True/False
Indicate whether the statement is true or false.

1. The voltages in digital electronics are continuously variable. False 2. A digital system with 4 inputs can have any input combination represented by a hexadecimal numeral. True 3. Frequency is the number of times that a periodic waveform repeats per second. True 4. The period of a waveform can be found by 1/frequency. True 5. The falling edge of a signal is the transition from a HIGH to a LOW. True 6. The Fall Time of a signal is the time required to fall from the 95% point to the 5% point of the signal. False 7. The frequency of an a periodic waveform can be found by measuring a signal from one rising edge to the next rising edge. False (doubt! because of wording “an a periodic”, I’m assuming it to be aperiodic i.e not periodic) 8. A digital system with 2 inputs has 4 possible input combinations. True 9. We want the number of digital samples to be as large as possible to more accurately reproduce analog audio waveforms. True 10. The MSB is typically the rightmost bit in a binary number. False Numeric Response

1. What is the binary number which represents a decimal 4? Answer: 1002
2. If a digital system has 5 inputs, how many possible input combinations are there? Answer: 32
3. What is the decimal value of the hexadecimal number 777? Answer: 191110
4. What is the decimal value of the binary number 1001001001001? Answer: 468110
5. What is the binary value of the decimal number 2827?
Answer: 1011000010112
6. What is the decimal value of the binary number 11011011011? Answer: 175510
7. What is the decimal value of the hexadecimal number 999? 245710
8. What is the hexadecimal value of the binary number 10110100101100000? Answer: 1696016
9. What is the binary value of the hexadecimal number 1011? 100000001000110
10. Write the sequence of 8 bit numbers from 10101010...

...MCA 102 DIGITAL SYSTEMS & LOGIC DESIGN
Module1 - Number systems and code. Number systems - Efficiency of number system, Decimal, Binary, Octal, Hexadecimalconversion from one to another- Binary addition, subtraction, multiplication and division, representation of signed numbers, addition and subtraction using 2’s complement and I’s complement. Binary codes - BCD code, Excess 3 code, Gray code, Alphanumeric code, Error detection codes, Error correcting code. Module II - Logic...

...Digitalelectronics, or digital (electronic) circuits, represent signals by discrete bands ofanalog levels, rather than by a continuous range. All levels within a band represent the same signal state. Relatively small changes to the analog signal levels due to manufacturing tolerance, signal attenuation or parasitic noise do not leave the discrete envelope, and as a result are ignored by signal state sensing circuitry.
In most cases...

...Advantages of Digital Circuits
Name:
Instructor:
Institution:
Introduction
Digital circuits are circuits that use signals in digital form instead of analog forms. One distinctive feature of a digital signal is that it assumes discrete values, most of the time two values. A digital signal takes time to change from one value to another, and assumes intermediate values...

...ANALOGUE & DIGITAL SIGNALS
Name: - BHAVESH PATWAL
Tutor : - JAY PATEL
Date: - 20th November, 2012
I . Analogue Signals : -
Analogue signal is a form of transmitting data such as voice, image or video using continuous signals. This is a relatively inexpensive way to transmit data. Analogue communications are usually sent via twisted cables or fibre optic cables and they are transmitted via a carrier signal which is set at a specific frequency.
The...

...EEE 311: Digital Signal Processing-I
Course Teacher: Dr. Newaz Md. Syfur Rahim
Associated Professor,
Dept of EEE, BUET, Dhaka 1000.
Syllabus: As mentioned in your course calendar
Reference Books:
1. Digital Signal Processing: Principles, Algorithms, and Applications – John G. Proakis
2. Digital Signal Processing: A Practical Approach – Emmanuel C. Ifeachor
3. Schaum’s Outlines of Digital Signal Processing...

...Advantages of digital communication:
1. It is fast and easier.
2. No paper is wasted.
3. The messages can be stored in the device for longer times, without being damaged, unlike paper files that easily get damages or attacked by insects.
4. Digital communication can be done over large distances through internet and other things.
5. It is comparatively cheaper and the work which requires a lot of people can be done simply by one person as folders and...

...Analog and Digital Comparison
NTC/362
February 3, 2014
Dr. Phillip Coleman
Running head: ANALOG AND DIGITAL COMPARISON
1
ANALOG AND DIGITAL COMPARISON
6
Analog and Digital Comparison
Telecommunications is a term used to describe any type of long distance communication techniques. In the digital age, telecommunications describes the use of electronic devices that facilitate communications between...

...Question )
1. Materials and Components
Structure and properties of Electronic Engineering materials, Conductors, Semiconductors and
Insulators, Magnetic, Ferroelectric, Piezoelectric, Ceramic, Optical and Superconducting materials.
Passive components and characteristics, Resistors, Capacitors and Inductors; Ferrites, Quartz crystal,
Ceramic resonators, Electromagnetic and Electromechanical components.
2. Physical Electronics, Electron Devices and ICs...