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It is referred to as non-volatile memory or NVRAM because, after the system loses power, it does retain state by virtue of the CMOS battery. When the battery fails, BIOS settings are reset to their defaults. The battery can also be used to power a real time clock (RTC) and the RTC, NVRAM and battery may be integrated into a single component.
On the same date, the 13-inch M2 MacBook Air received a price cut from $1199 to $1099. [22] On March 4, 2024, Apple announced a refreshed M3 MacBook Air in both 13-inch and 15-inch sizes. This model retains the same design as the M2 MacBook Air, but adds support for two external displays when the lid is closed.
CMOS inverter (a NOT logic gate). Complementary metal–oxide–semiconductor (CMOS, pronounced "sea-moss ", / s iː m ɑː s /, /-ɒ s /) is a type of metal–oxide–semiconductor field-effect transistor (MOSFET) fabrication process that uses complementary and symmetrical pairs of p-type and n-type MOSFETs for logic functions. [1]
Steve Jobs introduced the MacBook Air during Apple’s keynote address at the 2008 Macworld conference on January 15, 2008. [4] The first MacBook Air was a 13.3-inch model, initially promoted as the world's thinnest notebook at 1.9 cm (0.75 in) (a previous record holder, 2005's Toshiba Portege R200, was 1.98 cm (0.78 in) high).
As part of the Mac transition to Intel processors, Apple released a 13-inch laptop simply named "MacBook", as a successor to the PowerPC-based iBook series of laptops. . During its existence, it was the most affordable Mac, serving as the entry-level laptop that was less expensive than the rest of the Mac laptop lineup (the MacBook Pro portable workstation, and later the MacBook Air ultra-port
There were problems with batteries on some 2007 models not being read by the MacBook. This is caused by a logic board fault and not a fault with the battery. [citation needed] In February 2010, Apple announced a recall for MacBooks bought between 2006 and 2007 for hard drive issues. This is caused by heat and other problems. [citation needed]
One such smartphone injection was demonstrated on the Symbian OS at MalCon, [13] [14] a hacker convention. A USB device firmware hack called BadUSB was presented at the Black Hat USA 2014 conference, [ 15 ] demonstrating how a USB flash drive microcontroller can be reprogrammed to spoof various other device types to take control of a computer ...
The Retina MacBook Air was released in October 2018, with reduced dimensions, a Retina display, and combination USB-C/Thunderbolt 3 ports for data and power. The Intel-based MacBook Air was discontinued in November 2020 following the release of the first MacBook Air with Apple silicon based on the Apple M1 processor.