What is a meme & how does it work?

A meme is typically a photo or video, although sometimes it can be a block of text. When a meme resonates with many people, it's spread via social platforms like Twitter, Facebook, Instagram, texting, and more. The more a meme is spread, the greater the cultural influence it has.

What does /Dev/Mem do?

@MatthewLock, /dev/mem does it. It is a kernel driver that lets one read and write to arbitrary memory locations. It provides access to the system's physical memory. The mem (4) man page explains more about what /dev/mem is. Yes -- it could cause all sorts of problems. A reboot should fix you, but bad things can happen very easily. Be careful! :-)

What is the difference between /Dev/Mem and /dev/kmem?

dev/mem provides access to system's physical memory. The byte addresses in /dev/mem are interpreted as physical addresses. /dev/kmem is similar to /dev/mem but it does not give access to any physical memory but we can access the kernel's virtual address space.

Is /Dev/Mem a physical address?

The byte addresses in /dev/mem are interpreted as physical addresses. /dev/kmem is similar to /dev/mem but it does not give access to any physical memory but we can access the kernel's virtual address space. Welcome to Super User!