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dimulka [17.4K]
3 years ago
5

Why were QR codes created

Computers and Technology
2 answers:
Jlenok [28]3 years ago
8 0
It's used QR codes in a way that is so useful that it… QR (Quick Response) code is the trademark name for the two dimensional barcode system. It was originally invented in 1994 by Denso Wave, a Toyota subsidiary, as a way to track vehicles as they were assembled, and to scan components at high speeds.
Crank3 years ago
4 0
QR codes were created to make a way for people to easily scan codes to get to a website. So you could scan (example) a movie poster to go to the website that has advertisements and tickets.
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Consider a set of mobile computing clients in a certain town who each
poizon [28]

Answer: answer given in the explanation

Explanation:

We have n clients and k-base stations, say each client has to be connected to a base station that is located at a distance say 'r'. now the base stations doesn't have allocation for more than L clients.

To begin, let us produce a network which consists of edges and vertex

Network (N) = (V,E)

where V = [S, cl-l, - - - -  cl-n, bs-l - - - - - - bs-k, t]

given that cl-l, - - - - - cl-n represents nodes for the clients

also we have that bs-l, - - - - - bs-k represents the nodes for base station

Also

E = [ (s, cl-i), (cl-i,bs-j), (bs-j,t)]

(s, cl-i) = have capacity for all cl-i (clients)

(cl-i,bs-j) = have capacity for all cl-i  clients & bs-j (stations)

⇒ using Fond Fulkorson algorithm we  find the max flow in N

⇒ connecting cl-i clients to  bs-j stations

      like (cl-i, bs-j) = 1

   if f(cl-i, bs-j)  = 0

⇒ say any connection were to produce a valid flow, then

if cl-i (clients) connected                f(s,cl-i) = 1 (o otherwise)

if cl-i (clients) connected  to bs-j(stations)   f(cl-i,bs-j) = 1 (o otherwise)

   f(bs-j,t) = no of clients  (cl-i)  connected to bs-j

⇒ on each node, the max flow value (f) is longer than the no of clients that can be connected.

⇒ create the connection between the client and base station i.e. cl-l to base bs-j iff    f(cl-i, bs-j) = 1

⇒ when considering the capacity, we see that any client cannot directly connect to the base stations, and also the base stations cannot handle more than L clients, that is because the load allocated to the base statsion is L.

from this, we say f is the max no of clients (cl-i) that can be connected if we find the max flow, we can thus connect the client to the base stations easily.

cheers i hope this helps

5 0
3 years ago
The process of converting information, such as text, numbers, photos, or music, into digital data that can be manipulated by ele
SCORPION-xisa [38]

Answer:

The process of converting information, such as text, numbers, photos, or music, into digital data that can be manipulated by electronic devices is called Digitization

Explanation:

It is the process of converting “information in to a digital form”. Here the information are organized into bits. Mostly these data will be converted into the form of image. But these can be edited by converting once again into necessary format and even back to image too. There are specific tools which the user needs to install for editing the digital documents.

The reason why we need digitization is that

a) We want to convert hard copy into soft copy and store it in system.  

b) We would like to edit the data in the hard copy and preserve as a fresh copy.

4 0
3 years ago
2.Use loops to create a 4X6 matrix in which the value of each element is two times its row number minus three times its column n
DiKsa [7]

Answer:

for(i=0; i<4; i++)

{

      for(j=0;j<6;j++)

      {

               A[ i ][ j ] = 2* i - 3*j;

      }

}

Explanation:

In this loop for each i = 0,1,2,3 we fill the the corresponding column values. and then move to next i value i.e. row.

3 0
3 years ago
Select the correct category of cybersecurity described.
Shalnov [3]

Answer:

Network security

Explanation:

Network security is a category of cybersecurity that is related to the protection of the infrastructure of the computer network from unauthorized access and intrusion that may be from intended attack or from an expedient  program which may result in the modification, malfunctioning, misuse or unacceptable disclosure of the network and the contents of the network

The category of cybersecurity that 'prevents intruders from accessing, misusing, destroying, adapting, or improperly disclosing networks, network infrastructure, or the information contained within networks' is network security.

6 0
2 years ago
A store sells rope only in whole-foot increments. Given three lengths of rope, in feet, the following code segment is intended t
Lynna [10]

Answer:

The answer is "option B".

Explanation:

In the given code, four double variable "len1, len2, len3, and total" is declared, in which the first three variables accept some value, and in the total variable, we add those variable. In the next step, an integer variable minLength is defined, which converts the decimal value to an integer and adds the value that is "0.5". In this section, the code uses as an intended purpose but only if the total of 3 lengths is equivalent to or larger then 0.5, and wrong choices can be described as follows:

  • In option A, It accepts the negative value, that's why it is wrong.
  • Option C, Option D, and Option E all were wrong because the code segment is work as intended.
5 0
3 years ago
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