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Lorico [155]
3 years ago
7

What is said to be the first mechanical calculator​

Computers and Technology
2 answers:
lakkis [162]3 years ago
8 0

Answer:

Pascaline, also called Arithmetic Machine, the first calculator or adding machine to be produced in any quantity and actually used. The Pascaline was designed and built by the French mathematician-philosopher Blaise Pascal between 1642 and 1644.

Explanation: hope that helps

jeka943 years ago
5 0

Pascaline, also called Arithmetic Machine.

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A user calls to complain that her computer is behaving erratically. Some days it functions correctly, and other days, it crashes
Hitman42 [59]

Answer:

Replace the motherboard.

Explanation:

The motherboard is the core of the computer. If the motherboard is oozing brown stuff, signifying that one of the sectors has been eroded or is about to disrupt, it needs to be replaced before further damage can be made.

The screws in the hard drive can easily be replaced.

As for the memory sticks, they will operate best if they were the same brand and the same memory size and hertz.

5 0
3 years ago
There was a thunderstorm in your area and the power is out. The traffic lights are not functioning. Explain what you should do w
nika2105 [10]

Answer:

STOP and check if it is safe to cross

Explanation:

6 0
3 years ago
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The most widely used computer device​
irinina [24]

Answer:

I think a phone...........

5 0
3 years ago
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Hello Answerers it would be great if you could answer this:
meriva

Answer:

A for loop can be used to make something repeat as many times as you program it to, but a while loop only stops when you complete the task, or a certain condition is met. So, if you program a for loop to fill a bucket six times it will fill the bucket six times.

5 0
3 years ago
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Determine the number of bytes necessary to store an uncompressed RGB color image of size 640 × 480 pixels using 8, 10, 12 and 14
dexar [7]

Answer:

For 8 bits / Color Channel: 921, 600 bytes.

For 10 bits / Color Channel: 1,152,000 bytes.

For 12 bits / Color Channel: 1,382,400 bytes.

For 14 bits / Color Channel : 1,612, 800 bytes.

Explanation:

Un uncompressed RGB color image of 640 pixels wide by 480 pixels height (VGA resolution) uses 3 samples of x bits fin order to represent the quantity of each primary color (red, green and blue) in a given pixel of the image.

So, if we use 8 bits/ sample, we can calculate the bytes needed to store a complete image as follows:

640*480*3*8 bits = 7, 372,800 bits. (1)

As, by definition, 1 byte= 8 bits, we have:

Nº of bytes = 7,372,800 / 8 = 921,600 bytes. (2)

In order to get the bytes needed to store the same image, using 10, 12 and 14 bits/ sample, all we need is replacing 8 by 10, 12 and 14 in (1), and then dividing by 8 as in (2).

Proceeding in this way we obtain:

640*480*3*10 = 9,216,000 bits ⇒    1,152,000 bytes.

640*480*3*12 = 11,059,200 bits ⇒   1,382,400 bytes.

640*480*3*14=   12,902,400 bits ⇒  1,612,800 bytes.

8 0
3 years ago
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