Sunday, October 26, 2008

What is Optical Cable?

An optical cable is an optical fiber that has been coated with a tough layer of resin. This layer is then surrounded by what is referred to as a jacket layer. Most often, the jacket layer of the optical cable is made of plastic. The layers around the optical fiber help provide the optical cable with extra strength. At the same time, these layers do not prevent the fiber within the optical cable from maintaining its properties.

The fiber in an optical cable is typically made of either glass or plastic. The fiber itself is thin and transparent, making it capable of transmitting light. An optical cable may have thousands of these fibers within it, making the cable capable of transmitting a great deal of information through bandwidth communication or large amounts of electricity when the optical cable is used for this purpose.

An optical cable can be purchased with a wide variety of different sheathings and armor. The intended use for the optical cable determines which type should be selected. Uses can range from use as power lines, burial in trenches, attaching to aerial telephone poles, use in conduit, submarine installation, and placement within paved streets.

When used indoors, the jacketed fiber of the optical cable is usually enclosed and uses a lightweight plastic cover. Each end of the optical cable is usually terminated with an optical fiber connector, which makes it easier to connect and disconnect the optical cable. If the optical cable is to be used outdoors, a loose-tube construction design is usually used. This design consists of semi-rigid tubes that make it possible for the outside of the optical cable to stretch without stretching the fiber inside. This keeps the fiber protected from tension and extreme changes in temperature.

The fiber within the optical cable also needs to be protected from water. This is because the hydrogen and the hydroxyl ions within water will diffuse into the fiber. If this occurs, the strength of the fiber is reduced. Copper tubes or special water-repellent jellies are used to keep water out of the optical cable and away from the fiber.

Monday, October 13, 2008

Intel® Core™2 Quad Processors

Introducing Intel® Core™2 Quad processor for notebook and desktop PCs, designed to handle massive compute and visualization workloads enabled by powerful multi-core technology. Optimized for the longest possible battery life without compromise to performance, Intel Core 2 Quad processors for notebooks allow you to stay unwired longer while running the most compute-intensive applications.

Providing all the bandwidth you need for next-generation highly-threaded applications, the latest four-core Intel Core 2 Quad processors are built on 45nm Intel® Core™ microarchitecture enabling faster, cooler, and quieter mobile and desktop PC and workstation experiences.

Plus, with optional Intel® vPro™ technology, you have the ability to remotely isolate, diagnose, and repair infected desktop and mobile workstations wirelessly and outside of the firewall, even if the PC is off, or the OS is unresponsive.

Features and Benefits

With four processing cores, up to 12MB of shared L2 cache,¹ and up to 1066 MHz Front Side Bus for notebooks, and up to 12MB of L2 cache² and up to 1333 MHz Front Side Bus for desktops, the Intel Core 2 Quad processor delivers amazing performance and power efficiency enabled by the all new hafnium-based circuitry of 45nm Intel Core microarchitecture.

Whether you're encoding, rendering, editing, or streaming HD multimedia in the office or on the go, power your most demanding applications with notebooks and desktops based on the Intel Core 2 Quad processor.

Plus, with these processors you get great Intel® technologies built in:

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  • Desktop processors
  • Motherboards and barebones
  • Desktop chipsets

Intel® Wide Dynamic Execution, enabling delivery of more instructions per clock cycle to improve execution time and energy efficiency

Intel® Intelligent Power Capability, designed to deliver more energy-efficient performance

Intel® Virtualization Technology (Intel® VT), enabling greater security, manageability, and utilization

Dual Intel® Dynamic Acceleration technology, improving four-core performance by utilizing power headroom of idle cores by dynamically boosting frequency of active cores

Intel® Smart Memory Access, improving system performance by optimizing the use of the available data bandwidth

Larger Intel® Advanced Smart Cache optimized for multi-core processors, providing a higher-performance, more efficient cache subsystem

Intel® Advanced Digital Media Boost, accelerating a broad range of applications along with Intel® HD Boost utilizing new SSE4 instructions for even greater multimedia performance

Future ready, designed to perform in highly threaded programs with powerful Intel® multi-core technology