Final answer:
Buying a used laptop from a garage sale or ordering flowers online are not against the ethical guidelines of the Computer Ethics Institute. These actions are ethical as long as they respect ownership, privacy, and avoid harm.
Step-by-step explanation:
The recommended guidelines by the Computer Ethics Institute for the ethical use of computers focus on promoting responsible and respectful use of technology. Activities such as buying a used laptop at a garage sale and ordering flowers over the internet for a friend in a different city do not conflict with these guidelines.
These actions are generally acceptable as long as the principles of respecting ownership, privacy, and avoiding harm are observed. However, when considering the broader question of social responsibilities and ethics in technology, one needs to ensure that their activities do not contribute to negative societal consequences such as promoting misinformation or diminishing the quality of life.