The memory map of the original 8086 computer with its base and extended memory made the original PC rather straightforward, but also posed countless issues for DOS-based applications as they tried to ...

If you played MS-DOS games in the 1990s, you should have seen the 'DOS/4GW' banner at least once. Experts with detailed knowledge explain on blogs what tools DOS/4GW did and how they functioned. When ...

Doug asked readers recently what "protected mode" used to mean back in the day. Here are some of your responses: Wow. That is old, old, old, back in the stone ages of the big hair mid-'80s. Most ...

For most people, you turn on your computer, and it starts the operating system. However, the reality is much more complex as [Thasso] discovered. Even modern x86 chips start in 16-bit real mode and ...

Security researchers from Eclypsium have detailed yesterday a new variation of the Spectre attack that can recover data stored inside a secure CPU area named the System Management Mode (SMM). For ...