What is the difference between 'post' and 'upload'?
1. He posted a message to the bulletin board.
2. He posted some photos to the bulletin board.
3. He uploaded a message to the bulletin board.
4. He uploaded some photos to the bulletin board.
5. He posted a vod to the bulletin board.
6. He uploaded a vod to the bulletin board.
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Can we use both 'upload' and 'post' in the sentences?
There's little difference between those two verbs' meanings in these particular sentences.
If one were uploading a program, however, or an update to a program, then "post" would not be used.