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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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Henry is creating code In JavaScript to run calculations on extremely small numbers. How can he use MIN_VALUE as validation in t
QveST [7]

In creating code in JavaScript to run calculations on extremely small numbers, MIN_VALUE as validation in the program can be use to check the lowest value JavaScript can handle

Number.MIN_VALUE returns the smallest positive numeric value representable in JavaScript.  It is the number more closer to zero. The value is approximately 5e⁻³²⁴.

Using Number.MIN_VALUE, the value can be printed as follows:

val = Number.MIN_VALUE;

console.log(val); // 5e-324

Therefore, In creating code in JavaScript to run calculations on extremely small numbers, MIN_VALUE as validation in the program can be use to check the lowest value JavaScript can handle.

learn more on JavaScript here: brainly.com/question/13041378?referrer=searchResults

3 0
2 years ago
The first row in a table is referred to as the _____ row and the last row is considered the _____ row.
Juliette [100K]

the first row in a table is classed as the header row.

and with the last one I'm not sure because as far as I know there's not considered a last row.

6 0
2 years ago
What substance was the first photograph made from?
dybincka [34]

Answer:

bitumen

Explanation:

5 0
3 years ago
Which commas is used to combine two or more cells together into one cell
AURORKA [14]
The command is Merge & Center
This command could be easily found in the toolbar of your excel.
If you execute this command in two different cells, those cells will be merged into one larger cell and the content in that cells will be placed exactly in the middle of the combined cell (measures according to combined cells' length)
5 0
3 years ago
A binary search algorithm is written (as in the modules, for example) which searches a pre-sorted array for some user-defined va
Mazyrski [523]

Answer:

c) it will always return with an answer of 7 or fewer comparisons of data.

Explanation:

As maximum number of comparison in worst case for sorted binary search is log₂n, here n = 100, so maximum search is at least 6.6 which is approximately 7.

4 0
3 years ago
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