Wednesday, October 31, 2007

Intel® 45nm Hi-k Silicon Technology

45nm next-generation Intel® Core™ microarchitecture is on its way. With twice the density of Intel® 65nm technology, Intel's 45nm packs about double the number of transistors into the same silicon space. That's more than 400 million transistors for dual-core processors and more than 800 million for quad-core. Intel's 45nm technology enables great performance leaps, up to 50-percent larger L2 cache, and new levels of breakthrough energy efficiency.

Intel's had the world's first 45nm CPUs in-house since early January 2007—the first of fifteen 45nm processor products in development. With one of the biggest advancements in fundamental transistor design in 40 years, Intel's 45nm technology can deliver more than a 20 percent improvement in transistor switching speed, and reduce transistor gate leakage by over 10 fold.
Intel will debut the 45 nanometre process with the Penryn chip. Many details about Penryn appeared at the April 2007 Intel Developer Forum. Its successor is expected to be Nehalem. Important advances include the addition of new instructions (including SSE4, also known as Penryn New Instructions) and new fabrication materials (most significantly a hafnium-based dielectric).

NB: IBM have already completed a common 45 nm process platform.

Source: http://www.intel.com/technology/architecture-silicon/45nm-core2/index.htm?cid=cim:gglcorp_us_penrynk88DEs

Tuesday, October 30, 2007

IMAP

IMAP stands for Internet Message Access Protocol. It is a method of accessing electronic mail or bulletin board messages that are kept on a (possibly shared) mail server. For example, email stored on an IMAP server can be manipulated from a desktop computer at home, a workstation at the office, and a notebook computer while traveling, without the need to transfer messages or files back and forth between these computers.IMAP's ability to access messages (both new and saved) from more than one computer has become extremely important as reliance on electronic messaging and use of multiple computers increase, but this functionality cannot be taken for granted: the widely used Post Office Protocol (POP) works best when one has only a single computer, since it was designed to support "offline" message access, wherein messages are downloaded and then deleted from the mail server. This mode of access is not compatible with access from multiple computers since it tends to sprinkle messages across all of the computers used for mail access. The difference with IMAP is that it is in constant, real-time communication with the server, which is a great benefit if you are switching back and forth between devices. In such a scenario, using POP3, one would end up with a slightly different message thread, depending on what was sent from which device. Unless all of those machines share a common file system, the offline mode of access that POP was designed to support effectively ties the user to one computer for message storage and manipulation.
Google has upgraded its Gmail offering by augmenting it with IMAP recently.
IMAP adds an element of interactivity to Gmail that has been missing.

For More Info, Visit http://www.imap.org/about/whatisIMAP.html