iPod Touch

Black 4th generation iPod Touch
Developer	Apple Inc.
Manufacturer	Foxconn
Release date	September 8, 2010 (2010-09-08) (current generation) September 5, 2007 (1st generation)
Units sold	60 million
Operating system	1G: iOS 3.1.3 2G: iOS 4.2.1 3G: iOS 5.1.1 4G: iOS 5.1.1
Power	3.7 V rechargeable lithium-ion battery, 3.44 Wh, 930 mAh; audio: 40 hours; video: 7 hours[1][2]
CPU	ARM Cortex-A8 Apple A4 1 GHz (underclocked to 800 MHz)
Storage capacity	8, 32 or 64 GB flash memory
Memory	256 MB DRAM[3]
Display	3.5 in (89 mm), 3:2 aspect ratio, 24‑bit color depth, aluminosilicate glass-covered LED-backlit LCD, 960×640 px at 326 PPI
Input	Multi-touch touchscreen display ambient light sensors volume buttons microphone voice control 3-axis accelerometer, gyroscope
Camera	Rear: Video recording, 1280×720 up to 30 frames/s with audio, 960×720 still camera with 5× digital zoom, 0.7 MP[4][5] Front: Video recording, VGA up to 30 frames/s with audio, VGA-quality still camera, 0.3 MP
Connectivity	Wi-Fi 802.11b/g/n (802.11n 2.4 GHz only) USB 2.0 dock connector Bluetooth 2.1[6]
Online services	App Store, iTunes Store, iBookstore, iCloud
Dimensions	110 mm (4.3 in) H 58 mm (2.3 in) W 7.1 mm (0.28 in) D
Weight	101 g (3.6 oz)
Related articles	List of iOS devices
Website	www.apple.com/ipodtouch

The iPod Touch (stylized and marketed as lowercase iPod touch) is a portable media player, personal digital assistant, handheld game console, and Wi-Fi mobile device designed and marketed by Apple Inc. The iPod Touch adds the multi-touch graphical user interface to the iPod line. It is the first iPod with wireless access to the iTunes Store, and also has access to Apple's App Store, enabling content to be purchased and downloaded directly on the device. As of March 2011, Apple has sold over 60 million iPod Touch units.^[7][8]

Software[link]

The iPod Touch runs iOS. The first major update after the initial release was iPhone OS 2.0 This update introduced the App Store, which allowed third-party applications for the first time. iPhone OS 2.0 debuted July 11, 2008. iPhone users received the update for free, while iPod Touch users had to pay for the update. The second major update to the operating system, iPhone OS 3.0, was released June 17, 2009. iPhone OS 3.0 added features such as cut, copy, and paste; data tethering; and push notification support. As with the prior major release, iPhone users received the update for free, while iPod Touch users had to pay for the update. iOS 4.0 was made available to the public on June 21, 2010. It was the first major iOS release to drop support for some devices; the first generation iPod Touch and original iPhone are not supported in iOS 4.0. The iPhone 3G and second generation iPod Touch had limited functionality under iOS 4.0, while the iPhone 4, iPhone 3GS, third generation iPod Touch, and fourth generation iPod Touch had full functionality under iOS 4.0. The major features introduced in iOS 4.0 included iBooks, FaceTime, and multitasking. iOS 5.0 was previewed to the public on June 6, 2011, and was released on October 12, 2011.^[9]

Apple has received criticism for charging iPod Touch owners for major iOS updates that iPhone owners receive for free, as well as excluding certain features from the iPod Touch software that are included in the iPhone.^[10][11] Apple has said that they can add features for free to the iPhone because the revenue from it is accounted for on a subscription basis under accounting rules, rather than as a one time payment.^[12] At WWDC in June 2010, Steve Jobs announced that Apple had "found a way" to make subsequent OS upgrades available free to iPod Touch owners. However, iOS 4.0 and onwards isn't available for the first generation iPod Touch, and some features are only available for the 32 and 64 GB third generation iPod Touch released in September 2009 and the fourth generation iPod Touch released in 2010.

In June 2011, iOS 5, the fifth major release of iOS software, was announced at Apple's WWDC 2011. There will be added features in the new update, including notifications, messaging and reminders. On October 4, 2011 at Apple's "Let's Talk iPhone" event iOS 5 and the iPhone 4S were announced to the public with many new features such as Siri, iMessage and wireless upgrades; this software upgrade was released on October 12, 2011. No new iPod Touch specific changes were announced yet, other than a price drop and the option to choose between black and white.^[13]

Comparison to the iPhone[link]

The iPod Touch and the iPhone share essentially the same hardware and run the same iOS operating system. The iPod Touch lacks some of the iPhone's features and associated apps, such as access to cellular networks and the built-in compass. Older models also lacked speakers and cameras. Although the SMS and Phone apps are included on the iPod Touch software, they are disabled and therefore not visible. Also, the sleep/wake button was on the opposite side, up until the release of the iPod Touch 4th generation. Since it doesn't need cellular components, the iPod Touch is slimmer and lighter than the iPhone. Steve Jobs once referred to the iPod Touch as "training wheels for the iPhone".^[14]

Another major difference is the quality of the back camera compared to the iPhone. While the iPod Touch, like the iPhone, allows for HD video recording, the iPhone camera still delivers higher quality photos to that of the iPod's.^[15] Also, the iPod Touch camera lacks a flash for low light photography.

Requirements[link]

• iTunes 10 or later (iTunes 10.5 for iOS 5.0+)
• Mac OS 10.5 or later (10.5.8 for iOS 5.0+)
• Windows XP Home or Professional with Service Pack 3 or later (Vista or later to use iCloud)

Setup and synchronization[link]

For iPod Touch units bought before October 12, 2011, users must own a Mac or PC computer to be able to use the iPod. Users then must install iTunes and connect the iPod through a USB port. The iPod will then be set up in iTunes. New iPods bought after October 12, 2011 have iOS 5.0 preloaded, and allow activation wirelessly, without the need of a PC or Mac.^[16]

Earlier iPod Touch units must be plugged into a computer to be synced. This will charge the iPod Touch and sync the music library, videos, pictures and back up data. iOS 5 enables the user to do all this from the device and send it to the iCloud service. It is not manageable by Mac OS X 10.4 Tiger.^[17]

Battery charging[link]

Starting with the second generation, iPod Touch can only be charged from the 5 V pin of the dock connector while most prior iPod models (including the original iPod Touch) could also be charged from the 12 V pin for FireWire power.^[18] This change dropped support for charging in vehicles equipped with a FireWire-based iPod connection. Most aftermarket manufacturers of such equipment offer cables and/or adapters which convert the vehicle's 12 V to 5 V.

Purchasing content[link]

To purchase content on the iPod Touch, the user must create an Apple ID or have an existing account. With this account you may download music and videos from the iTunes Store, apps from the App Store, or books from the iBookstore. An Apple ID account created without a credit card can be used to get free content.

Third-party applications[link]

Earphones with an external microphone and controller are compatible with the 2nd generation iPod Touch, and are shipped with the 3rd generation iPod Touch devices (excluding the 8 GB model).

The only official way to obtain third-party applications for the iPod Touch is Apple's App Store, which is a branch of iTunes Store. The App Store application, available in all versions of iOS from 2.0 onwards, allows users to browse and download applications from a single online repository (hosted by Apple) with the iTunes Store. To develop such software, a software development kit (SDK) was officially announced on March 6, 2008, at an Apple Town Hall meeting.^[19] The iOS SDK allows making applications for the iPhone and iPod Touch after paying a fee to join the development team. The developer can then set the price for the applications they develop and will receive 70% of money earned. Apple retains 30% of the sale price with no minimum fixed fee.

Hacks[link]

A month after the first iPod Touch was released in September 2007, hackers released JailbreakMe 1.0 (also called "AppSnapp") to jailbreak iPhone OS 1.1.1 on the iPhone and iPod Touch,^[20][21] enabling users to install third-party programs on their devices (otherwise unavailable since the App Store was not part of iOS yet). These third-party programs could use additional functionality not supported by Apple, such as enabling multitasking, applying themes to the home screen, or enabling a battery percentage indicator. As of December 2011, each version of iOS on iPod Touches can be jailbroken, from 1.1.1 to 5.1 (with a tethered jailbreak for versions 4.3.4 through 5.0), using various tools including PwnageTool and redsn0w (see iOS jailbreaking for details). Apple's warranty statement implies that an iPod Touch after jailbreaking or other modification made by unofficial means is not covered by Apple's warranty. Jailbreaking is a violation of the Terms and Conditions for using iOS. The jailbreaking process is easily undone by performing a restore through iTunes.^[22][23]

Models[link]

Model	Picture	Capacity	RAM	Connection	Original release date	Minimum OS to sync	Rated battery life (hours)
1st generation		8 GB 16 GB 32 GB[24]	128 MB[25]	USB via dock connector (FireWire for charging only)[18]	September 5, 2007	Mac: 10.4 or later Win: XP, Vista, 7	audio: 22 video: 5
	The first generation iPod Touch was launched on September 5, 2007, at an event called The Beat Goes On.[26] First iPod with Wi-Fi and a multi-touch interface. Features Safari web browser and wireless access to the iTunes Store and YouTube. Later added 16 and 32 GB versions, 32 GB in Feb 2008. iPhone OS 2.0 and App Store access require an upgrade fee. iOS 4.0 and later are not supported because they require newer hardware.
2nd generation		8 GB 16 GB 32 GB[24]	128 MB[25]	USB via dock connector	September 9, 2008	Mac: 10.4 or later Win: XP, Vista, 7	audio: 36 video: 6
	The second generation iPod Touch featured a new tapered chrome back with Nike+ functionality, volume buttons, and built-in speaker added, It was unveiled on September 9, 2008, at the "Let's Rock" keynote presentation. iPhone OS 2.0 and App Store access standard. Bluetooth support added but not made active until iPhone OS 3.0, which requires an upgrade fee. Support for external microphone and remote added. The 8 GB model was re-introduced alongside the 3rd generation iPod Touch in September 2009, and included the newer iPhone OS 3.1. iOS 4 was released for free for second generation iPod Touch models June 21, 2010, but included a limited selection of features. Future iOS software updates no longer supported (as of iOS 4.2.1). The 2nd generation also comes with the chrome frame seen on the iPhone 3G, making the two almost identical when viewed from the front. However, there are some notable differences, as there is no speaker above the screen, no silent/ringer switch, the back is metal, and the sleep/wake button is on the other side. The 2nd generation also supports audio input when a headphone or earphone with microphone abilities is plugged into the audio output (headphone) jack. The iPod Touch 2.0 Software Update supports WPA2 Enterprise with 802.1X authentication.[27] The iPhone OS 3.0 update unlocked Bluetooth ability on the 2nd generation iPod Touch, as the included Wi-Fi chip (Broadcom BCM4325) has Bluetooth support.[28][29] The 2nd generation iPod Touch is said to have a yellower cast/tint to the display, as compared to the iPhone or the original iPod Touch.[30] The applications processor inside the 2nd generation iPod Touch runs slightly faster than the processor inside the iPhone 3G, but slower than the iPhone 3GS.[31][32] The first generation iPod Touch works with all "Made for iPod" peripherals, but certain changes that Apple made to the 2nd generation iPod Touch prevent some existing peripherals from recharging the updated player.[33] The Google Street View feature added on iPhone firmware version 2.2 is absent from the same version of firmware released on the iPod Touch,[34] but is found in the 3.0 update. The 2nd and 3rd generation iPod Touch can be updated to iOS 4.x for free, but cannot take advantage of features using the iPhone's camera or GPS receiver. The 2nd generation iPod Touch is further unable to take advantage of iOS 4's multitasking and home screen background customization features, unless the firmware is modified (through jailbreaking), and cannot be upgraded beyond iOS version 4.2.1. Later updates of iOS beyond 4.2.1 are no longer supported due to the outdated hardware. The iPod Touch (2nd generation) is model A1288.
3rd generation		32 GB 64 GB[24]	256 MB	USB via dock connector	September 9, 2009	Mac: 10.4 or later Win: XP, Vista, 7	audio: 30 video: 6
	The 32 GB and 64 GB models were updated to include the upgraded RAM, CPU and GPU internals from the iPhone 3GS; they include voice control support, VoiceOver, included iPhone OS version 3.x, and bundled remote earphones with microphone. The 3rd generation iPod Touch with iPhone OS 3.1 was announced and subsequently released on September 9, 2009.[35] Apple's published technical specifications for the 3rd generation iPod Touch only include references to the 32 GB and 64 GB models.[36] Following the introduction of the 3rd generation iPod Touch, Apple also continued offering the 2nd generation 8 GB version, upgraded to the same iPhone OS version as the new 3rd generation devices. The iPod Touch (3rd generation) is model A1318. Apple as well sold many refurbished iPod Touch 2nd generation models with the 3rd generation software effectively making them a 3rd generation unit. These can be identified by having a maximum installable version of iOS 4.2.1.[citation needed]
4th generation		8 GB 32 GB 64 GB[24]	256 MB[37]	USB via dock connector	September 1, 2010	Mac: 10.5 or later Win: XP, Vista, 7	audio: 40 video: 7
	Apple unveiled the 4th generation iPod Touch on September 1, 2010. It features a front-facing camera for FaceTime, the iPhone 4's Retina display without an IPS screen,[38] support for recording 720p video and 960 x 720 still photos via a back camera,[5] Apple's A4 chip, a built-in microphone, and a 3-axis gyroscope. The display is glossier than in previous generations.[citation needed] On October 12, 2011, the iPod Touch 4th-generation began shipping with iOS 5.0 pre-installed for PC-free activation. Also, an additional color option, white, was made available.

Specifications[link]

See also[link]

	Book: Apple Inc.
Wikipedia books are collections of articles that can be downloaded or ordered in print.

• Comparison of iPod managers
• Comparison of portable media players
• List of portable media players with Wi-Fi connectivity
• List of iOS devices

References[link]

External links[link]

Wikimedia Commons has media related to: iPod touch

Apple Inc. portal

• Official website
• Technical Specifications (all models)

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