What is the need of interface ?

What is the need of interface ?
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1 Answer

Answer :

Interface requirements: 1. Interface is needed to control the process of inputting data from the input device to the CPU and sending the result from the CPU to the output device. 2. The interface is needed to synchronize the speed of the input and output devices with the speed of the CPU. 3. The CPU interface can tell if the input / output device is ready for data transfer. 4. The interface contains a status flag that allows the processor to understand whether the data buffer is full or incomplete. 5. Changes the format for data transfer between different bus and input / output devices through the interface. Input / output devices can be connected to a microcomputer system in four ways. Namely: 1. Class connection peripheral interface ( Serial peripheral interface) 2. Parallel peripheral interface 3. Scazy peripheral interface ( SCSI peripheral interface) 4. Fireware peripheral interface
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