Figure 2 shows the logic symbol of the 3-to-8 binary decoder, the 74x138. 74x138 YO O- YO_L Y1 O- Y1_L Y2 O- Y2_L Y3 0 Y4 0 Y5 0 Y6 O- Y6_L Y7 O- Y7_L G1 G1 O G2A O G2B G2A_L - G2B_L Y3 L Figure 2 Y4 L A A Y5 L
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- 427 in BCD is converted to pure binary integer what is its binary value (a) 010000100111 (b) 10000100111 (c) 110101011 (d) 111001000010Given two decimal numbers 694 and 835. Their sum in BCD is 00111111001001 01011111001001 0001010100101001 none of these The result of subtracting 654253758 from 740152368 is 6367641 6267641 6267541 O 6367541 The Boolean expression (X+Y+Z)' = X'Y'Z' is an example of which Law/Theorem? Idempotent Law Commutative Law DeMorgan's Theorem O Involution LawQ: for the 4-bit binary adder - subtractor , the control signal M control the operation 4 - bit Binary Adder-Subtractor В, А, 1 0 В, А, A3 B3 1 0 B, A, 1 0 1 0 1 0 M B3B3 Bz'\B2 C3 BoBo C; C2 Co FA FA FA FA C4 S3 S2 So M=0,C0=1 & B(XOR)0=B with M=1,C0=0 & B(XOR)0=B' M=0,C0=1 & B(XOR)0=B' with M=1,C0=0 & B(XOR)0=B M=0,C0=1 & B(XOR)0=B' with M=1,C0=1 & B'(XOR)0=B M=0,C0=0 & B(XOR)0=B with M=1,C0=1 & B(XOR)1=B'
- Question Completion Status: O 2,048 QUESTION5 The following logic circuit is B8 A8 B7 A7 |B6 |A6 B5 A5 B4 A4 B3 A3 B2 A2 | B1 A1 FA8 2FA7 C6 FA6 *C5 C4 FA4 C3 FA1 Cin FA5 FA3 C2 FA2 C1 S8 S7 S6 S5 S4 S3 C8 S2 S1 CElprocus.com O 8- bit - Full adder O 8- bit - half adder O 8- bit - Decoder 08-bit- Multiplexer QUESTION 6 A Write the Boolean equation directly from the following circuit. (2 marks ) B Create the truth table for the circuit above (3 Marks)design the following circuits, for 4 bit binary input(0000-1111): ● a circuit that can detect prime numbers ● a circuit that can detect fibonacci numbers ● a circuit that can detect tribonacci numbers ● a circuit to detect catalan numbers between 0-15Given a floating point representation 10110 11101101000 (5-bit exponent and 11-bit significant) if the exponent is in two’s and the significant is in one’s, what are its normalized floating point representation in hexadecimal and its real value in hexadecimal?
- The circuit shown in figure performs addition as well as subtraction. If 4-bit binary numbers A(A3,A2,A1,AO) = 1011 and B(B3,B2,B1,B0) = 1111 are applied to this circuit. When the signal S =1, what are the values for the sum and carry output? B3 Аз B2 A2 B, A1 Bo Ao C3 C2 FA FA FA FA Co C4 S2 So Oa. S352S1S0 = 1111 and CO = 0 Ob. S3S2S1SO = 1110 and CO = 1 O c. S3S2S1SO = 1100 and CO = 0 O d. S3S2S1SO = 1101 and CO = 1ASCll code x/y=m odd polarity, leftmost position in 7. bits in hexadecimal are x78, y79, m6D, /2F, =3BFind the 16-bit computer representation of -753.
- In 2's complement representation, a certain negative number -N is 1011. The representation of +N is Select one: A. 0100 B. 0110 C. 0101 D. 1111000I1001 (y) 53. Add the following BCD numbers: (a) 1000 + 0110 (b) 0111 + 0101 (c) 1001 + 1000 (e) 00100101 + 00100111 (g) 10011000 + 10010111 (d) 1001 + 0111 (f) 01010001 + 01011000 (h) 010101100001 + 011100001000 54. Convert cach pair of decimal numbers to BCD, and add as indicated: (a) 4 - 3 (b) 5 + 2 (d) 17 + 12 ie) 28 - 23 (f) 65 + 58 (g) 113 + 101 (h) 295 – 157The value of the two-byte two's complement value OXFF72 is: -28 -84 -128 -142