I. The Result of Sign-in

• Take a look at the screenshot of the sign-in result.
  

• Let’s describe the result of this sign-in. There are thirty nine students in our class. Thirty three students have signed in and six students are not here because they went to Chengdu and joined the training for the Sports Meeting of College Students. Of course these six students have asked for leave for this reason.

• Last time we learned how to make a classification diagram with the markdown editor.
  S C H O O L { K i n d e r g a r t e n P r i m a r y   S c h o o l M i d d l e   S c h o o l { J u n i o r   M i d d l e   S c h o o l S e n i o r   M i d d l e   S c h o o l C o l l e g e → U n i v e r s i t y { F r e s h m a n : f i r s t − y e a r   c o l l e g e   s t u d e n t S o p h o m o r e : s e c o n d − y e a r   c o l l e g e   s t u d e n t J u n i o r : t h i r d − y e a r   c o l l e g e   s t u d e n t S e n i o r : f o u r t h − y e a r c o l l e g e s t u d e n t \Bbb{SCHOOL}

  \begin{cases} Kindergarten \\ Primary\ School\\ Middle\ School \begin{cases} Junior\ Middle\ School\\ Senior\ Middle\ School\\ \end{cases} $$\text{begin{cases} Kindergarten Primary School Middle School begin{cases} Junior Middle School Senior Middle School end{cases}}$$
  \\ College\rightarrow University
  ⎧⎩⎨⎪⎪⎪⎪Freshman:first−year college studentSophomore:second−year college studentJunior:third−year college studentSenior:fourth−yearcollegestudent $$\{\begin{array}{l}Freshman:first-yearcollegestudent\\ Sophomore:second-yearcollegestudent\\ Junior:third-yearcollegestudent\\ Senior:fourth-yearcollegestudent\end{array}$$
  \\ \end{cases} SCHOOL⎩⎪⎪⎪⎪⎪⎪⎪⎪⎪⎪⎪⎪⎪⎨⎪⎪⎪⎪⎪⎪⎪⎪⎪⎪⎪⎪⎪⎧​KindergartenPrimary SchoolMiddle School{Junior Middle SchoolSenior Middle School​College→University⎩⎪⎪⎪⎨⎪⎪⎪⎧​Freshman:first−year college studentSophomore:second−year college studentJunior:third−year college studentSenior:fourth−yearcollegestudent​​

• The current situation is very serious involution in various industries, so we have to study harder and harder for this situation.

• Now it’s very hard for college students to find proper jobs. Some college students choose to upgrade themselves from college students to university students. Of course, great efforts have to be made for this purpose.

• It’s very important for us to accumulate experiences in our learning, work and life. A fall in the pit, a gain in your wit.

II. The Full Form of CPU

• Reference Article: https://www.includehelp.com/dictionary/cpu-full-form.aspx

• We can regard CPU as the brain of a computer. The performance of a computer is mainly determined by its CPU. When it comes to a personal computer, its CPU is usually called a microprocessor.

• Take a look at the configuration of your own computer
  
  C P U { x 86 { I n t e l A M D A R M { Q u a l c o m m M e d i a T e k \Bbb{CPU}

  \begin{cases} \mathrm x86 \begin{cases} Intel\\ AMD \end{cases} $$\text{begin{cases} mathrm x86 begin{cases} Intel AMD end{cases}}$$
  \\ \mathrm{ARM}
  {QualcommMediaTek $$\{\begin{array}{l}Qualcomm\\ MediaTek\end{array}$$
  \\ \end{cases} CPU⎩⎪⎪⎪⎪⎨⎪⎪⎪⎪⎧​x86{IntelAMD​ARM{QualcommMediaTek​​

• CPU is an abbreviation of the Central Processing Unit. A particular region which is called the CPU socket is the region where the CPU gets installed inside the motherboard for the processing of other inputs and outputs of the computer.

• It conducts all the fundamental arithmetical and logical operations of functioning and conveys out commands and programs of the computer. Conventionally, the term CPU alludes to a processor that comprises the control unit and arithmetical logical unit. CPU is also called as the brain of the computer.

• Central Processing Unit (CPU) = Arithmetical Logical Unit (ALU) + Control Unit (CU)
  

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