JK flip-flop is a modified version of SR flip-flop without illegal states. Contains three NAND gates with J and K inputs instead of two. Output remains unchanged when both J and K are low. Can be in Reset (J=0, K=1), Set (J=1, K=0), or Toggle (J=1, K=1) states
Gray code is a binary sequence where each successive number differs by one bit. It's also known as Cyclic Code or Reflected Binary Code. Gray code changes only one bit from right to left
Truth table is a mathematical table for logical operations and boolean algebra. Each statement is represented by p,q or r with possible truth values. Output shows result of binary operations on input values
JK flip-flop is a universal programmable flip-flop named after Jack Kilby. Modification of SR flip-flop without illegal states. Uses J (SET) and K (RESET) inputs instead of SR's SET and RESET
Reading comprehension tests understanding of graduate school prose. Text completion requires filling in blanks with meaningful phrases. Sentence equivalence tests finding complete sentences with same meaning. Questions typically contain 1-6 questions per passage
JK flip flop was created by Jack Kilby at Texas Instruments in 1950s. Contains two inputs (J, K) and two outputs (Q, Q̅). Uses NAND gates for internal wiring