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Questions tagged [digital]

Digital usually refers to something using digits, particularly binary digits.

1. (of signals or data) Digital describes electronic technology that generates, stores, and processes data in terms of two states: positive and non-positive. Positive is expressed or represented by the number 1 and non-positive by the number 0. Thus, data transmitted or stored with digital technology is expressed as a string of 0's and 1's. Each of these state digits is referred to as a bit (and a string of bits that a computer can address individually as a group is a byte).

2. (of a clock or watch) A digital clock is a type of clock that displays the time digitally (i.e. in numerals or other symbols)

3. (of design or style) Digital Design or styles containing a set of graphically related glyphs, characters, or symbols. They are associated to everything from websites and computer-game graphics to special effects for movies.

4. (of media) Digital media are any media that are encoded in machine-readable formats. Digital media can be created, viewed, distributed, modified and preserved on digital electronics devices. Examples of digital media include software, digital images, digital video, video game, web pages and websites, including social media, data and databases, digital audio, such as MP3 and electronic books.

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What are some practical applications of an FPGA?

I'm super excited about my program powering a little seven-segment display, but when I show it off to people not in the field, they always say "well what can you do with it?" I'm never able to give them a concise answer. Can anyone help me out?
Willem Ellis
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Why AND two numbers to get a Boolean?

I am working on a little Hardware interface project based on the Velleman k8055 board. The example code comes in VB.Net and I'm rewriting this into C#, mostly to have a chance to step through the code and make sense of it all. One thing has me…
Gineer
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Arduino map() method - why?

I was just looking at some example code and came across a line, I don't fully understand why it needs to be done. I understand that you are taking in an analog value. This value is between 0 and 1024 apparently? Why is this? Why does the output need…
Simon Kiely
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Android: DigitalClock remove seconds

I used this code for adding a clock to my app: The problem…
Lorenzo Sciuto
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How do the digits 1101004800 correspond with the number 20?

I'm trying to learn how to modify memory locations using C++ and when messing with MineSweeper, I noticed that when the clock's value in memory was 1101004800, it was 20 seconds into the game. The digits 1101529088 correspond with 21 seconds into…
Fred
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Cannot apply bit mask

I am making a horse programme. I have the horse face and wish to apply a bit mask. Only the horses eyes should be visible when it is wearing the bit mask. First I must convert the horses face to digital. For this I have a set of bits which include…
Weyland Yutani
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Convolution for Digital Signal Processing in R

I have a simple digital system which has an input x(n) = u(n) - u(n-4). I am trying to find the output y(n) with the conv() function from the 'signal' package or the convolve() function from the 'stats' package and plot the y(n) versus n for -10 ≤…
N8TRO
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What is the purpose of the `std_logic` enumerated type in VHDL?

What is the purpose of the std_logic enumerated type? 'U': uninitialized. This signal hasn't been set yet. 'X': unknown. Impossible to determine this value/result. '0': logic 0 '1': logic 1 'Z': High Impedance 'W': Weak signal, can't tell if it…
newprint
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Adding text to image and save

In my program i allow the user to enter some text which then gets put on top of an image using the graphics.DrawString() method. When i then go to save this image, it saves it without the text. How can i save both as one image? I have seen a few…
user1221292
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Digital signature in c# without using BouncyCastle

Without using 3rd party BouncyCastle library, is there a way to read a custom private key and sign the message ? (sha256 hash+encryption using private key)
ratheesh k v
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run a basic digital clock in the python shell

I want to code simple digital clock in the python shell. I want to avoid using tkinter if possible. This is what I currently have; import time while True: from datetime import datetime now = datetime.now() print ("%s/%s/%s %s:%s:%s" %…
DanMcGrew
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How to prevent Arduino's digital pins goes high on bootup?

I have done my project finally :) , but i noticed that the arduino board on startup it's some digital pins goes high for a bit time 1 seconds or little more! and this causes problem in my project because i'm using it in starting dc motor. I forgot…
Mahdi Alzubaidi
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Which of the following is TRUE about formulae in Conjunctive Normal Form?

Which of the following is TRUE about formulae in Conjunctive Normal Form? A. For any formula, there is a truth assignment for which at least half the clauses evaluate to true. B. For any formula, there is a truth assignment for which all the clauses…
Sanjay Verma
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How to verify an executable against a digital certificate

I have a .Net executable which I have digitally signed using a certificate generated through makecert.exe and signed using signtool. How to verify that exe has not been tampered or it is still using the certificate digitally signed by me. For ex -…
user3323130
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Z-Transform Poles and Zeros Locations on MATLAB

I am implementing an FIR Filter described as below: y(n) = x(n) + 2x(n-1) + 4x(n-2) + 2x(n-3) + x(n-4) Where there are no poles in this system. Computing the transfer function on MATLAB yields HZ = 1 + 2 z^-1 + 4 z^-2 + 2 z^-3 + z^-4 which is…
Tes3awy
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