explain at least three main differences between the programmed input/output scheme and direct memory access scheme for data transfer. also suggest one situation where programmed input/output will be preferable over direct memory access.
DMA (direct memory access) transfer mode or PIO (programmed input/output) transfer mode
The major difference is that, a DSP is a chip which can be programmed based on our requirement, whereas an FPGA can be programmed to design a chip for our own purpose. FPGA can also be reprogrammed based on the changes in our application.
Yes, temperature difference does affect heat transfer rate. The greater the temperature difference between two objects, the faster heat will transfer between them. This is described by Newton's Law of Cooling, where the rate of heat transfer is directly proportional to the temperature difference.
If the temperature difference between an object and its surroundings is reduced, the rate of energy transfer between them will also decrease. This is because the driving force for heat transfer is smaller when the temperature difference is smaller.
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Programmed IO requires the CPU to manually transfer data between a device and memory. The CPU must constantly check the status of the device to determine when data can be transferred. It is a simple and efficient method but can result in high CPU utilization and slow transfer speeds.
A wire transfer is from one bank to another. A bank transfer is a transfer from one account to another at the same bank.
Data transfer between the central computer and input and output devices may be handled in a variety of modes The techniques of data transfer are: Programmed I/O Interrupt driven Direct Memory Access (DMA)
There actually is no difference. A Private Transfer Fee Covenant is a Reconveyance Fee Instrument.
1.Programmed IO is the process of IO instruction written in computer program , where Interrupt Initiated IO is done by using interrupt and some special command. 2.The advantage of Interrupt Initiated IO is ,it is a time consuming process than Programmed IO. 3.In Programmed IO technique to transfer data,required constant motoring on peripheral by CPU,once data transfer is initiated, CPU have to wait for next transfer. In Interrupt Initiated IO once data transfer initiated ,CPU execute next program without wasting time and the interface keep monitoring the device. When the interface determines that the device is ready to transfer data, it generate an interrupt request,CPU stop the current task,execute the transferring process,and then return to the previous on-processing task.
The rate of heat transfer is greater in the fridge compared to the freezer because the temperature difference is typically smaller between the inside of the fridge and the outside environment than the temperature difference between the freezer and the outside. Heat transfer is directly proportional to the temperature difference, so a smaller temperature difference in the fridge leads to a higher rate of heat transfer.
The difference between swift and wire transfer is that swift sends information from one bank or other financial institution to another. Swift sends the payment orders, but not the finances. With a wire transfer funds are transferred from one person to another.