The passage discusses the ubiquity of computers and their various uses, especially in the context of AI, along with some potential health risks for humans who spend long hours in front of computers. Let's analyze the statements:
(i) "Nowadays, computers are present in almost all places."
This is directly stated in the passage: "Computers are ubiquitous."
(ii) "Computers cannot be used for solving problems in engineering."
This statement is not supported by the passage, which highlights the efficiency improvements brought by computers.
(iii) "For humans, there are both positive and negative effects of using computers."
The passage mentions health issues caused by prolonged computer usage, indicating negative effects, alongside the benefits of AI and efficiency improvements, thus confirming both positive and negative impacts.
(iv) "Artificial intelligence can be done without data."
The passage suggests that AI requires enough training data, making this statement incorrect.
Hence, the correct options are (i) and (iii).
Final Answer: (i) and (iii)