The Semi-Automatic Ground Environment (SAGE) was a Cold War operator environment for the automated air defense (AD) of North America and by extension, the name of the network of computer systems providing the ground environment for the larger air defense system with buildings, radars, and defense aircraft. SAGE Direction Centers (DC) in large "cube" buildings provided radar netting for Air Defense Sectors using data from numerous remote Air Force Stations each manned by SAGE radar squadrons operating several radars for searching/detecting, height finding, and for automatic tracking of Bomarc missiles. Each SAGE DC provided data to a Combat Center for "supervision of the several sectors within the division" ("each combat center [had] the capability to coordinate defense for the whole nation").:51
The December 1949 "Air Defense Systems Engineering Committee" led by Dr. George Valley had recommended computerized networking for "radar stations guarding the northern air approaches to the United States", including some stations in Canada. In 1949 the USAF had funded Project Charles to develop a demonstration system for automating Air Defense and after a January 1950 meeting, Valley and Jay Forrester proposed using the Whirlwind I (built 1948-51) for air defense. The Cape Cod System at Cambridge, Massachusetts, was the "first major Lincoln Laboratory effort" and networked long-range and several short-range radars. On August 18, 1950, when the "1954 Interceptor" requirements were issued, the USAF "noted that manual techniques of aircraft warning and control would impose “intolerable” delays.":484 Between February and August 1951, the USAF conducted Project Claude at the 1951 MITLincoln Laboratory and which concluded an improved air defense system was needed.
WARNING: This article is meant to be informal and fun!
Okay, so you're a CS graduate and you did a hardware/assembly course as part of your degree, but perhaps that was a few years ago now and you haven't really kept up with the details of processor designs since then.
In particular, you might not be aware of some key topics that developed rapidly in recent times...
pipelining (superscalar, OoO, VLIW, branch prediction, predication)multi-core & simultaneous multithreading (SMT, hyper-threading)SIMD vector instructions (MMX/SSE/AVX, AltiVec)caches and the memory hierarchy
Fear not! This article will get you up to speed fast. In no time you'll be discussing the finer points of in-order vs out-of-order, hyper-threading, multi-core and cache organization like a pro.
But be prepared – this article is brief and to-the-point. It pulls no punches and the pace is pretty fierce (really). Let's get into it...
At the electronica trade show (hall A6, stand 506) Kontron announces the extension of its Computer-on-Module (COM) portfolio with a new family of COM Express compliant Power Architecture processor modules with Freescales QorIQ 32bit P2020...
Sharing your scoops to your social media accounts is a must to distribute your curated content. Not only will it drive traffic and leads through your content, but it will help show your expertise with your followers.
How to integrate my topics' content to my website?
Integrating your curated content to your website or blog will allow you to increase your website visitors’ engagement, boost SEO and acquire new visitors. By redirecting your social media traffic to your website, Scoop.it will also help you generate more qualified traffic and leads from your curation work.
Distributing your curated content through a newsletter is a great way to nurture and engage your email subscribers will developing your traffic and visibility.
Creating engaging newsletters with your curated content is really easy.