From the outset, Mac OS X and macOS have been designed around a
relatively small kernel which is given additional capabilities by
kernel extensions. The kernel itself runs at a highly privileged
level, giving it most direct access to resources such as the
processor, memory and hardware devices, often known as
Ring 0. Kernel extensions operate at a close level of privilege
(Ring 1) so that they too can make hardware such as ethernet and
Thunderbolt ports work, and they’re loaded once the kernel itself is
running, before the rest of macOS. Big Sur’s kernel has just over
550 standard kernel extensions which extend it to make everything
else work.
Source: Extensions are moving away from the
kernel,
an article by Howard Oakley.
The most popular programming approach within the declarative family
is a functional paradigm, with its more conservative cousin — pure
functional programming. Writing programs in this manner requires
using composable functions encompassing conditions and
expressions, preferably without side effects. Those functions are
treated as first-class citizens and thus are valid arguments for
other functions. It is common to construe logic where one parameter
(data) is treated as an argument for the other parameter
(function). This concept is present in implementations of map,
reduce or fold, widespread across the programming world, and
based on a functional approach.
Source: The idea behind functional
programming,
an article by Michał Skoczylas.
In realtime applications
it goes without saying that we need information from our servers as
soon as it’s available – and, fundamentally, the classic HTTP
request/response paradigm isn’t up to the job. That’s because the
server will be silent, new data or not, unless or until a consumer
requests an update.
Source: WebSockets
vs. HTTP, an article by
Martin Fietkiewicz.
Stories of Your Life and Others delivers dual delights of the
very, very strange and the heartbreakingly familiar, often
presenting characters who must confront sudden change—the inevitable
rise of automatons or the appearance of aliens—with some sense of
normalcy. With sharp intelligence and humor, Chiang examines what it
means to be alive in a world marked by uncertainty, but also by
beauty and wonder. An award-winning collection from one of today's
most lauded writers, Stories of Your Life and Others is a
contemporary classic.
In the evening I started in Stories of Your Life and
Others
by Ted Chiang.
I have already seen the movie "Arrival" which I liked a lot so I look
forward to read this short story collection.