1983: Cellular phone service is tested in Chicago. The bulky phones cost $3000, while monthly service fees total about $150. The target audience is businessmen who need to keep in constant touch with clients and their home office.

Today: Cellular phone service is available throughout the United States. Palm-sized phones are available. Phones and rates are relatively inexpensive. Many people use cellular phones to keep in touch with loved ones from anywhere at anytime.

1983: Early Macintosh computers are introduced. The Lisa model is the first to feature a mouse. IBM announces its development of a chip that can story 512K of memory.

Today: Personal computers are available for under $1000. Memory capabilities can measured in the gigabytes. The mouse is obsolete on laptops, which can feature trackpads to move a cursor. With widely available access to the Internet, people can easily remain in contact with their friends and...