The following two questions refer to a disk with the following characteristics. There are 10 surfaces, each with 100 tracks. Each track is divided into 18 sectors, and a sector holds 512 bytes. Blocks consist of 2 sectors. 20% of the circumference of each track is occupied by gaps between the sectors. The disk rotates at 6000rpm; i. e., one rotation every 10 milliseconds. 1. The capacity of the disk most closely approximates:
a. 0.9 megabytes.
b. 1.2 megabytes.
c. 2.4 megabytes.
d. 4.8 megabytes.
e. 9.2 megabytes

2. The transfer time for one block most closely approximates:
a. 0.4 milliseconds.
b. 0.5 milliseconds.
c. 0.8 milliseconds.
d. 1.0 milliseconds.
e. 1.2 milliseconds