Kabadi, Mathias Jayunga2020-06-172020-06-172002Kabadi, M.J (2002) Development of a programmable computer interface circuit: a four diskette drive adapter, Master dissertation, University of Dar es Salaam. Dar es Salaam.http://41.86.178.5:8080/xmlui/handle/123456789/12494Available in print form, East Africana Collection, Dr. Wilbert Chagula Library, Class mark (THS EAF TK7868. I58K32)The function of a floppy disk controller (FDC) is to interface the microprocessor of a system to the disk drive. This FDC adapter is designed for double-density, MFM-coded four diskette drives and uses a write precompensation with an analog Phase-locked loop and data recovery. The adapter is a general-purpose device, using the NEC VL6765- 08PC compatible controller chip, which is programmable. The diskette drive write protect feature is also supported. The FDC is buffered on the I/O bus and uses DMA for record data transfers.enProgrammableComputerThesis