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Do you know about Intel atom ? in this time i will tell you about Intel atom.
Intel Atom is the brand name for a line of ultra-low-voltage x86 and x86-64 CPUs (or microprocessors) from Intel, designed in 45 nm CMOS and used mainly in netbooks, nettops, and Mobile Internet devices (MIDs). On December 21, 2009 Intel announced the next generation of Atom processors, including the N450, with total kit power consumption down 40%

1. History
Intel Atom is a direct successor of the Intel A100/A110 low-power microprocessors (code-named Stealey), which were built on a 90 nm process, had 512 KB L2 cache and run at 600 MHz/800 MHz with 3W TDP. Prior to the Silverthorne announcement, outside sources had speculated that Atom would compete with AMD's Geode system-on-a-chip processors, used by the One Laptop per Child project, and other cost- and power-sensitive applications for x86 processors. However, Intel revealed on October 15, 2007 that it was developing another new mobile processor, codenamed Diamondville, for OLPC-type devices.
"Atom" was the name under which Silverthorne would be sold, while the supporting chipset formerly code-named Menlow was called Centrino Atom. Intel's initial Atom press release only briefly discussed "Diamondville" and implied that it too would be named "Atom",strengthening speculation that Diamondville is simply a lower-cost, higher-yielding version of Silverthorne with slightly higher TDPs at slightly lower clock speeds.
At Spring Intel Developer Forum (IDF) 2008 in Shanghai, Intel officially announced that Silverthorne and Diamondville are based on the same microarchitecture. Silverthorne would be called the Atom Z series and Diamondville would be called the Atom N series. The more expensive lower-power Silverthorne parts will be used in Intel Mobile Internet Devices (MIDs) whereas Diamondville will be used in low-cost desktop and notebooks. Several Mini-ITX motherboard samples have also been revealed.Intel and Lenovo also jointly announced an Atom powered MID called the IdeaPad U8.The IdeaPad U8 weighs 280 g and has a 4.8 in (12 cm) touchscreen providing better portability than a netbook PC and easier Internet viewing than a mobile phone or PDA.
In April 2008, a MID development kit was announced by Sophia Systems and the first board called CoreExpress-ECO was revealed by a German company LiPPERT Embedded Computers, GmbH. Intel offers Atom based motherboards.
2. Performance
The performance of a single core Atom is about half that of a Pentium M of the same clock rate. For example, the Atom N270 found in many netbooks such as the Eee PC can deliver around 3300 MIPS and 2.1 GFLOPS in standard benchmarks, compared to 7400 MIPS and 3.9 GFLOPS for the similarly clocked (1.73 GHz) Pentium M 740.
The Pineview platform has proven not to be much faster than the previous Diamondville platform. This is because the Pineview platform uses the same Bonnell execution core as Diamondville and is still connected to the memory controller via FSB. This is why memory latency and performance in CPU-intensive applications is barely improved.