Time for the book club!

Chapter 3 and 4 were kind of long but because they went over things that aren't new it was quick to read.

Chapter 3: Computer Architecture

A chapter about the generic architecture of computers. From the CPU
pipelines, to memory hierarchies, caches, algorithms for eviction,
buses and peripherals.
Nothing really special here, but a good refresher.

Chapter 4: The Operating System

We finally dive into an overview of what operating systems are
about: a standard layer of abstraction over the hardware that allows
for the sharing of resources.

We're presented with the different kernel types: monolithic vs
microkernel, separation with user space, and how to achieve that with
privileges, be it hardware rings or virtual memory.

NB: I noticed there are a lot of typos in that book. But the content is
still great.