The form factor is just one of the many standards that apply to motherboards. Some of the other standards include: The socket for the microprocessor determines what kind of Central Processing Unit (CPU) the motherboard uses.
Scenic San Juan Islands. More than 170 islands comprise the San Juan archipelago, which lies off mainland Washington at the juncture of the straits of Georgia and Juan de Fuca, and is sheltered from the Pacific Ocean by the Olympic Peninsula and Vancouver Island. (There are reputedly an additional 300 rocky islands at low tide.)
Major Cities in Puerto Rico. San Juan is the capital and most populous municipality in Puerto Rico. As of the 2000 census, it has a population of 433,733, making it the 42nd-largest city in the United States. San Juan was founded by Spanish colonists in 1521, who called it Ciudad de Puerto Rico (Rich Port City).