Shift Registers » Exercise – 1
17. A bidirectional 4-bit shift register is storing the nibble 1110. Its input is LOW. The nibble 0111 is waiting to be entered on the serial data-input line. After two clock pulses, the shift register is storing ________.
(a) 1110
(b) 0111
(c) 1000
(d) 1001
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