The Mound Builders | Compare and Contrast

1975: The first software to operate a personal computer is developed, but personal computers are not generally available. Scientists in major universities have access to large mainframe computers, but archeologists in the field make notes with pen and paper and have them typed up on electric typewriters.

Today: Many homes in the United States have at least one personal computer, and many people have portable laptop computers. Archeological projects sponsored by universities use computers, global positioning satellite systems, digital cameras, cellular phones, and...

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