Denise Newell

Desci 4463

Assignment 2

Chapter 6

1. One of the 24 voice channels of the DS-1 format is used in digital transmission for synchronization, leaving 23 channels. One bit for each channels'

byte is used for control information. So, each of the remaining we channels get 7 bit 8000 times a second (voice sampling rate) for a channel.

3.a. 144,000,000 bytes 8x20x1,440,000x10

b. red=10 bits + blue = 10 bits + green = 10 bits = 2³⁰

4.a. 7 x 11 = 77 sq in, 2400 x 2400 dpi, bits = 442,520, bytes - 55,440,000

b. time = bits/line speed 442,520,000/19200 - 23,100/3600 = 6.42 hrs