Computer Bus Speed Question

Bus:

Data Lines Width: 1 byte

Address Lines Width: 4 bytes

Control Lines Width: 1 byte

Bus Clock Cycle (time): 10MH

Transfer rate: 1 byte per cycle

Display unit: 1920 x 1080 pixels, with a refresh rate of 30 frames per second

Question 1. Assuming that the data passes over the bus twice, from the cd/dvd to the memory then again to the gpu. Assuming that 1 pixel = 1 byte, calculate the minimum data transfer rate requirements are in bytes/second to sustain the displays resolution and refresh rate.

Question 2. Calucluate the actual refresh rate based on the bus choke assuming that the memory and other hardware are not bottlenecks, responding much faster than the bus specs posted above. (keep in mind the 10mh cycle, with data passing over it twice, cpu->bus->memory->bus->gpu)

Question 3. Calculate the minimum speed the bus must be to keep the display running at its designed specs.