Combinational Logic Design Introduction Combinational and sequential logic are the fundamental building blocks of digital electronics. Combinational logic, which is sometimes referred to as "combinatorial logic”, is characterized by its output being a function of the current input value. A variety of different logic gates can be used to implement combinational logic circuits. Many of these gates will be studied in future units of this course. In this introductory unit, we will limit our designs to AND, OR
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Case Study Question (1) What are the inputs, processing, and outputs of UPS’s package tracking system? Inputs: For barcode system, detailed information about sender, the destination, and when the package should arrive will be input. For Traffic situation, weather conditions and the location of each stop will be input also. Finally, with a DIAD system, customers’ signatures along with pickup and delivery information, current location will be input too. Processing: Information from the bar-code
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CHAPTER 6 6.4) John von Neumann, usually considered the developer of the computer as we know it today, set down a series of guidelines known as the von Neumann architecture for computers. The major guidelines include: Memory holds both programs and data which is known as the stored program concept. This allows programs to be changed easily. Memory is addressed linearly- there is a single sequential numeric address for each and every memory location. Memory is addressed by the location number without
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Flip-Flops and Related Devices Multiple Choice 1 . A "D" flip-flop utilizing a PGT clock is in the CLEAR state. Which of the following input actions will cause it to change states? [Hint] CLK = NGT, D = 0 CLK = PGT, D = 0 CLOCK NGT, D = 1 CLOCK PGT, D = 1 Both a and c 2 . Which statement BEST describes the operation of a negative-edge-triggered D flip-flop? [Hint] The logic level at the D input is transferred to Q on NGT of CLK. The Q output is ALWAYS identical
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are programs and data to be used by the computer available? 1 2 3 4 Output Processing unit Input Storage Ans: 4 Q. A parallel port is most often used by a 1 2 3 4 Mouse Monitor Printer External storage device Ans: 3 Q. Computer follows a simple principle called GIGO which means: 1 2 3 4 Garbage in garbage out Garbage input good output Good input good output Greater instructions greater output Ans: 1 Q. Arrange the following devices in ascending order of the speed: A. RAM B. Hard disk C. Cache D. Floppy
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are the inputs, processing, and outputs of UPS package tracking system? The inputs in the UPS package tracking system is the detailed information about the sender, the destination, and when the package should arrive. The inputs of UPS’s package tracking system was picked up from “smart label” (scannable bar-coded label) attached to the package. The tracking system also include customer signature, pickup, delivery information by using hand held DIADs. The package tracking system also input the information
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Diode detector is simplest and most effective types of detector. The output of this circuit is almost linear and therefore harmonic outputs are limited. The abrupt non linearity occurs for the negative half cycle. The modulated carrier is introduced into the tuned circuit made up of LC1. Since the diode only conducts only during the half cycles and gives the result. Although the average input voltage is zero, the average output voltage across R always varies above zero. The low pass filter, made
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Guide Computer Structure and Logic Quiz Study Guide UNIT 1 QUIZ STUDY GUIDE This electronic device was used as a switch to the first digital computer. Vacuum Tubes ENIAC stands for Electrical Numerical Integrator and Calculator. Who is credited with creating the stored program computer model? Eckert Limits to computing power are caused throughput bottlenecks between the CPU and memory. Which device uses a lot of power and gives off a lot of heat? Vacuum Tubes The silicon used to make a MOSFET
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A famous professor Andrew Tanenbaum developed Minix, a simplified version of UNIX that runs on PC. Minix is for class teaching only. No intention for commercial use In Sept 1991, Linus Torvalds, a second year student of Computer Science at the University of Helsinki, developed the preliminary kernel of Linux, known as Linux version 0.0.1 Free software, as defined by the FSF (Free Software Foundation), is a "matter of liberty, not price." To qualify as free software by FSF standards, you must be
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is a bi-stable device: a circuit having 2 stable conditions (0 or 1) 3 classes of flip-flops latches: outputs respond immediately while enabled (no timing control) pulse-triggered flip-flops: outputs response to the triggering pulse edge-triggered flip-flops: outputs responses to the control input edge A. Yaicharoen 2 1/51 Conventions The circuit is set means output = 1 The circuit is reset means output = 0 Flip-flops have two output Q and Q′ or (Q
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