2. What are the types of computer internal memory? What are their characteristics?

Internal memory, also known as memory, is used to store "programs" and "data". When the CPU executes programs, it accesses programs and data from memory. Memory can be divided into two parts: ROM (read only memory) and RAM (random access memory). The contents stored in ROM are designed by computer designers and manufacturers in advance. Users can only use them, but can't modify, delete or add them, Ram is usually used to store user's program and data. Generally speaking, computer memory is for ram

Is Chinese the simplest language in the world?
Is Chinese the only language without tense change?

No~
You can speak Chinese. Of course, you don't think Chinese grammar is very important
But foreigners don't think so
The future past tense is also expressed in Chinese, but it is not like that in English and Korean
For example, the Chinese word "Le" and "Guo" means the past. If you are asked to teach foreigners, the questions they ask will make you very uncomfortable, We are most familiar with the "Bei" sentence and "Ba" sentence are their difficulties. Why are you beautiful? Why are you wrong? Why do you have to say "you are so beautiful." why does "China defeated the United States. China defeated the United States" mean that China won? Isn't victory the antonym? And so on
At that time, you would not think that Chinese is a language that you can speak as long as you master vocabulary+_ +It's OK to read the book Xianhan. It's a nightmare
In a word, every language has its advantages and disadvantages. English also has its advantages. When you look at this word, you can basically know what part of speech it is. German is more clear, while Chinese is basically unable to see part of speech~
For example, it's easier for us to learn English than Japanese to learn Japanese, which is not only related to our emphasis on English, but also related to Chinese pronunciation, word order and more English to refer to. French learning English is like learning dialects. Many words in Japanese and Korean are Chinese words, so it's easier for us to learn them than people in Europe and America

Which language is closest to English in grammatical structure

I love you so much
If you've ever seen one of the African languages where the subject and the object are put together, the whole sentence seems deformed to the Chinese
So English is more suitable for Chinese to learn

The year is a time unit based on ()

A unit of time based on (the period of the earth's revolution)

The text of birch in the sixth grade

Betula platyphylla
By my window,
There is a birch,
It's like silver frost,
Covered with snow
Hairy branches,
The lace of snow embroidery is natural and unrestrained,
Clusters of flowers bloom together,
The white fringe is picturesque
In the dim silence,
The white birch stands on the jade,
In the golden glow
Snowflakes are shining brightly
Birches roam around
The late morning glow,
It looks at the snowy branches
Another layer of silver luster

What is the least common multiple of 72 and 27!

72=8*9
27=3*9
The greatest common factor is 9
So the least common multiple of 72 and 27 is 8 * 9 * 3 = 216

1 in 0.25 is equal to X in 1.6

X/1.6=1/0.25
X/1.6=4
X=4*1.6
X=6.4

The following propositions are proved to be false propositions with counter examples
(1) If x (x-1) = 0, then x = 1
(2) If a > b, then AC ^ 2 > BC ^ 2
(3) The center line on one side of a right triangle is equal to half of that side

(1) When x = 0, X (x-1) = 0
(2) When C = 0, C ^ 2 = 0, AC ^ 2 = BC ^ 2 = 0
(3) In an isosceles right triangle (right side = a), in a right triangle where the middle line of a right side acts as a hypotenuse, the hypotenuse is greater than the sum of two right sides, that is, the hypotenuse is greater than 3 / 2a, so this proposition is not true

If the ratio of three numbers is 3:4:5, and the minimum number plus 1, then the three numbers will be equal, then the original three numbers are equal______ ．

Let three numbers be: 3x, 4x, 5x respectively, then 3x + 1, 4x, 5x form an equal ratio sequence, that is, (4x) 2 = 5x (3x + 1), simplify to: x2-5x = 0, that is, X (X-5) = 0, the solution is: x = 0 (rounding off) or x = 5, so the original three numbers are 15, 20, 25. So the answer is: 15, 20, 25

Given x ^ 2 + 6x + y ^ 2-2y + 10 = 0, find the value of XY
Given x ^ 2 + 6x + y ^ 2-2y + 10 = 0, find the value of XY

x^2+6x+y^2-2y+10=0
(x^2+6x+9)+(y^2-2y+1)=0
(x+3)^2+(y-1)^2=0
x+3=0 x=-3
y-1=0 y=1
xy=(-3)*1=-3

2. What are the types of computer internal memory? What are their characteristics?