Question

In a 4-bit serial in parallel out right shift register shown in figure below. The content shift register will be

• A. 1100 after $4^{th}$ clock pulse
• B. 1010 after $3^{rd}$ clock pulse
• C. 0101 after $2^{nd}$ clock pulse
• D. 1010 after $1^{st}$ clock pulse

Answer 1

Answer: (B), (C)

0101 after $2^{nd}$ clock pulse

(b,c)
Initially 0110

After $1^{st}$ clock pulse 1011
After $2^{nd}$ clock pulse 0101
After $3^{rd}$ clock pulse 1010
After $4^{th}$ clock pulse 1101