Mr. Kalam Khan gave a seminar presentation on computer applications in the petroleum industry. He discussed how computers are now essential tools in the industry. He explained how computers work and their basic parts. He then outlined how computers are used for various tasks like collecting field data using handheld devices, running engineering software for tasks like seismic data interpretation, and creating documents and spreadsheets using Microsoft Office programs. Computers help improve efficiency, maximize profits, and reduce hazards in the petroleum industry.