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Jerry Costas's Articles in Hardware

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An Ultraportable or Mainstream Notebook – Which is Best for You? The typical computer user’s ideal notebook would fall into one of the two most popular categories – ultraportable or mainstream. Ultraportables are pretty and trim, generally weigh less than 4 pounds, and can be carried almost anywhere. Mainstream notebooks deliver a good balance of portability and power. Between the different manufacturers, models, and sub-models, consumers are faced with a variety of notebooks to choose from, varying greatly in price, features, design, and performance. Why Do I Need Dual-Channel Computer Memory? Buying a computer today is becoming a more complicated process where buyers are thrown technical terms like GHz, DDR, FSB, Dual-Channel and Hyper-Threading. Traditionally, the GHz number, or processor speeds, has always been the key factor in any computer purchase. As the GHz number increases, so does the computer performance. Today, the GHz number is no longer the sole criterion for determining system performance. DDR, DDR-2 and Other Computer Memory Acronyms Any computer that you bought around the year 2000 or later uses a type of dynamic random access memory (DRAM) known as double data rate, referred to as DDR. It refers to memory in which two data items are transmitted with each clock signal. It replaced single data rate SDRAM. (Synchronous DRAM.) DDR memory is also synchronous, and you will sometimes see DDR memory referred to as DDR SDRAM. DDR3 Computer Memory Overview DDR-3 is the next-generation evolution of DDR and newer DDR-2 memory technology that will break the Gigahertz speed barrier for memory speed. Do You Need Premium Computer Memory? It has been a buyer’s market for premium DDR2 memory lately. Your choices range from modestly overclockable modules, which command only a slight premium over value memory, to bleeding-edge modules with heat spreaders that can hit clock speeds as high as 533 MHz (DDR2-1066) and require voltages higher than 1.8 volts. Recently, we’ve seen DDR2 modules rated to use as much as 2.3 volts from Corsair.

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