The document discusses data transfer methods in electrical engineering, highlighting the significance of data in contemporary contexts. It outlines several techniques for transferring data, including polling, interrupt-driven methods, and DMA controller-based systems. The content is authored by Professor Ranjitkumar Parmar from the Government Polytechnic of Junagadh in Gujarat, India.

1. BY
Prof. Ranjitkumar Parmar
Head, Electrical department
Govt Polytechnic Junagadh
Gujarat India

2. Data Analysis
 Data : A hot issue today
 Why to transfer data?
 What are the methods to transfer data?
Electrical Engg. Dept Govt Polytechnic Junagaadh
Gujarat India

3. Data Transfer Techniques
 Polling
 Interrupt Driven
 DMA Controller based
Electrical Engg. Dept Govt Polytechnic Junagaadh
Gujarat India

4. POLLING
Electrical Engg. Dept Govt Polytechnic Junagaadh
Gujarat India

5. INTERRUPT DRIVEN
Electrical Engg. Dept Govt Polytechnic Junagaadh
Gujarat India

6.  DMA CONTROL BASED
Electrical Engg. Dept Govt Polytechnic Junagaadh
Gujarat India