6 NAND gates are needed to construct this line decoder when a 2x4 line decoder with enable is implemented using nand gate only.
What is NAND gate?
The NAND gate is a hybrid of the AND and NOT gates. They are linked in a cascade fashion. It is also known as the Negated And gate. Only when their outputs are high or true does the NAND gate provide a false or low output. The NAND gate is necessary because it is used to implement various types of boolean functions.
The NAND gate has the functional completeness property. The NAND gate's function completeness means that it can be used to implement any type of gate. It functions as an OR, NOR, and AND gate.
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The statement is true about biometrics as an authentication method in options b and c.
<h3>What is Biometrics?</h3>
Biometrics is the measurement worried in measuring behavior or physiological traits of the human being. It is used for verifying the identification of a specific man or woman. It is probably operated in modes, particularly authentication and enrollment.
The complete question is :
Which of the following are true in biometric systems?
- a. For authentication application, a user template is compared against a single template stored in the database.
- b. For verification/identification application, a user template is compared against all the templates stored in the database.
- c. Multimodal biometrics is used to improve accuracy.
- d. None of these.
In the first mode, the facts is used and proven to test who the man or woman is. The second mode is obtaining the man or woman's facts and storing it in a database. Usually, multi-version biometrics are used for enhancing popularity accuracy.
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Answer:
#include <bits/stdc++.h>
using namespace std;
// main function
int main()
{
// variables
double mexico = 114;
double usa = 312;
double mexicoRate = .0101;
double usaRate = .0015;
// calculate population after every year until mexico population exceed the usa populationn
while (usa>mexico)
{
// print the population
cout<<"Mexico's population ::"<<mexico<<" million."<<endl;
cout<<"USA's population ::"<<usa<<" million."<<endl;
// update the population
mexico+=mexico*mexicoRate;
usa-=usa*usaRate;
}
return 0;
}
Explanation:
Declare and initialize mexico and usa with their initial population.Also declare and initial their increase and decrease rate.Find the population of both the country each year until mexico population exceeds the usa population.
Output:
Mexico's population ::114 million.
USA's population ::312 million.
Mexico's population ::115.151 million.
USA's population ::311.532 million.
.
.
.
Mexico's population ::270.546million.
USA's population ::274.213 million.
Mexico's population ::273.278million.
USA's population ::273.802 million.
A tornado happens when you mix cold with hot
The definition according to google and the dictionary of technological singularity is the following : The technological singularity (also, simply, the singularity) is the hypothesis that the invention of artificial superintelligence will abruptly trigger runaway technological growth, resulting in unfathomable changes to human civilization.
The dangers this brings to man kind is the fact that people will turn out to not be people or there may be a different species considered as humans or human kind .Also we were made as humans from something else artificial super intelligence will basically be forming from us which means it will be forming from something that was already mean basically meaning there will be something changed within the species or artificial super intelligence itself.
