Deploy and Manage Your Containers in the Next-Generation Container OS
Use immutable infrastructure to deploy and scale your containerized applications. Project Atomic mainly comprises Atomic Host, Atomic Workstation, and various container tooling. cloud native platforms.

CPU History Museum for Intel CPUs, AMD Processor, Cyrix Microprocessors, Microcontrollers and more.
Also has information about processors used in space missions:
http://www.cpushack.com/space-craft-cpu.html

chrony is a versatile implementation of the Network Time Protocol (NTP). It can synchronise the system clock with NTP servers, reference clocks (e.g. GPS receiver), and manual input using wristwatch and keyboard. It can also operate as an NTPv4 (RFC 5905) server and peer to provide a time service to other computers in the network.

There a number of interesting articles such as
- The Mystery of the Grazing Goat  http://www.mathpages.com/home/kmath074/kmath074.htm
- On The Solution of the Cubic Equation  http://www.mathpages.com/home/kmath444/kmath444.htm
- Infinite grid of resistors, ...

For a good example, read http://www.evanmiller.org/dont-kill-math.html

Abstract.
ElsieFour (LC4) is a low-tech cipher that can be computed by hand;
but unlike many historical ciphers, LC4 is designed to be hard to break. LC4 is intended for encrypted communication between humans only, and therefore it encrypts and decrypts plaintexts and ciphertexts consisting only of the English letters A through Z plus a few other characters. LC4 uses a nonce in addition to the secret key, and requires that different messages use unique nonces. LC4 performs authenticated encryption, and optional header data can be included in the authentication. This paper defines the LC4 encryption and decryption algorithms, analyzes LC4’s security, and describes a simple appliance for computing LC4 by hand.

An extended version called LS47 can be found on https://github.com/exaexa/ls47, which includes a 3D-printable model of the tiles.

The links are associated with a timeline visualization, a curated data set, and a repository detailing the evolution of 15,596 unique documented facilities (commands, system calls, library functions, device drivers, etc.) across 93 major Unix releases tracked by the Unix history repository.

Skywave Linux is a 64 bit system, built on a base of Ubuntu 16.04 LTS, uses the MATE desktop environment, and draws on the capabilities of Ubuntu: software updating, graphics, system resource management, etc. It is the additional digital signal processing, networking, and signal decoding applications that set Skywave Linux apart from stock Ubuntu Linux. The default username is skywave and there is no password in the default system.

On-line collection of small computers from 1950-1990.