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Why does DMA have priority over the CPU when both request a memory transfer?
The data transfer monitored by DMA controller which is called as DMA channel. The CPU is included only at the starting and end of the transfer, when the CPU wishes to read or write a block of data, it issues a command to DMA Channel by sending read/write operation, address of I/O, number of words to be read or written, as DMA have priority over the CPU when both request a memory transfer.
You are to write a C program called big_mult.c that multiplies two unsigned 64-bit integers, x and y, read from the command line. The output is a pair of unsigned 64-bit integers r
What is a semaphore? Semaphore: It is a protected variable or abstract data type that constitutes the typical method for restricting access to shared resources as shared memo
It is not essential to maintain the Parent-Child relationship among the tables in Logical Database Structure. False. One has to handle the Parent-Child relationship.
What are the restrictions on Subscreens? Subscreens have various restrictions. They cannot: Set their own GUI status Have a named OK code Call another screen
shell script to find whether the given number is Armstrong or not
ALE-> Address latch enable...In the case of microcontroller (8051)& microprocessor 8085 the data line and low order 8 bit address lines are multiplexed. In order to getting address
In a two-pass assembler, the task of the Pass II is to? Ans. The task of the Pass II is to synthesize the target program in a two-pass assembler.
What is the sequence in which resources may be utilized? Under normal mode of operation, a process might be utilize a resource in the following sequence: • Request: If the
What are the different layers in R/3 system? There are three layer:- Presentation Layer. Application Layer. Database Layer.
Determine the synchronization of bits The synchronization provided by use of start and stop bits, an extra bit known as a parity bit may optionally be transmitted along with th
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