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Explain about the CPU used in Blackberry technology

Early BlackBerry devices used Interl-80386 processors but Intel XScale 624 MHz CPUs are used in the latest BlackBerry 9000 series. 

Earlier, BlackBerry 8000 series with Pearl was based on the 312 MHz ARM XScale ARMv5TE PAXA900. BlackBerry 8707 was based on 80 MHz Qualcomm 3250 chipset, and the device was often slower for downloading and render the web pages over 3G than the 8700 was over EDGE networks.