1. What is BIOS The term BIOS first appeared in 1975, and it stands for Basic Input Output System. It truly gained prominence with the launch of the IBM PC in 1981, marking the beginning of a tumultuous history. The IBM PC system generally consists of three parts: hardware, software, and the middleware BIOS, with … Read more
The firmware system based on the ARMv8 architecture The firmware system based on the ARMv8 architecture consists of multiple layers and modules designed to provide secure, flexible, and efficient booting and management for ARMv8-based servers and embedded devices. Its design structure typically includes the following main components and stages: 1. Overview of Firmware Architecture The … Read more
Click the above “Public Account” to subscribe! Recently, apart from the rampant news about the COVID-19 pandemic, the most attention-grabbing topic has undoubtedly been the war in Ukraine. Contrary to most people’s expectations, the war, which was thought to be one-sided, has become prolonged, much like the “temporary” lockdown in Shanghai — endless. Regardless of … Read more
Installing OpenBSD 7.3 on Raspberry Pi 4 OpenBSD supports the following Raspberry Pi related devices: • Raspberry Pi 3 • Raspberry Pi 3 Model B+ • Raspberry Pi 4 • Raspberry Pi 400 • Raspberry Pi Compute Module 4 Supported devices include Ethernet cards, WIFI, TF cards, and USB 3.0. Installing OpenBSD 7.3 on Raspberry … Read more
One advantage of UEFI is its modularity, meaning you can write a module that, once compiled, can be inserted into an existing BIOS and executed. Previously, the implementation methods of each IBV varied greatly, and there was almost no way to achieve universality except for inserting in a special form like PCI ROM. The demonstration … Read more