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BartSMP [9]
3 years ago
9

You recently started working part-time in a retail store, and are learning about the reading devices your store uses.Your store

uses a bar code reader to process items during checkout. What type of technology does the bar code reader use?
Computers and Technology
1 answer:
slega [8]3 years ago
5 0

Answer:

Laser beams.

Explanation:

Recently, that user has began functioning part-time in such a retail outlet, as well as he discovering regarding his shop's learning tools. During checkout, his shop requires the code scanner to scan objects.  

The barcode scanner uses laser beam technologies because the laser beam is rapidly running over the QR code or barcode back-and-forth, or executing the sequence. The sensors well into the system display the mirrored beam patterns that decrypts the barcode.

So, the following are the reason that describes the answer is correct according to the scenario.

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Consider the following high-level recursive procedure: long long int flong long int n, long long int k long long int b b k+2; if
Stolb23 [73]

Answer:

f(long long, long long):

push rbp

mov rbp, rsp

push rbx

sub rsp, 40

mov QWORD PTR [rbp-40], rdi

mov QWORD PTR [rbp-48], rsi

mov rax, QWORD PTR [rbp-48]

add rax, 2

mov QWORD PTR [rbp-24], rax

cmp QWORD PTR [rbp-40], 0

jne .L2

mov QWORD PTR [rbp-24], 8

jmp .L3

.L2:

mov rax, QWORD PTR [rbp-40]

lea rdx, [0+rax*4]

mov rax, QWORD PTR [rbp-24]

lea rbx, [rdx+rax]

mov rax, QWORD PTR [rbp-48]

lea rdx, [rax+1]

mov rax, QWORD PTR [rbp-40]

sub rax, 1

mov rsi, rdx

mov rdi, rax

call f(long long, long long)

add rax, rbx

mov QWORD PTR [rbp-24], rax

.L3:

mov rdx, QWORD PTR [rbp-24]

mov rax, QWORD PTR [rbp-48]

add rax, rdx

add rsp, 40

pop rbx

pop rbp

ret

Explanation:

8 0
3 years ago
Visual-verbal synergy has nothing to do with text, but solely with images used in a design.
Ilia_Sergeevich [38]
I think it is true (A) 
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3 years ago
What are the benefits of writing functions that use parameters and return List 2 please and explain what is return
Ratling [72]

<u>Answer and explanation:</u>

There are many benefits of writing functions that use parameters and return. Some of them are:

1. Flexibility: With functions having parameters, several values of the parameters can be used at invocation time thereby making the application flexible. For example, given the following function in Java.

<em>public void showName(String name){</em>

<em>    System.out.println("Your name is " + name);</em>

<em>}</em>

To call this method (function), the programmer could use various values for the name parameter used in the function like so:

showName("John");

showName("Doe");

If the function didn't have a parameter, it is possible it will only print a hardcoded name every time the function is called.

2. Scope Control: When a function is allowed to return a value, it helps to work around scope issues since variables declared within a function are limited to that function and do not exist outside the function. This means that the values of these variables cannot be used anywhere else outside the function in which they are being declared. However, if the function returns a value, the value can be used anywhere else in the program.

For example:

<em>public String getDouble(int x){</em>

<em>    int y = x * 2</em>

<em>    return y;</em>

<em>}</em>

The function above returns twice the value of the argument supplied to it. Since the integer variable y is declared within the function, it's value cannot be used outside the function. However, since the value is being returned by the function, it could be used anywhere the function is being called. Thanks to the return keyword.

3 0
3 years ago
A _____ software system determines the steps needed to produce components and instructs the machines that do the work.
konstantin123 [22]

Answer:

A computer-aided manufacturing or (cam) software system

Explanation:

Hope I could help :)

8 0
3 years ago
What is the current through R1?
patriot [66]
I = V/R. So the answer is 9/200 = 0.045A = 45mA which is B
8 0
3 years ago
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