLDERING REQUIRED!




 300 in 1 Snap Circuits Electronics Lab Kit

300 in 1 Snap Circuits Electronics Lab Kit

Build over 300 exciting projects and games. Includes over 60 electronic parts. Build each circuit by snapping them together and your done. This new "snap circuits" make learning electronics a 'snap'. Just follow the colorful pictures in the manual and build over 300 projects, such as: AM radios, burglar alarms, flash lights, doorbells, and much more. You can even play electronic game with your friends. All parts are mounted on plastic modules and snap together easily. Enjoy hours of educational fun while learing about electronics. No tools required.




 TRONIX 1 Basic Electronics Lab

TRONIX 1 Basic Electronics Lab

This handsome lab is a hands-on lab, and comes to you complete with a beautiful, instructive book, all the necessary parts, and a solderless circuit board to help you perform 35 highly interesting experiments, and learn how the basic components of a circuit work at the same time. Have hours of fun creating all kinds of sound and light displays, and amaze your friends by building all sorts of different circuits - this lab is used in thousands of school the world over. Who knows? You may be on your way to an interesting career in electronics and computers!



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DIGITAL CAMERAS AND CAMCORDERS

Quality digital cameras and equipment for good prizes:  From Digital Concepts, Hewlett-Packard, Nikon, Olympus, Panasonic, Pentax, Samsung, Sony, Casio, Digital Blue, Disney, FujiFilm, Girl Gear, Hallo Kitty, Rollei, Sakar, Sealife, Sigma, Spy Chix, VuPoints

All types of camera accessories: Digital SLR, Compact Cameras, Digital Picture Frames, Camera & Printer Kits, Lenses, Memory, Batteries, Bags & Cases, Filters, Tripods, Flashes, Tutorials, Studio Lighting, Docking Stations, Software. Free shipping and no sales tax. Please click at this banner to exactly the camera or equipment you want.
 

Digital Cameras

 

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COMPUTING AND CONSUMER ELECTRONICS

CompuVest: Data equipment for good prizes - Notebooks, cameras, game consoles, telephones and all types of equipment for these: Batteries and adaptors, cables and connectors, cases and encosures, controllers, cpus and motherboards, drivers for storage and zip, optical drivers, printers, scanners, systems and barebones, flash cards, monitors and projectors, input devices, MP2 and MP4, bags for carrying equipment, memory units, network devices

 

Consumer electronics: Computers, Televisions, DVD Players / Recorders, Home Audio / Video, MP3 Players / iPod Accessories, Satellite Radio, Headphones, Mobile Audio / Video, GPS / Navigation, Home Electronics, Telephones & Fax, Personal Electronics, Electronic Accessories

 

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ELECTRONIC SECURITY AND SURVAILLANCE EQUIPMENT

RaidenTech - security gear - In this store you can find all types of equipment you can use to survail any object or area. The  information and allarms are transported to you by wire, by radio or by phone to the places you choose to reseive it.

416-DVR 1-8 Channel Digital Video Recorder PCI PC

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SECURITY SOFTWARE

Panda Software security solutions - The the Panda software pakages, containing the TruPrevent technology, offers security solutions for every need of companies and private users. There are functions for protection against viruses,  hackers, Trojans,  spyware,  phishing, spam and other Internet-related threats and malware. The Panda Lab is the fastests It security lab in the world and it distributes updates before a new security threat has managed to spread in a wide fashion, and thus a customer of Pandas security solutions will very swiftly have an updated protection.

The solutions contains functions, called Trueprevent, also capable of detecting threatening  new objects that are not known yet, and thus the customer have a good protection against new threats even before a specific update for that threat has been produced. Product packages available are: Internet Security 2008, Antivirus+Firewall 2008, Antivirus 2008, DesktopSecure for Linux, Online antivirus.

By clicking at the banner below you will find all products and guidelines for choosing the right product:

Panda Antivirus: Award-winning virus protection

 

This package contains all types of functions needed to protect against internet ralated threats: Antivirus, AntiSpyware, AntiPhishing, Firewall, Identity Protect, Backup, TruPrevent, AntiSpam, Parental Control, TotalScan Pro

Panda Internet Security 2008

 

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INKJET CARTRIGES, BATTERIES, POWER SOLUTIONS, PERIFERIAL ACCESSORIES

All-Battery.com: Batteries and power solutions for all kind of electronic and electrical equipmenrt.

All-Battery.com

 

Accessories for all types of laptop equipment from all brands and for all models for good prizes: Examples: Laptop Batteries, PDA Batteries, MP3 Batteries, Digital. Camera Batteries, Camcorder Batteries, Universal Batteries, AC Adapters, Car Adapters, Airplane Adapters, Universal. Adapters, Printer Power Supplies, Chargers. GPS Receivers, Sync Cords, Fiber Optic Cables, HDMI. Cables, DC-DC Plugs  RPTV Lamps, Projector Lamps, iPod Accessories, MP3 Accessories, PDA Accessories. And more.

Laptop Batteries - Factory prices - Same Day Ship

 

123InkJets: Here you can find inkjet cartridges for  good prizes to most ink printers of most brands, examples: Hewlet Packard, Apple, Canon, Epson, Lexmark, Dell. Brother, Compaq, Datatech, Fujitsu, IBM, Koda, Memorex, Minolta, Olympia, Panasonic, Samsung, Xerox, Samsung, Minolta, Memorex, Okidata, Olivetti, and many more. You also find other accessories like: Laser toner, ribbons, solid ink, blank CD/DVD, scrapbooking and cables

123inkjets - Printer Ink, Toner, and More

 

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SOFTWARE AND ELECTRONIC GAMES

GamePass - By membership you get a new FREE game of your choice every month!.  Over 550 games to choose from and new releases every week. Get 25% to 75% off on all other games you decide to purchase. You can get advance notises of new releases and events.

Get Any Game FREE with GamePass

 

Games and software for very good prizes: In this shop you will find electronic games of all chathegories: Action,Adventure, Arcade, Board Games, Cards & Casino, Classics, Collections, Flight Sims, Hunting & Fishing, Kid Games, MahJonng & Tetris, Pinball, Puzzle, Racing, Role Playing, Simulations, Sports, Strategy, Trivia, War Games. This is also a general store for software and computer accessories where you can find any kind of software for good prizes.

Bargain Alert Blowouts of the Week!

Some of the software packages in the shop:

Text editors and office tools:  CompareSoft CompareOffice,  Microsoft Office 2007 Groove , Microsoft Office 2007 Home and Student , Microsoft Office 2007 Professional , Microsoft Office 2007 Professional Upgrade , Microsoft Office 2007 Small Business, Microsoft Office 2007 Small Business Upgrade , Microsoft Office 2007 Standard Full Version , Microsoft Office 2007 Standard Upgrade , Microsoft Office 2007 Ultimate Full Version , Microsoft Office 2007 Ultimate Upgrade , Microsoft Office Publisher 2007 , Microsoft Office Word 2007, OmniForm 5.0, OrgChart Professional

Presentation and formatting tools: 1 , ACT! 2008 v10 , Adobe Acrobat 8.0 Standard for Windows , Adobe Creative Suite Production Studio Premium , Adobe Photoshop Elements 5 for Windows , Adobe Premiere Elements 3.0 , ScanSoft PDF Converter Professional 4, FormTool Deluxe 5.0 , PDF Converter 2 Professional

Internet page and multimedia  editors: Multimedia Developer Professional, Nero 8 Ultra Edition,   QuarkXPress 7 for Windows

Databases, data storage and application programming tools: Norton PartitionMagic 8.0, FileMaker Pro 9

Artistic tools: T-Shirt Design Kit RTL

Economics and business: BizPlan Builder 8, My Business Cards, OrgChart Professional

Networking and telephone applications: LapLink PC Mover - Moving Kit Edition , LapLink PC Mover - with Moving Kit Edition, MobileWare Christmas Ringtones & Wallpaper, Intellimover Transfer Your PC Deluxe, OrgChart Professional 1.3,  PcAnywhere 12.1 - Host & Remote

Security and backup solutions: McAfee Internet Security 4.0 - French Edition , McAfee Internet Security 4.0 - Spanish Edition, Secure PC , JumpVault Total BackUp Solution Software.

Simulaters: Aeronautics & Aviation Applications.

Speech and language tools:  Dragon NaturallySpeaking

Training programs: Professor Teaches Windows Me, Professor Teaches Home & Small Office Networking, Professor Teaches Word 2002

Operating systems and tools: Microsoft Windows Vista Business Full Version , Microsoft Windows Vista Business Upgrade , Microsoft Windows Vista Home Basic Full Version, Microsoft Windows Vista Home Basic Upgrade , Microsoft Windows Vista Home Premium Full Version , Microsoft Windows Vista Home Premium Upgrade , Microsoft Windows Vista Ultimate Full Version , Microsoft Windows Vista Ultimate Upgrade , Microsoft Windows Vista Ultimate Upgrade Signature Edition B, Microsoft Windows XP Home Edition Upgrade w/SP2, Smart Office Pack 2.0, Parallels Desktop for Mac, System Commander 8

OCR software, paper scanners and readers, picture scanners: OmniPage 16 OCR Software

Utilities and desktop administration tools:  01 Greatest XP Apps & Utilities

 

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DETECTORS TO FIND METALLIC OBJECTS IN HIDDEN PLACES

Here is an example of many metal detectors available. By clicking at the link, you can read more about this product example, or you can search for many other metal detector models.

MD9100 The Weekender Metal Detector from Famous Trails MD9100 The Weekender Metal Detector from Famous Trails All-Metal Mode detects all types of metal, Notch Mode eliminates certain metal objects Discrimination Mode displays metal types such as rings and US Coins on the console LCD displays depth of target, low battery alert, distinct tones indicating types of metals Includes headphone jack, waterproof search coil, and padded arm rest Requires two 9-volt batteries (not included)

 

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SOME PAGES WITH USEFUL INFORMATION (Scroll past the product presentation on each page)

 

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Some other items

Watches - Many famous brands for affordable prices like: Citizen , Casio , Chase-Durer, Hamilton , Movado , Oakley , Pulsar, Seiko , Skyhawk, Suunto watches, Swiss company models. Many special watch cathegories, dress watches, dress watches, flight chronographs, dive watches, chronographs for advanced applictions, titanium watches.

 Looking for a Watch? - Try Princeton Watches!

 

Design your clothes yourself and then order your self designed clothes to be made and sent to you - This online service let you design your own clothes exactly as you want them to be with an easy to use application. The designs can be stored in your own map in the database, and when you are satisfied with your designs, you can order the clothes to be made and sent to you.

For residents in US, please click at this banner:

Spreadshirt Designer

Residents in UK, please click at this banner:

Spreadshirt Designer

 

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ABOUT CELL PHONE TECHNOLOGY AND INTERNET ACCESS THROUGH THE CELLPHONE

The basic function of the cell phone is to transmit voice and other information through the cellular network. This network however has the ability to transmit any kind of information, but with less capacity and more expensively than ordinary data networks.

All cell phones have the ability to transmit and present voice and messages through that network. The capacity in the network can however be used also for internet transphere, and some cell phones also have capacity to access other networks or techical units outside the cell phone network.

 

Internet through the cell phone network

Many cell phones can access the internet through the cell phone network. These are commonly called WAP-phones. Nowadays most cell phones have this capability to some extend.

These phones use a service called "wirelesss internety service through" in the cell phone network.  There are several variants of this service with various speeds. GPRS is usually the slowest, while 1xRTT and EDGE are faster.

 

Accessing internet through wireless local networks

A cell phone can also have installed the capability to access a local ADSL internet connection through wireless connection. Such phones are calle Wi-Fi phones. This capability can however only be used in buildings or areas that have a ADSL connection and where this connection have a wireless transmitter. By using this capability, one get access to a much greater speed, and there is no extra costs using the network.

 

Accessing the internet from your PC using cell phone as a modem

Some cell phones can be used as such a modem between a PC and the internet provider, so that the information from the internet is displayed on the PC. In this case the cell-phone resceives the data theough the cell phone network and wires it over to the computer.

In orther to be used this way, the cell-phone must have a data-port and hardware/software that let it separate out the internet traffic that is going to and from the PC. This functionality is usually just called modem.

 

Enabeling your PC to access data from the cellphone network without a cellphone

You can get cards for your PC, modem cards, that let your PC access data through the cell phone network. Then you do not need any cellphone to use thecell phone network as an internet data channel.

 

Wireless enabled web-sites

Basically a wap enabled phone can access any site. But if the pages of the site is too large, too complicated or contain heavy pictures, the phone will not be able to display the content with a useful speed an in such away that it can be viewed usefully. Website owners must therefore make their sites wireless friendly. That implies dividing the content in several smaller pages than fewer larger, and having a simple page layout. Some content providers have the strategy of making their basic sites wireless friendly, while others make separate wireless-friendly sites.

 

Display capabilities in the cell phone

There are differences among phones about the ways information from the internet can be displayed on the phone. The display capabilities depend both of the speed of the internet service used and about the display functions in telephone itself.

Some phones can only display simple texts from the internet. Others can display graphical immages. Stll others have the speed and functions to display video animations an TV sendings through the net.

 

Web-browsers for mobile phones

It is not possible on a practical way to show a whole complicated web-page on a mobil phone. Therefore mobile phones ned web-browsers that can divide each page up in practical parts to be  displayed at a time and that can allow the user to switch easily between the parts of the page. A mobile phone also have limited memory, so that to many pages or even a  whole complicated page canot be cashed simultanously.

Browsers that display web-pages in a manner practical for a mobile phone and that fetches and cashes web-content in a practical way have been developed, for example opera mini.

 

Wireless connection between the cell phone and PCs - Bluetooth

Most cell phones have the capacity to trasnmit data to and from a PC or other data equipment through a cable. In som ecell phones this transmission can be effected wirelessly. This wireless transmission confirms usually to a standard called Bluetooth. Phones that can connect to a PC wirelessly are usually called Bloetooth phones. To do so, also the PC must have bluetooth capabilioties.

 

GPS or global positioning service on the phone

The GPS network based on satellites in orbits around the globe can be used to determine where you are at any time. Some cell phones have in-built GPS capacity. Suchs phones can be used to determine the exact geographical position you are on at any time.

Advanced GPS phones also have inbuilt map services, so that you can see on a detailled map where you are.

 

 

ABOUT ELECTRONICS AND ELECTRONIC DEVICES

Electronics is the study of the flow of charge through various materials and devices such as, semiconductors, resistors, inductors, capacitors, nano-structures, and vacuum tubes. All applications of electronics involve the transmission of power and possibly information.

When information is transmitted, it is coded by the strength of the voltage or current in the circuit.

Although considered to be a theoretical branch of physics, the design and construction of electronic circuits to solve practical problems is an essential technique in the fields of electronics engineering and computer engineering.

Devices, products and components using electric current or voltage are also generally called electronics.

The study of new semiconductor devices and surrounding technology is sometimes considered a branch of physics. This article focuses on engineering aspects of electronics. Other important topics include electronic waste and occupational health impacts of semiconductor manufacturing. Here are the main types of electronic ciruits explained.


Analog circuits

Hitachi J100 adjustable frequency drive chassis.Most analog electronic appliances, such as radio receivers, are constructed from combinations of a few types of basic circuits. Analog circuits use a continuous range of voltage as opposed to discrete levels as in digital circuits. The number of different analog circuits so far devised is huge, especially because a 'circuit' can be defined as anything from a single component, to systems containing thousands of components.

Analog circuits are sometimes called linear circuits although many non-linear effects are used in analog circuits such as mixers, modulators, etc. Good examples of analog circuits include vacuum tube and transistor amplifiers, operational amplifiers and oscillators.

Some analog circuitry these days may use digital or even microprocessor techniques to improve upon the basic performance of the circuit. This type of circuit is usually called 'mixed signal'.

Sometimes it may be difficult to differentiate between analog and digital circuits as they have elements of both linear and non-linear operation. An example is the comparator which takes in a continuous range of voltage but puts out only one of two levels as in a digital circuit. Similarly, an overdriven transistor amplifier can take on the characteristics of a controlled switch having essentially two levels of output.



Digital circuits

Digital circuits are electric circuits based on a number of step-wise voltage levels. Digital circuits are the most common physical representation of Boolean algebra and are the basis of all digital computers. To most engineers, the terms "digital circuit", "digital system" and "logic" are interchangeable in the context of digital circuits. In most cases the number of different states of a node is two, represented by two voltage levels labeled "Low" and "High". Often "Low" will be near zero volts and "High" will be at a higher level depending on the supply voltage in use.

Computers, electronic clocks, and programmable logic controllers used to control industrial processes (PLS),  are constructed of digital circuits. Digital Signal Processors are another example.

Examples of digital circuits are: Microprocessors , Microcontrollers , Application-specific integrated circuit(ASIC) , Digital signal processor (DSP) , Field Programmable Gate Array (FPGA) , Mixed-signal circuits

Such higly complex ciruits are built up of smaller units like: Logic gates , Adders , Binary Multipliers , Flip-Flops , Counters , Registers , Multiplexers , Schmitt triggers , Highly integrated devices:



Mixed-signal integrated circuit

Mixed-signal circuits refers to integrated circuits (ICs) which have both analog circuits and digital circuits combined on a single semiconductor die or on the same circuit board. Mixed-signal circuits are becoming increasingly common. Mixed circuits are usually used to control an analog device using digital logic, for example the speed of a motor. Analog to digital converters and digital to analog converters are the primary examples. Other examples are transmission gates and buffers.
 

(This information is mostly fetched from wikipedia.org and it is therefore free to reuse)

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