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Electronics and Communication Electronic Devices And Circuits Difficulty: Medium

An array multiplier is used to find the product of a 3 bit number with a 4 bit number. How many 4 bits adders are required to perform multiplication? Which one of the following is analog? Match the following. List-I List-II a. Hartley 1. Low frequency oscillator b. Wien-bridge 2. High frequency oscillator c. Crystal 3. Stable frequency oscillator The method used to transfer data from I/O units to memory by suspending the memory-CPU data transfer for one memory cycle is called Consider the following statements with reference to frequency-domain approaches to analysis of feedback to control system 1. The approach needs and accurate mathematical description of the system 2. The method is independent of the complexity of systems 3. The method gives an approach for trial and error design Which of the above statements are correct?