- Study guides, Class notes & Summaries

ECE 260: Digital Logic Design Question & Answers (A + B)' = A'B' - ANSWER: DeMorgan OR to AND (AB)' = A' + B' - ANSWER: DeMorgan AND to OR 0 - ANSWER: ALU M = x for arithmetic 0 to 1 - ANSWER: +ve or rising edge - change occurs when CLK 1 - ANSWER: ALU M = x for logic 1 to 0 - ANSWER: -ve or falling edge - change occurs when CLK 10 - (sum % 10) - ANSWER: POSTNET checksum formula 10 ns - ANSWER: Delay time ~ 1024 - ANSWER: 1K in bits 2^20 - ANSWER: 1M in bits 2^m = n + 1 - ANSWER...

DIGITAL LOGIC DESIGN QUESTIONS & ANSWERS 0 and 1 - CORRECT ANSWER- as subtraction goes, the only time the circuit will use borrow is when the subtrahend is ____ while the minuend is ____ 1. Arithmetic and Logical Functions 2. Data Transmission 3. Code Converters - CORRECT ANSWER- CLC three classifications 7-segment display - CORRECT ANSWER- convenient way of displaying information or digital data in form of numbers or letters 7-segment display - CORRECT ANSWER- typically consists of seve...

Digital Logic Design Questions & Answers - LAN - CORRECT ANSWER- - network that connects computers & devices in a small area. - Advantages - Low Cost, Easy configuration, Speed. - Disadvantages - Low safety and security, not able to handle large amounts of computers. 1. What is SMP? List advantages. - CORRECT ANSWER- A computing design where two or more processors are attached to a single memory and operating system. - Advantages: greater performance, scaling (range of products & prices), ...

Digital Logic Design Questions & Answers A logic designer needs an INVERTER, and all that is available is one XOR gate from a 74HC86 chip. Does he need another chip? - CORRECT ANSWER- 3. No; the available XOR gate can be used as an INVERTER by connecting one of its inputs to a constant HIGH (see Example 4- 16). Change each AND gate in Figure 4-1(a) to a NAND gate. Determine the new expression for x and simplify it. - CORRECT ANSWER- x=A+B+C^lineAll Define hierarchical design. - CORRECT AN...

Digital Logic Design Unit 1 Questions & Answers (A+B)(A+C) - CORRECT ANSWER- A+BC A+~AB - CORRECT ANSWER- A+B A+AB= - CORRECT ANSWER- A Advantage of circuits to represent boolean functions: - CORRECT ANSWER- A circuit is an interconnection of components. Different circuits can represent the same function. Advantage: Circuit may represent an actual physical implementation of a Boolean function and that a circuit drawn graphically can enable quick and easy comprehension of a function by hu...

Exam 1- Digital Logic Design Questions & Answers adjacency - CORRECT ANSWER- ab + ab' = a a(b + b') a * 1 (a + b)(a+b') = a AND - CORRECT ANSWER- gate? a * b associative - CORRECT ANSWER- a + (b + c) = (a + b) + c a(bc) + (ab)c canonical POS - CORRECT ANSWER- a POS expression where each sum term is a maxterm canonical SOP - CORRECT ANSWER- an SOP where all product terms are minterms - - each product term contains all variables EX. f(x,y,z) = x'yz' + xy'z' + xyz' +xyz commutat...

Digital Logic Design Questions & Answers 2 Main types of Transistors - CORRECT ANSWER- 1. FET 2. BJT Amplitude - CORRECT ANSWER- Height from Baseline Analog - CORRECT ANSWER- Continuous Values (temperature, height, light, voice) bit - CORRECT ANSWER- Binary Digit BJT - CORRECT ANSWER- Bipolar Junction Transistor Used in TTL and are large Characteristics of a Pulse - CORRECT ANSWER- 1. Rise time 2. Fall time. 3. pulse width 4. amplitude Clock - CORRECT ANSWER- Basic Timing Signal in digit...

Digital Logic Design Questions & Answers 0 - CORRECT ANSWER- The identity element for OR 0 - CORRECT ANSWER- The null element for AND 3 - CORRECT ANSWER- A group of 4 ones in a 5-variable k-map is simplified to a product term of... variables 3 - CORRECT ANSWER- Maximum Delay in F(x,y,z)= (x+y)(zy)+x, if it is implemented as it is

Digital Logic Design Final Questions & Answers A combinational circuit is a zeroth-stage pipeline - CORRECT ANSWER- True A combinational device is a circuit element that has: (mark all correct): - CORRECT ANSWER- one or more digital outputs one or more digital inputs a functional specification A disadvantage of a programmable control system is that we cannot reconfigure it to compute new functions - CORRECT ANSWER- False A Don't Care is just a(n) [first] (and) [second] that the [third] ...