In the last 11 years, a lot has changed in this field. That's to be expected in a technology that is driven by Moore's Law, where complexity doubles every 18 months or so. So we have a factor of 7 or so, but actually the rate of change is increasing.Where we are today is machines built with multiple cores on one chip, each core being a complete computer. The same communication schemes discussed in this book are used, with the same trade-off's, shared memory or communication channel....

Pronounced RISK-Five, RISC-V is the latest implementation of the MIPS architecture, in an open source configuration. The project kicked off in 2010 at the University of California, Berkeley.It had been announced in 2018. Multiple companies now offer RISC-V chips, and the architecture is compatible with several FPGA's. The RISC-V architecture is making inroads on the popular ARM embedded architecture.There have been numerous space missions using the MIPS architecture. One of...

I am assuming a basic knowledge of computer architecture, but most of what you need to know is also included. The details of computer math are presented in an appendix. I have collected together a representative list of reference books and interesting titles in the bibliography. In a quickly evolving field such as embedded computers, new and relevant material is emerging all the time. This book represents a current snapshot of the field. The plan is to update the material at reasonable int...

This book traces the history and technology of several Irons works in pre-colonial Maryland, starting with the Colony of Maryland. The collected information is the result of a long chain of research by tireless researchers in dingy colonial era archives, and in dismal swamps.It tell the story of Richard Snowden, coming to the Colony of Maryland as an endentured servant, and eventually building a mansion for himself and all of his daughters.

This book discusses the resources and infrastructure that NASA developed and applied to support space missions in the early 1960's. When the first U. S. satellite, Vanguard, went up in 1958, there was no world-wide network of tracking stations. Thus, a series of ground stations, tracking ships, and tracking aircraft were required. When the crewed capsules of the Mercury, Gemini, and Apollo programs splashed down in the ocean, they were retrieved by U. S. Naval vessels for NASA. NASA has a ...

The book discusses the topic of the search for Extraterrestrial life, that is, life not on Earth. The search is taking place in the planets and moons of our solar system, and on Exoplanets, elsewhere in our galaxy. The problem is, we only have 1, albeit vastly diversified, example of life. We can conjecture that life only has a chance in certain thermal ranges (the Goldilocks zone), so that's where we look. Unfortunately, strange life was observed at deep ocean thermal vents, with chemical...

Multicore computer architecture uses two or more (up to 100's) of cpu's, configured into a multiprocessor on a single chip. Each cpu can fetch and execute its own instructions, and has a method to communicate with the other cpu's. If an embedded chip has a cpu, memory, and I/O on a single chip, a multicore architecture has an entire network of parallel processors on a single chip. In the same sense that a computer used to fill a room, then was reduced to a box, then to a chip, we now see a...

Let me be clear at the beginning – when I say crewed spacecraft. I mean spacecraft with humans aboard. Young, or old, male or female, space travel is an equal opportunity hazardous endeavor. As of this writing, three spacefaring nations have put 559 humans into space, the Soviet Union/Russia, the United States, and China. Numerous astronauts from many other nations have hitched a ride. We are going to discuss historical, ongoing, and future efforts of getting people to space. We will menti...

A port is a point of departure or arrival. This book covers the topic of Spaceports. Like an airport or a train station, these are hubs that people and cargo come to for a transportation system. Some launch sites allow for vertical launch, and some allow for horizontal take off and landing. These are indistinguishable from airports, although the runways are usually longer. Spaceports are the gateway to orbit for people and supplies. They are key to continued exploration of the solar system...

This book covers the topic of cotton production in Maryland in the 18th century Maryland, using Southern cotton. The process continued into the 20th century. The technology for automating the process was developed in England, and perfected in New England. Industrialization was not well developed in the South, but the region was good for cotton growth. Export of cotton to Northern factories, England, and France was a major money-maker for plantation owners. This book focuses on the Savage F...

This book covers the topic of Tourists trips to Space, which are not that far away, and some have already happened. Space travel is no longer the exclusive privilege of nation-states, and trained crew. For a while now, it has been open to health adventurers with lots of money. As more facilities are built to address the demand, less expensive options will become available. Space will never be perfectly sate, but it will always be an exotic location.In 2004, the first privately buil...

A port is a point of departure or arrival. This book covers the topic of Spaceports. Like an airport or a train station, these are hubs that people and cargo come to for a transportation system. Some launch sites allow for vertical launch, and some allow for horizontal take off and landing. These are indistinguishable from airports, although the runways are usually longer. Spaceports are the gateway to orbit for people and supplies. They are key to continued exploration of the solar system...