All of the following were advances in technology during and just after World War || EXCEPT
1) The desk top computer was invented for personal home use.
O2) Jonas Salk invented the polio vaccine.
3) Penicillin and other antibiotics were invented.
4)
Nuclear energy made the atomic bomb possible and was later used as a
power source.

American express has a long history of working for the good of all in its new york community. in 1885, it engaged its employees to raise money to build the pedestal of the statue of liberty, and today has a program to restore, preserve and revitalize historic sites in new york city. these actions by american express are partial fulfillment of the the firm has established for itself as a corporate citizen.