You're looking for information on system programming and operating systems by D. M. Dhamdhere!
D. M. Dhamdhere is a well-known author in the field of computer science, and his books on system programming and operating systems are popular among students and professionals.
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You can find D. M. Dhamdhere's books on system programming and operating systems in PDF format online. However, I would recommend checking the authenticity of the source and ensuring that you are not violating any copyright laws.