Computers with only RAM memory

It's not possible to have a computer that works only with RAM, without a CPU (Central Processing Unit) or GPU (Graphics Processing Unit).

Here's why:

CPU (Central Processing Unit): The CPU is the "brain" of the computer. It executes all instructions, processes data, and coordinates all components. Without a CPU, a computer can't do anything at all; it's the absolute core for any calculation or operation.

RAM (Random Access Memory): RAM is like a short-term memory for the computer. It temporarily stores data that the CPU needs quick access to. RAM needs the CPU to know what data to store and retrieve. Without a CPU, RAM is useless because there's no one to use or manipulate the stored information.

GPU (Graphics Processing Unit): The GPU is responsible for rendering images and videos you see on your screen. While many modern CPUs now have integrated graphics (iGPUs), meaning the GPU functionality is built into the CPU, some form of graphics processing is still essential to display anything on a screen. Without a GPU (or iGPU), you wouldn't get any visual output.

In essence, you always need a CPU for a computer to function. A separate GPU is often needed for demanding graphical tasks like gaming or video editing, but basic graphical functionality (via an iGPU) is necessary for any visual output.

Therefore, the concept of a computer working solely with RAM is technically impossible.