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The iPhone [5] (retroactively referred to as the iPhone 2G [6] or iPhone 1 [7]) is the first iPhone model and the first smartphone developed and marketed by Apple Inc. After years of rumors and speculation, it was officially announced on January 9, 2007, [ 8 ] and was released in the United States on June 29, 2007.
The first screen protector was designed and patented by Herbert Schlegel in 1968 for use on television screens. [1] In 1990s, the CRT screen protectors were used on CRT monitors for anti-glare and anti-radiation purposes. [citation needed] Later, they were adapted for use on LCD monitors.
The iPhone 3G sported a 3.5 in (89 mm) capacitive touchscreen with a 480×320 resolution at 163 ppi. The scratch-resistant glass sits on top of the display. Just like the original iPhone, the touchscreen was designed for a bare finger, or multiple fingers for multi-touch sensing. The device featured the same sensors as its predecessor.
Apple iPhone 13: 146.7 mm × 71.5 mm × 7.7 mm 174 g 3227 mAh Lightning, 20 W Wireless, 15 W 6.1", 2532×1170, OLED Apple iPhone 13 Pro: Apple 5-core
Even if mobile phones are able to use 3G or 4G (which have much stronger encryption than 2G GSM), the base station can downgrade the radio communication to 2G GSM and specify A5/0 (no encryption). [20] This is the basis for eavesdropping attacks on mobile radio networks using a fake base station commonly called an IMSI catcher.
This turned out to be the first iPhone (iPhone 2G). On January 9, 2007, Steve Jobs announced the first iPhone at the Macworld convention, receiving substantial media attention. [33] On June 11, 2007, Apple announced at the Apple's Worldwide Developers Conference that the iPhone would support third party applications using the Safari engine.