In computer engineering, computer architecture is a set of rules and methods that describe the functionality, organization, and implementation of computer systems. Some definitions of architecture define it as describing the capabilities and programming model of a computer but not a particular implementation. In other definitions computer architecture involves instruction set architecture design, microarchitecture design, logic design, and implementation.
The reason grandparents get up at dawn and teenagers stay awake into the wee hours might be related to how ancient humans guarded their settlements, New Scientist reports. For 20 days, anthropologists monitored sleep patterns in the Hadza, hunter-gatherers who live in groups of about 30 individuals in modern-day Tanzania.
The major rift in the Larsen C ice shelf pictured in July 2017.
Climate change has a new poster child: a massive iceberg the size of Delaware -- one of the largest ever recorded – that early this week calved off Larsen C, the largest remaining ice shelf off the Antarctic Peninsula, scientists announced today. Although researchers cannot explicitly connect the calving event to warming air or water, those monitoring the event are now concerned that the entire shelf, after shedding more than 12% of its area, could follow the fate of its more northern peers, Larsen A and B, which collapsed entirely in 1995 and 2002, respectively.
By Paul Voosen
Windows XP and Windows Server 2003 are supposed to be dead, but Microsoft's emergency update to address serious vulnerabilities gives organizations another excuse to hang on to these legacy operating systems a little longer.
Equipment Portal used by the United States Air Force. A portal to meet the most powerful air force in the world.
The use of ground-based missiles to engage planes and defend air space is a relatively recent phenomenon. First explored by Germany in World War II, all the major powers quickly raced to develop them in the postwar period. The first confirmed kill by a surface-to-air missile was in 1959.
The General Dynamics F-16 Fighting Falcon is a single-engine supersonic multirole fighter aircraft originally developed by General Dynamics (now Lockheed Martin) for the United States Air Force (USAF). Designed as an air superiority day fighter, it evolved into a successful all-weather multirole aircraft. Over 4,500 aircraft have been built since production was approved in 1976.Although no longer being purchased by the U.S. Air Force, improved versions are still being built for export customers.In 1993, General Dynamics sold its aircraft manufacturing business to the Lockheed Corporation,which in turn became part of Lockheed Martin after a 1995 merger with Martin Marietta.
Combat Arms brings you the news and articles of what is happening in the defense industry, covering projects, products and everything that happens in this fascinating world of weapons. With a team of Portuguese and foreign military friends, let's go through all the weapons. We count on your comments and participation here in your Smartencyclopedia.