• How to Calculate the Cumulative Grade Point Average

How to Calculate the Cumulative Grade Point Average

How does the display work?

You are probably using the idea that your computer screen creates letters and numbers using a small dot grid (pixels). Early computers use only a few pixels and do not look very spotty and blotchy, but millions of pixels of a modern LCD screen are used and are fast in a clear and printed book form. However, computers have become deadlock in the Dark Ages or early 1970s. Take a look at the points on the calculator and you will see that every seven times or seven different patterns of segments have been created. The processor chip knows that it can display the 0-9 numbers by activating the second combination of these seven segments. It can not easily display letters, although some scientific calculators (many modern electronic calculators made in mathematical and scientific sources) are run.

How does the calculator add two numbers altogether?

So far, we have taken a very simple look at what happens in the calculator, but we have not really guessed how to create two numbers to create a third number. Here are some technical explanations for some of you, who want a little more detail, how to do it. Essentially, it is about representing the decimal numbers, which we use in different formats called binary and compare it with electrical circuits called logic gates.

Binary numbers represent numbers in numbers

People work on numbers in decimal format (Numbers 0-9), because you count on ten fingers and toes. But the things we use are arbitrary for writing a set of things. Suppose you have a set of coins and want to tell me how rich you are. You can show a stack, I can see it, and when I look at many coins I'm convinced that you're rich. But what if I'm not there to see the crowd? Then you can use the symbol to present the coin, and this is the number: A symbol indicates the amount. When nineteen coins were there, you were together with two symbols "1" and wrote that "9" 19 means that this 1x10 plus 9x1 = 19 therefore works with a decimal 10 symbolic system, but if you also have other symbols You can use

In the past century, computers and computers have been created from various switching devices, which can be either in one mode or another. Like a light switch, it is either "on" or "off". For this reason, computers and calculators digitize and process binary codes using only two symbols (0 and 1) to represent the number. Binary is the beauty of the binary code or not, the number 1 10011, which is written for (16x1) + (0x8) + (0x4) + (1x2) + medium (1x1) = 19 That is, you can display each decimal number with a series of switches that are suitable for a GPA Calculator or computer:

Decimal number 1 representation with the ten binary switch 10011

Artwork: A binary number 1 representation of five switches in a computer or computer. Three are pressed (toggled) and two because they indicate the binary number 10011 (close), which is 19 in the decimal.

Use Logic Door with Binary

Suppose you want to add 3 + 2 = 5

By converting two numbers into a calculator binary number solves this type of problem, 11 (binary number 3 = 1 × 2 + 1 × 1) and 10 (in binary 1 x 2 + x x 1 2) (5 binary = 1 × 4 + 0 × 2 + 1 × 1) How does the calculator make the actual amount? It uses logic flap to compare the pattern of active switch, instead a new switching pattern is provided.

A logic gate is actually a simple electrical circuit that compares two numbers and generates the third number based on the original number values. OR, there are four very common logic gates known as AND, NOT and XOR. There are two inputs in one or the door (each can be one or 0), and if inputs (or both) are 1, 1 is generated; Otherwise zero is generated. The second gate also has two inputs, but it only creates a output of 1 if both inputs are 1. There is no entry on the door and it turns it back to the exit. So if you set it to zero, it will generate 1 (and vice versa). One outputs one or the same output at the XOR gate, but it switches to one of two inputs (either at the gate).


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