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Consider the design of two logic circuits that both have four inputs: A, B, C and D; and one output: X.  Each circuit is implemented using 4-input AND gates (with negated inputs) and an OR gate to generate the output. For circuit 1, X is defined to be 1 if and only if interpreting ABCD as an unsigned binary integer results in a number that is greater than 4. Note A is the most significant bit, then B, and so on. For circuit 2, X is defined to be 1 if and only if interpreting ABCD as an unsigned binary integer results in an even number. Note A is the most significant bit, then B, and so on. Which of the following 4-input gates would be used in the implementation of both circuits?FYI: Be certain; Canvas deducts points for incorrect choices.

Which Instruction Execution Cycle phase obtains the next instruction from memory and loads it into the instruction register (IR)?  

Consider the following table that represents part of the memory of a 16-bit address space that has an addressability of 2 bytes (like LC-3): ADDRESS CONTENTS … … 0x0C10 0101 0010 0111 1011 0x0C0F 0000 1000 1100 1101 0x0C0E 0001 0101 1100 0100 0x0C0D 1101 0010 0101 0111 0x0C0C 0100 0010 0110 0001 0x0C0B 0000 1100 0000 1101 … … The table above shows the addresses in hex (base 16) and the contents at the corresponding address in binary (base 2). A.) Interpret the contents at address 0x0C0C as two ASCII characters. [ascii] B.) Interpret the contents at the same address as A.) above as an unsigned integer in base 10. [unsigned] C.) Interpret the contents at address 0x0C0E as an LC-3 instruction to determine the operation.(Enter either ADD, JMP, LDR, or OTHER if it is not one of the first 3) [instr1] Recall that a memory location can store an address. We call that memory location’s contents a “pointer” since it’s an address that “points” to another memory location. D.) Interpret the contents at address 0x0C0B as a pointer.(Enter hex like the following example: 0x2A3F) [ptrvalue] E.) What are the contents of the memory location that the pointer above is pointing to?(Enter hex like the following example: 0x2A3F) [ptevalue]   REFERENCE: Partial Table of Hex to ASCII Characters: 20 sp 30 0 40 @ 50 P 60 ` 70 p 21 ! 31 1 41 A 51 Q 61 a 71 q 22 ” 32 2 42 B 52 R 62 b 72 r 23 # 33 3 43 C 53 S 63 c 73 s 24 $ 34 4 44 D 54 T 64 d 74 t Table of LC-3 Opcodes in Hex: ADD 0x1 JMP 0xC LDR 0x6

Given that the prevalence of meeting all three goals in all adolescents is 22.2%, what does the information in the table show? 

Consider the following instruction breakdown that decomposes an instruction into 4 parts: OPCODE DST SRC IMM OPCODE specifies the OPeration’s CODE.DST specifies a DeSTination register.SRC specifies a SouRCe register.IMM specifies a 2’s complement value (that’s IMMediately available as part of the instruction). Assume the architecture has 30-bit instructions, 18 opcodes, and 23 registers. A.) What is the minimum number of bits required to represent an OPCODE? [opcbits] B.) What is the minimum number of bits required to represent a register? [regbits] C.) What is the maximum number of bits that can be used to represent the IMM value? [immbits] D.) What is the largest positive value in base 10 that can represented by the IMM value? [immval]

Which instruction execution cycle phase examines the instruction in order to figure out what the microarchitecture is being asked to do?  

Consider the following 6-state finite state machine, where the states are labelled S1 – S6, the inputs are labelled 1 – 4 by the arrow’s tail, and the output is the letter under the state label: What is output when starting at state S4 and given the input sequence “2123”?The first letter is output from the starting state:[O1][O2][O3][O4][O5]

Consider the design of two logic circuits that both have four inputs: A, B, C and D; and one output: X.  Each circuit is implemented using 4-input AND gates (with negated inputs) and an OR gate to generate the output. For circuit 1, X is defined to be 1 if and only if interpreting ABCD as an unsigned binary integer results in a number that is less than 4. Note A is the most significant bit, then B, and so on. For circuit 2, X is defined to be 1 if and only if interpreting ABCD as an unsigned binary integer results in an odd number. Note A is the most significant bit, then B, and so on. Which of the following 4-input gates would be used in the implementation of both circuits?FYI: Be certain; Canvas deducts points for incorrect choices.

What technical problems did you have in taking this quiz?

Which of the following study types is considered the most robust with regard to determining a cause and effect in epidemiology?