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Option ROMs are also used to extend the BIOS or to add other firmware services to the BIOS. In principle, an option ROM could provide any sort of firmware extension, such as a library of video graphics subroutines, or a set of PCM audio processing services, and cause it to be installed into the system RAM and optionally the CPU interrupt system ...
Rosemary Francis FREng is a British engineer and technologist. She is best known for her work in the field of supercomputers and is Chief Scientist at software company, Altair Engineering . Francis obtained her PhD in computer architecture , while studying at the University of Cambridge . [ 1 ]
Notable custom-firmware projects for wireless routers.Many of these will run on various brands such as Linksys, Asus, Netgear, etc. OpenWrt – Customizable FOSS firmware written from scratch; features a combined SquashFS/JFFS2 file system and the package manager opkg [1] with over 3000 available packages (Linux/GPL); now merged with LEDE.
Firmware hacks usually take advantage of the firmware update facility on many devices to install or run themselves. Some, however, must resort to exploits to run, because the manufacturer has attempted to lock the hardware to stop it from running unlicensed code. Most firmware hacks are free software.
Proprietary firmware poses a significant security risk to the user because of the direct memory access (DMA) architecture of modern computers and the potential for DMA attacks. [citation needed] Theo de Raadt of OpenBSD suggests that wireless firmware are kept proprietary because of poor design quality and firmware defects.
Tomato is a family of community-developed, custom firmware for consumer-grade computer networking routers and gateways powered by Broadcom chipsets.The firmware has been continually forked and modded by multiple individuals and organizations, with the most up-to-date fork provided by the FreshTomato project.
On smartphones, tablets, and other devices, an over-the-air update is a firmware or operating system update that is downloaded by the device over the internet. Previously, users had to connect these devices to a computer over USB to perform an update. These updates may add features, patch security vulnerabilities, or fix software bugs.
coreboot, formerly known as LinuxBIOS, [5] is a software project aimed at replacing proprietary firmware (BIOS or UEFI) found in most computers with a lightweight firmware designed to perform only the minimum number of tasks necessary to load and run a modern 32-bit or 64-bit operating system.