Jamie and Adam demonstrate how GPUs solve specific tasks faster in parallel than they can be executed on general purpose CPUs sequentially, by painting a Mona Lisa with a massively parallel paint gun.

Definitions: CPU (Central Processing Unit): The “brain” of a computer, the CPU is where data manipulation actually takes place. The results of these manipulations are then stored in the computer memory.   GPU (Graphics Processing Unit): A specialized processor that offloads 3D or 2D graphics rendering from the CPU. Their highly parallel structure makes them more effective than general-purpose CPUs for a range of complex algorithms.  Wiki