The Harvard College Observatory Computers from c. 1880 into the ...

[abc]

The Harvard College Observatory Computers from c. 1880 into the early 20th century were:
 
  A) the first digital computers.
  B) not much different than cash registers.
  C) functionally similar to the modern 4- function calculator.
  D) a group of women who made important contributions to astronomy.
  E) mechanically operated adding machines.

Question 2

Typical stellar spectra appear as:
 
  A) a series of bright, colored lines.
  B) an unbroken rainbow of colors.
  C) a rainbow, but with some dark lines mixed in.
  D) a rainbow with some bright lines on top of the continuum.
  E) a very redshifted rainbow due to the expansion of the universe.

[rachel]

Answer to Question 1

D

Answer to Question 2

C