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2 years ago

COMPUTER SCIENCE:PIXELS

1 answer:

3 0

The number of bits used to represent each pixel determines how many colors or shades of grey can be displayed. For example, in 8-bit color mode the color monitor uses 8 bits for each pixel, making it possible to display 2 to the 8th power (256) colors/shades of grey.

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A = [2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 33 34 35 36 37 38 39 40]

vova2212 [387]

Answer:

$C = a./b$

Explanation:

In MATLAB, the following command:

$C = A./B$

Performs the element by elemet division of A and B. This comand is called Right-array division.

So, in your case, we could divide A by B element by element, only using fully-vectorised code (ie. no loops), with the following code:

$a = [2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 33 34 35 36 37 38 39 40];b = [1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 43 45 47 49 50 54 59 60];C = a./b$ ;

C would be the element by element division of A and B, with no loops.

5 0

2 years ago

A computer has a cache and main memory. 20 ns are required to reference a word that is in the cache. If the word is in main memo

Alecsey [184]

Answer:

$T_{average} =12026ns$

Explanation:

Given Information:

$T_{cache}=20 ns$

$T_{main}=60ns$

$T_{disk} =12ms=12,000,000ns$

$hit_{cache} =0.9$

$miss_{cache} =1-0.9=0.10$

$hit_{main} =0.99$

$miss_{main} =1-0.99=0.01$

There are 3 possible cases

1. Location of reference word is in cache

$T_{cache}*hit_{cache} =20*0.9=18ns$

2. Location of reference word is not in cache but in main memory

$(T_{cache}+T_{main})*(miss_{cache}*hit_{main}) =(20+60)*(0.10*0.99)=7.92ns$

3. Location of reference word is neither in cache nor in main memory

$(T_{cache}+T_{main}+T_{disk})*(miss_{cache}*miss_{main})$

$(20+60+12,000,000)*(0.10*0.01)=12000.08 ns$

The average time required to access a referenced word on this system is simply the sum of above 3 cases

$T_{average} =18+7.92+12000.08=12026ns$

5 0

3 years ago

Most search engines work with keyword queries in which you enter one or more words, called _______ _______.

Dennis_Churaev [7]

Search terms.

I hope you like this, please Brainliest me, and have a wonderful night! :D

7 0

2 years ago

For what purpose are high-level programming languages used for

Mars2501 [29]

Answer:

To speed up the compiler during run time

Explanation:

5 0

2 years ago

You just settled in for some study time at the local coffee shop, and you pause long enough to connect your smartphone to the Wi

Sergeu [11.5K]

Answer:

Evil Twin is the correct answer to the given question.

Explanation:

The user still remained throughout the nearby cafe for a certain research hours, and he stopped well sufficiently to link his mobile to the Wireless Fidelity when he could connect to a certain songs when he is learning.

While he's trying for sign up, he discovers he's tapping onto an SSID named "Free Coffee and the Net." as well as this next protection pit against Evil Twin would almost break.
The evil twin seems to be a form for Wi-Fi intrusion which operates via gaining opportunity for the reality that almost all systems as well as smartphones can recognize even the "face" or ESSID of a wireless connection.

7 0

2 years ago