Microprocessor Consider the following statements: Arithmetic Logic Unit (ALU) 1.Performs arithmetic operations 2.Performs comparisons. 3.Communicates with I/O devices 4.Keeps watch on the system Which of these statements are correct? 1, 2, 3 and 4 1 and 2 only 1, 2 and 3 3 and 4 only 1, 2, 3 and 4 1 and 2 only 1, 2 and 3 3 and 4 only ANSWER DOWNLOAD EXAMIANS APP
Microprocessor Identify the programmable DMA controller from the following 8251 8279 8253 8257 8251 8279 8253 8257 ANSWER DOWNLOAD EXAMIANS APP
Microprocessor While using a frequency counter for measuring frequency, two modes of measurement are possible: Period time Frequency mode There is a ‘cross-over frequency’ below which the period mode is preferred. Assuming the crystal oscillator frequency to be 4MHz, the crossover frequency is given by 2 Mhz. 1Khz. 8 Mhz. 2 Khz. 2 Mhz. 1Khz. 8 Mhz. 2 Khz. ANSWER DOWNLOAD EXAMIANS APP
Microprocessor Of the following circuits, the one which involves storage is Decoder Mux Nand RS Latch Decoder Mux Nand RS Latch ANSWER DOWNLOAD EXAMIANS APP
Microprocessor A structure that stores a number of bits taken “together as a unit” is a Gate Register Mux Decoder Gate Register Mux Decoder ANSWER DOWNLOAD EXAMIANS APP
Microprocessor In one’s complement 8 bit representation 11111111 represents 1 +0 -0 -1 1 +0 -0 -1 ANSWER DOWNLOAD EXAMIANS APP
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