ENERGY STAR certified heat pumps have higher ratings for seasonal energy efficiency ratio (SEER), energy efficiency ratio (EER), and heating seasonal performance factor (HSPF) and use about 5% percent less energy than conventional new models.
1 8 bits that contain the Type of Service, also referred to as Quality of Service (QoS), which describes what priority the packet should have, 2  16 bits that contain the length of the packet in bytes, 3  16 bits that contain an identification tag to help reconstruct the packet from several fragments, 4  3 bits.
If data bus is 16 bits , then it can pass 16 bits data at a time. If address bus is 16 bits , then it can pass 16 bits address of data at a time. In ideal case, a n bits processor, all these are n bits. But several manufacture brand makes it complicated by changing the elements size. Like a 16 bits processor several manufactures use 20/16 bits address bus , 8/13/14/16 bits registers, 16 bits ALU. So how they determine the processor bits.