Commonly, medical digital radiology ultrasound studies consist of about 25 images extracted from a full-motion ultrasound examination. Each image consists of 512 by 512 pixels, each with 8 b of intensity information.

a. How many bits are there in the 25 images?

b. Ideally, however, doctors would like to use 512 × 512 × 8 bit frames at 30 fps

(frames per second). Ignoring possible compression and overhead factors, what is the minimum channel capacity required to sustain this full-motion ultrasound?

c. Suppose each full-motion study consists of 25 s of frames. How many such studies could fit on a 600-MB CD-ROM?