Exercise 1: Tracing the SR Latch Through RESET-HOLD-HOLD-SET — Possible Solution
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GIVEN
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Starting state: Q=1, Q'=0
Sequence: (S=0,R=1), (S=0,R=0), (S=0,R=0), (S=1,R=0)

STEP 1: S=0, R=1 (RESET)
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Applying this chapter's own feedback equations and iterating until
settled: R=1 forces Q toward 0. Result: Q=0, Q'=1.

STEP 2: S=0, R=0 (HOLD)
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Neither input forces anything - the latch holds its current state.
Result: Q=0, Q'=1 (unchanged from Step 1).

STEP 3: S=0, R=0 (HOLD)
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Same as Step 2 - still holding.
Result: Q=0, Q'=1 (unchanged again).

STEP 4: S=1, R=0 (SET)
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S=1 forces Q toward 1.
Result: Q=1, Q'=0.

RESULT
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Q sequence across the 4 steps: 0, 0, 0, 1

CONFIRMING Q GENUINELY HOLDS DURING BOTH (0,0) STEPS
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Q was 0 after Step 1 (RESET), and Q was STILL 0 after both Step 2
and Step 3 (HOLD), even though nothing about the S,R inputs
changed between Step 1's result and confirming that value stuck
around into the two HOLD steps that followed. This is exactly the
memory behavior this chapter demonstrated - identical (0,0) inputs
producing the same, held-over Q value rather than resetting to
some default.

WHY THIS WORKS AS AN ANSWER
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Each step's Q value is tracked explicitly and shown to carry over
unchanged through both HOLD steps, directly confirming (rather than
just assuming) that the latch is genuinely remembering its state
rather than merely happening to look that way.