X.B.24. A 1024 x 1024 eight-bit image will require a storage capacity of:
a. 1 megabyte. Correct.
b. 4 megabytes.
c. 16 megabytes.
d. 64 megabytes.
Discussion: 8 bits is 1 byte per pixel. The number of pixels is 1024 x 1024. Although this is not exactly 1 million it is characterized as a megabyte in computer terminology.
Reference: Physical Principles of Medical Imaging, 2nd. Edition. p. 336