A ternary string is a sequence of 0's, 1's and 2's. Just like a bit string, but with three symbols. Let's call a ternary string good provided it never contains a 2 followed immediately by a O. Let be the number of good strings of length n. For example, G₁ = 3. and G₂ = 8(since of the 9 ternary strings of length 2, only one is not good).Find, with justification, a recursive formula for , and use it to compute G₅.

You need to design a circuit that implements the functions in the following table: s0 s1 function0 0 a + 10 1 a – b1 0 a + b1 1 a – 1s0 and s1 are 1-bit control inputs to select the function of the circuit. inputs a and b are 4-bitnumbers in 2s complement form. the output is also a 4-bit number in 2s complement form.you are allowed to use only one ttl 7483 4-bit adder to implement all the functions. but anynumber of other components (except the adder) can be used.hint: design a combinational logic circuit to modify the input b and the “carry input” of theadder depending on the control inputs s0 and s1.important: lab grade will depend on the working of the circuit & will be checked of by your labinstructor.1. is the output valid for the following input combinations: a. s0 = 0, s1 = 0, a = 7, b = 3? b. s0 = 0, s1 = 1, a = 7, b = 3? c. s0 = 1, s1 = 0, a = -4, b = -5? d. s0 = 1, s1 = 1, a = -8, b = 6? 2. what is the range of inputs (for both a and b) that will produce the valid output for all the functions?

Which of the following would not be considered a pc? a. mainframe b. desktop c. tablet pc d. laptop

What is the definition of digital literacy?