The size of a typical bacterial cell is 0.5-5.0 micrometers, a average human cell is 10 micrometers. coli bacterium are about 2.0 micrometers in length and .25 to 1  micrometer in diameter. In comparison, a red blood cell is about  six to eight micrometers in diameter and â¦ a thickness that ranges  from .8 to 1 micrometer in the center to 2 to 2.5 micrometers at  the thickest point.
August 13, 2012 11:20:48 PM. Unlocked GSM phone means that it wouldn't be locked into a specific carrier network. On the upside it means freedom to choose your own GSM carrier that suits your needs (and wallet) best. On the down side several carrier-specific features may not be available. If you lived in US make sure that the unlocked phone is compatible with US GSM frequencies.
GSM, or Global System for Mobile, is the primary type of technology used for cell phones in the rest of the world. Within the United States, a much small number of network service providers are on the GSM standard, among them T-Mobile and AT and T.hat CDMA and GSM Mean for Unlocked Phones. One big question a lot of buyers have is what the differences between CDMA and GSM technologies mean when they want to purchase an unlocked phone.