For a long time, was only possible to interconnect computers through cables. Although this type of connection is very popular, has some limitations, for example, is only possible to move the computer until the range limit of the cable; environments with many computers may require adjustments in the structure of the building for the passage of wires, in a home, you may need to drill holes in the wall for the cables to reach other rooms, and the constant manipulation or incorrectly can cause the cable connector for damage. Currently, you can avoid these and other problems with the use of Wi-Fi (or just WiFi), which allows the interconnection of computers using wireless networks (wireless).Wi-Fi is a set of specifications for wireless local area networks. The name Wi-Fi is seen as an abbreviation of the English term "Wireless Fidelity", with the Wi-Fi, you can deploy networks that connect computers and other compatible devices (cell phones, game consoles, printers, etc.) that are geographically close. These networks do not require the use of cables, since they carry out the transmission of data through radio frequency. This scheme offers several advantages: it allows the user to use the network at any point within the limits of transmission range by not requiring that each element connected using a cable, allows for rapid insertion of other computers and devices on the network, prevents walls are pierced or adapted for passage of wires, among others.The flexibility of Wi-Fi is so great that it became feasible to implement networks that make use of this technology in various places, mainly because of the advantages mentioned in the preceding paragraph result in cost savings. Therefore, it is common to find Wi-Fi available in hotels, airports, bus stations, bars, restaurants, malls, schools, universities, offices, hospitals, etc., which offer Internet access, often free of charge. To use these networks, the user just have some laptop, smartphone or any compatible Wi-Fi
TheQR-code isacode oftwo-dimensionalbarthat was createdin 1994 byJapanese companyDenso-Wave.QRstands for "quickresponse"becausethe ability to beinterpretedquickly, theQR-code iswidely usedin Japan butlittle known in Brazil.
A QR code (abbreviated from Quick Response code) is a type of matrix barcode (or two-dimensional code) first designed for the automotive industry.
PlayStationPortable,also knownby the acronymPSPisthe portable version ofSony'sgames console,thePlayStation series.Its maincompetitor is theNintendoDShandheld consoleNintendo.Seguindothe tendencyofthePlayStation family, PSPhas other functionsbeyond gaming, such asaudio player,video andInternetaccessthroughWi-Fi networkcan have itwirelessly.It was releasedin March2005.Its graph issimilar to thePlayStation2.Another attractionof the PSP isits widescreen displaywith highbrightnessand definition.
Thedesign:
Thedesignis perhaps themost mentionedandmost common imageyou have inmindwhen talking aboutthe PSP.Undoubtedly themain attractionis the4.3-inchwidescreen display,480x272pixels, unprecedented forthe proportions ofapocketvideo game.Not to mention thatthe 16:9widescreensets the standardfor thepleasantaspect ofgames andhandheldvideo gamesfilmes.Osonlythatthe 16:9format,isdisplayedon the PSPand the Nintendo3DS
KenKutaragi, creatorof the PlayStation platformand formerpresident of SonyComputer Entertainment, called thePSP as"the most beautiful thingin the world."
Utilities:
Besidesgames, thePSPplays moviesMpeg-4,Flash applications, MP3, AAC, WMA (onlyafter activation, which requiresanInternet connection)and photos (JPEG),oron the UMDto MemoryStickDuoand alsocan accessthe Internet viaWi-Fican alsobe used asgame controller andthe sub-screenfor the PlayStation3, forexample,serving as amirrorin racing games, oreven use theSixaxisorDualShock3controllerPS3on laptop(onlygo [N-1000series]).It is alsopossible to buythePlaystationPS onegamesvia the PlayStationStore andplay themon the handheld console.
PlayTVthrough a devicecalledtheSonyLocation FreePlayer™digital cameraand turnsthrough thecamera totheSonyPSPwhich isattached to theUSB port.They arealso introducingaJava Virtual Machine.There is also theGo!Explore,aGPS receiver thatturns thePSP into anavigation systemwith mapsand streets,but thathas only beenreleased in Japanand Europe.