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A smart battery or a smart battery pack is a rechargeable battery pack with a built-in battery management system (BMS), usually designed for use in a portable computer such as a laptop. [ 1 ] [ 2 ] In addition to the usual positive and negative terminals, a smart battery has two or more terminals to connect to the BMS; typically the negative ...
This is often called the CMOS battery or BIOS battery. The original IBM AT through to the PS/2 range, used a relatively large primary lithium battery, compared to later models, to retain the clock and configuration memory. [2] These early machines required the backup battery to be replaced periodically due to the relatively large power consumption.
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. The name CMOS memory comes from the technology used to make the memory, which is easier to say than NVRAM. [3]
The vast majority of laptops on the market are manufactured by a small handful of Taiwan-based original design manufacturers (ODM), although their production bases are located mostly in mainland China. Quanta Computer pioneered the contract manufacturing of laptops in 1988. By 1990, Taiwanese companies manufactured 11% of the world's laptops.
Lenovo ThinkPad 410. The Lenovo ThinkPad T410 is a laptop from the ThinkPad series manufactured by Lenovo. [1] [2] The Lenovo ThinkPad T410s was also released.[3] [4] In 2014 Lenovo issued a product recall, dated April 1, on specific ranges of Thinkpad series batteries which had shipped from October 2010 to April 2011 due to a potential fire hazard, including some shipping with or for the ...
The first memory location the CPU tries to execute is known as the reset vector. In the case of a hard reboot, the northbridge will direct a code fetch request to the BIOS located on the system flash memory. For a warm boot, the BIOS will be located in the proper place in RAM and the northbridge will direct the reset vector call to the RAM. In ...
Lenovo IdeaPad Y40 was announced in the US on January 5, 2014. Processor: Up to 5th Gen Intel Core i7; Memory: Up to 16 GiB DDR3L; Graphics: Up to AMD Radeon M275; Storage: Up to 1 TB HDD or 1 TB + 8 GB hybrid SSHD; Battery: Up to 5 hours' battery life; Display: 14.1" 1920 × 1080 LED-backlit TN LCD; Operating system: Microsoft Windows 8.1
IBM sold a mouse with a pointing stick in the location where a scroll wheel is common now. A pointing stick on a mid-1990s-era Toshiba laptop. The two buttons below the keyboard act as a computer mouse: the top button is used for left-clicking while the bottom button is used for right-clicking.