What brand computer BIOS chip in the prevention of virus attacks a unique technology?

Users questions: What brand computer BIOS chip in the prevention of virus attacks a unique technology? I know the hardware to prevent virus attacks BIOS chip technology: 1. Rub on the motherboard to set the new switch (anti-write switch). 2. BIOS on the motherboard chip set 2 (dual BIOS technology). I know that the use of BIOS chip technology to protect the unique brand of machine are: 1. Lenovo's "invincible lock" technology: Anti-rub on the motherboard to set the new switch. Please know that friend to add: what are the brands which models have "to prevent virus attacks in the hardware BIOS chip technology?"
Experts answer:. . . Now machine Device has a bar. . No matter the brand or assembled. . . Motherboards with this feature seems to
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