Which vendor did IBM select to create the operating system for the IBM PC

As I remember Microsoft

Yes,

http://www-03.ibm.com/ibm/history/exhibits/pc25/pc25_birth.html

The term computer literacy dates back to what decade

IBM selected Microsoft to create the operating system for the IBM PC. To find this information, you can follow these steps:

1. Open a web browser of your choice.
2. In the search bar, type "IBM PC operating system vendor."
3. Press the Enter key or click the Search button.
4. Review the search results, looking for reputable sources such as news articles, official IBM documentation, or historical references.
5. Look for specific information about the selection of the operating system vendor.
6. Make sure to consider a variety of sources to validate the information.

By following these steps, you should be able to find reliable information confirming that Microsoft was the vendor selected by IBM to create the operating system for the IBM PC.