Ipod Touch Generation Differences - 1G, 2G and 3G
Manufacturer Apple Inc.
Type Portable media player/PDA
Retail availability 1st generation: September 13, 2007
2nd generation: September 9, 2008
3rd generation: September 9, 2009 - present
Media Flash memory
1st/2nd generation: 8, 16 and 32 GB
3rd generation: 32 or 64 GB
Operating system iPhone OS
1st generation: 1.1 originally, 3.1.3 (build 7E18) with Software Update
2nd generation: 2.1.1 originally, 3.1.3 (build 7E18) with Software Update
3rd generation: 3.1.1 originally, 3.1.3 (build 7E18) with Software Update
Power Lithium-ion battery
1st generation: Audio - 22 hours, Video - 5 hours
2nd generation: Audio - 36 hours, Video - 6 hours
3rd generation: Audio - 30 hours, Video - 6 hours
CPU 1st generation: ARM11 620 MHz (underclocked to 400 MHz, then 412 MHz)
2nd generation: ARM11 620 MHz (underclocked to 533 MHz),[1] with internal ARM7 core for Jazelle acceleration
3rd generation: ARM Cortex-A8 833 MHz (underclocked to 600 MHz)
Memory 1st/2nd generation: 128 MB DRAM
3rd generation: 256 MB DRAM
Display 320 × 480 px, 3.5 in (89 mm), 2:3 aspect ratio, 262,144-color LCD at 163 pixels per inch (ppi)
Graphics 1st/2nd generation: PowerVR MBX Lite[2]
3rd generation: PowerVR SGX
Input Multi-touch touchscreen display, ambient light sensors, 3-axis accelerometer, volume buttons since 2nd generation, voice control on 3rd generation
Connectivity Wi-Fi (802.11b/g)
USB 2.0/Dock connector
Bluetooth (3rd generation; 2nd generation with minimum iPhone OS 3[3])
Dimensions 1st generation:
4.3 in (110 mm) (h)
2.4 in (61 mm) (w)
0.31 in (7.9 mm) (d)
2nd/3rd generation:
4.3 in (110 mm) (h)
2.4 in (61 mm) (w)
0.33 in (8.4 mm) (d)
Weight 1st generation: 120 grams (4.2 oz)
2nd/3rd ge
The 2nd generation iPod Touch, featuring external volume controls, a built-in speaker, a contoured back, built-in Nike+, Bluetooth support, and the ability to connect a microphone, was unveiled on September 9, 2008, at the "Let's Rock" keynote presentation.
The 3rd generation iPod Touch with the new iPhone OS 3.1 was announced and subsequently released on September 9, 2009.[9] It is available with 32 or 64 GB of flash memory. Apple also continued offering the 2nd generation 8 GB version.[10] The new 3rd generation iPod Touch[11] includes faster hardware (the same microprocessors, graphics engine, and RAM as the iPhone 3GS), a slightly lower battery life, voice control, light sensor, and bundled earphones with a remote and microphone.
The specifications as listed on Apple's website for the iPod Touch are:[28][36]
Screen material: glass (arsenic free)
Screen size: 3.5 in
Screen resolution: 320x480 px at 163 ppi, with 3:2 aspect ratio
Input method: Multi-touch screen interface, Sleep/Wake button, Accelerometer, Home button, Volume Rocker buttons (2nd/3rd generation), voice control (3rd generation)
Operating system: iPhone OS (current version 3.1.3, build 7E18)
Storage: 8, 32 and 64 GB flash memory
CPU: Initially ARM 400 MHz, but now 412 MHz for 1st generation, 533 MHz[1] for 2nd generation and ARM Cortex-A8 833 MHz underclocked to 600 MHz for 3rd generation
GPU: PowerVR MBX Lite in 2nd generation[37] and PowerVR SGX GPU for 3rd generation
RAM: 128 MB DRAM in 1st & 2nd generation and 256 MB DRAM in 3rd generation
Wi-Fi (802.11 b/g)
Built-in rechargeable, non-removable lithium battery with up to 6 hours of video playback, an up to 36 (30 in 3rd generation) hours of audio playback, times vary.
Built-in audio speaker (except in 1st generation)[38]
3.5 mm audio output
Thanks, wikipedia.orgRead full review
