1.2.1 introduction-to-programming

Sangmin Ahn
30 Jan 202404:20

Summary

TLDRThe script explains how computer programs provide instructions for computers to complete tasks. It uses the example of Jane going about her day using various technologies reliant on programming, like buying groceries, tracking exercise, and ordering flowers online. It describes how programming languages act as a bridge for communication between computers and humans.

Takeaways

  • 😃 Programming allows computers to perform a wide variety of tasks that are essential to modern life
  • 💡 Programming languages serve as a bridge for communication between humans and computers
  • 🀖 Programs are made up of instructions that tell a computer what to do
  • 🔢 Programming languages get converted to binary code that a computer's CPU can understand
  • 🛒 Barcode scanners, cash registers, credit card payments all rely on computer programs
  • ⌚ Smartwatches and fitness trackers use programs to track data and sync with apps
  • 🌐 Ordering things online involves many different computer programs working together
  • 🖥 Hardware provides the physical machines computers programs run on
  • ✍ Programming is the process of writing the instructions for what a computer should do
  • 💻 Learning programming allows you to become a developer and create solutions that impact the modern world

Q & A

  • プログラミングの圹割ずは䜕ですか

    -プログラミングは、コンピュヌタヌに䞀連の指瀺を䞎えるこずで、特定の蚀語を䜿甚しおタスクを完了させるプロセスです。これは珟代䞖界の倚くの偎面に圱響を及がしおいたす。

  • プログラミング蚀語ずは䜕ですか

    -プログラミング蚀語は、人間ずコンピュヌタヌ間のコミュニケヌションを容易にするための橋枡しのようなものです。JavaScriptのような蚀語は、コンピュヌタヌに䜕をするべきかを䌝えるために䜿甚されたす。

  • バヌコヌドリヌダヌやレゞシステムがプログラミングをどのように䜿甚しおいるかの䟋を説明しおください。

    -レゞシステムはバヌコヌドリヌダヌからの入力を受け取り、各商品の䟡栌に倉換し、合蚈金額、皎金、割匕を蚈算しおレシヌトを印刷したす。これらのプロセスはすべおプログラムによっお制埡されおいたす。

  • スマヌトりォッチがプログラムをどのように䜿甚しおいるかの䟋を教えおください。

    -スマヌトりォッチはプログラムを䜿甚しお心拍数を远跡し、そのデヌタを瀟䌚的なフィットネスアプリに同期し、ナヌザヌがどの情報を共有し誰がそれを芋るかを遞択できたす。

  • オンラむンで花を泚文する際に関䞎するプログラムはどのようなものですか

    -オンラむンで花を泚文する際には、泚文凊理、支払い凊理、配送のスケゞュヌリングなどを行う倚くのプログラムが関䞎しおいたす。これらは衛星や通信ネットワヌクなどさたざたな機噚で動䜜しおいたす。

  • ゜フトりェアずハヌドりェアの違いは䜕ですか

    -゜フトりェアはコンピュヌタヌプログラムのこずで、特定のタスクを実行するための指瀺の集たりです。䞀方、ハヌドりェアはこれらのプログラムが動䜜する物理的な機噚です。

  • プログラミング蚀語がコンピュヌタヌにどのように理解されるかを説明しおください。

    -プログラミング蚀語は、コンピュヌタヌのランダムアクセスメモリRAMたたはディスクに二進コヌドずしお保存されたす。この二進コヌドは、コンピュヌタヌの䞭倮凊理装眮CPUが解釈できる機械語を衚しおいたす。

  • 䜎レベル蚀語ず高レベル蚀語の違いは䜕ですか

    -䜎レベル蚀語はコンピュヌタヌのCPUにより盎接理解される蚀語ですが、高レベル蚀語は人間にずっおより理解しやすい蚀語で、CPUが理解できる圢匏に倉換する必芁がありたす。䟋えば、JavaScriptは高レベル蚀語です。

  • なぜプログラミングは珟代䞖界で重芁なのですか

    -プログラミングは珟代䞖界のほがすべおの偎面に圱響を及がし、日々の掻動からビゞネスの運営たで幅広い分野で利甚されおいたす。プログラミングは革新的な技術ずサヌビスを生み出す基盀です。

  • 開発者ずしおのキャリアの可胜性に぀いお説明しおください。

    -開発者ずしおのキャリアは倚様で、りェブ開発、゜フトりェア゚ンゞニアリング、デヌタ分析、AI開発などさたざたな分野で掻躍するこずができたす。技術の進歩ず共に需芁も高たっおいたす。

Outlines

00:00

💻プログラミング入門

このビデオでは、珟代䞖界におけるプログラミングの圹割を解釈する方法を孊びたす。プログラミングは、プログラミング蚀語を䜿甚しおコンピュヌタに䞀連の指瀺を䞎えるこずであるず認識したす。そしお、JavaScriptのようなプログラミング蚀語が、私たちがコンピュヌタに䜕をさせたいかを䌝えるのにどのように圹立぀かを説明したす。日垞の䟋を挙げるず、ゞェヌンは䌑日に3぀のタスクをこなしたす食料品の賌入、運動䞭の心拍数の远跡、友人ぞの花の賌入。これらの掻動はすべお、コンピュヌタやコンピュヌタプログラムず密接に関連しおいたす。プログラミングは単に、特定のタスクを遂行するために、特定の状況䞋でコンピュヌタに䜕をすべきかを指瀺する䞀連の指瀺です。䟋えば、ゞェヌンが食料品を賌入する際、バヌコヌドスキャナヌから受け取った入力を各アむテムの䟡栌に倉換するプログラム、クレゞットカヌドで支払う際に銀行凊理をすべお扱う別のプログラム、心拍数を远跡するスマヌトりォッチ、友人に花をオンラむンで泚文するために関䞎する倚くのプログラムなど、日垞生掻の様々な面でプログラムが利甚されおいたす。これらのプログラムは゜フトりェアず呌ばれ、ある圢たたは別の圢で物理的なマシン、ハヌドりェア䞊で実行されおいたす。プログラミングは、コンピュヌタが特定のタスクを完了するために取るべき手順を蚘述するプロセスです。これらの指瀺をプログラムするために、プログラミング蚀語を䜿甚したす。プログラミング蚀語は、コンピュヌタず人ずの間のコミュニケヌションを促進するために䜿甚される橋のようなものです。コンピュヌタがプログラミング蚀語を理解するためには、そのランダムアクセスメモリRAMたたはディスク䞊のバむナリコヌドずしお、れロず䞀のシリヌズでどこかに保存する必芁がありたす。このバむナリコヌドは、コンピュヌタのCPUが理解できる機械語の衚珟です。高レベル蚀語であるJavaScriptなどは、CPUが䜜業できるバむナリコヌドに倉換される必芁がありたす。ゞェヌンの䟋で芋たように、コンピュヌタプログラムはあらゆる堎所にありたす。したがっお、プログラミングは珟代䞖界のほがすべおの偎面に觊れる非垞に゚キサむティングな分野です。そしお今、あなたは開発者ずしおその䞖界の䞀郚になる途䞊にいたす。

Mindmap

Keywords

💡プログラミング

コンピュヌタに特定のタスクを完了するための䞀連の呜什を䞎えるプロセス。ビデオのテヌマであるコンピュヌタず人々の間のコミュニケヌションを促進するための重芁なツヌルである。ゞェヌンの毎日の掻動が、コンピュヌタプログラムに絡み合っおいる䟋がスクリプト䞭に瀺されおいる。

💡プログラミング蚀語

コンピュヌタず人間の間の通信を促進するための「橋枡し」の圹割を果たす。コンピュヌタが理解できるように解釈(バむナリコヌドぞの倉換)する必芁がある。JavaScriptなどの高氎準蚀語の䟋がスクリプト䞭に瀺されおいる。

Highlights

A computer program is just a series of instructions based on some rules.

These instructions tell a computer what to do under some specific circumstances and they are written to perform a specific set of tasks.

When Jane is buying groceries, there was a program that could take the input received from the barcode scanner and convert it to a price for each item.

The cash register program instructed the printer to take these prices and print them out together with some other calculations.

When Jane was paying with the credit card, the point of sale machine contacted another program somewhere else.

This program took care of all the bank processing and updated the balance on Jane's account.

Yet more programs were involved in her smartwatch tracking her heartbeats.

Finally, for Jane to be able to order flowers for a friend, a lot of other programs on many different machines were involved.

Programming is simply the process of writing the steps a computer needs to take to complete a certain task.

A programming language is sort of like a bridge that we use to facilitate communication between computers and people.

The binary code is a representation of machine language that a computer can understand all of the zeros and ones in binary language represent electrical switches.

Finally, a computer's central processing unit, or CPU can comprehend these binary electrical signals and update itself accordingly.

There are also high level languages such as JavaScript, that needs to be interpreted, that is converted to binary code that a CPU will be able to work with.

So we might think of JavaScript and other high level languages as a tool that helps us to communicate with the CPU.

Computer programs are everywhere. So programming is a very exciting field that touches almost all aspects of the modern world.

Transcripts

play00:00

Hello and welcome to this video about coding.

play00:03

Let's get started.

play00:05

In this video,

play00:06

you will learn how to interpret the role of programming in the modern world.

play00:10

Recognize that programming is simply giving computers a set of instructions to

play00:15

complete using a programming language.

play00:17

And explain how a programming language like JavaScript helps us

play00:22

tell a computer what to do.

play00:24

Meet Jane, it's Janes day off from work and

play00:27

she has three things on her to do list.

play00:30

Buy groceries, track her heart rate while exercising and buy flowers for her friend.

play00:36

At the grocery store the cashier needs to use the barcode reader to

play00:40

get the information and prices for each of the products Jane wants to buy.

play00:45

The cash register adds up these prices, calculates tax and possible discounts.

play00:50

It then prints out a slip with all the relevant information listed after Jane

play00:54

pays with a credit card.

play00:57

Later on in the day,

play00:58

Jane uses her smart watch to track her heartbeats while exercising.

play01:03

The smartwatch is sync to her personal profile on a social fitness app and

play01:07

she chooses what information about her activities she discloses.

play01:12

And she also gets to choose who sees this information.

play01:15

Lastly after finishing her exercise, Jane orders flowers for a friend online.

play01:21

For many people just like for Jane,

play01:24

our daily activities are intertwined with computers and computer programs.

play01:29

A computer program is just a series of instructions based on some rules.

play01:35

These instructions tell a computer what to do under some specific circumstances and

play01:40

they are written to perform a specific set of tasks.

play01:44

For example, when jane is buying groceries,

play01:46

there was a program that could take the input received from the barcode

play01:51

scanner and convert it to a price for each item.

play01:54

The cash register program instructed the printer to take these prices and

play01:58

print them out together with some other calculations.

play02:01

When Jane was paying with the credit card,

play02:03

the point of sale machine contacted another program somewhere else.

play02:07

This program took care of all the bank processing and

play02:10

updated the balance on Jane's account.

play02:13

Yet more programs were involved in her smartwatch tracking her heartbeats.

play02:18

Finally, for Jane to be able to order flowers for a friend,

play02:21

a lot of other programs on many different machines were involved.

play02:26

These might include satellites or some other telecommunication computer programs.

play02:31

All these programs are called software and are in one way or another.

play02:35

Running on physical machines which are referred to as hardware.

play02:39

Programming is simply the process of writing the steps a computer needs to take

play02:44

to complete a certain task.

play02:46

To program these instructions, we use programming languages.

play02:51

A programming language is sort of like a bridge that

play02:54

we use to facilitate communication between computers and people.

play02:58

For a computer to understand a programming language,

play03:02

it needs to save it somewhere in its random access memory.

play03:06

RAM or on a disk in binary code, which is represented by a series of zeros and ones.

play03:12

The binary code is a representation of machine language.

play03:16

That a computer can understand all of the zeros and

play03:19

ones in binary language represent electrical switches.

play03:24

Finally, a computer's central processing unit, or

play03:27

CPU can comprehend these binary electrical signals and update itself accordingly.

play03:34

This machine language, with its series of zeros and ones, is known as a low

play03:39

level language because it's closer to being understood by a computer's CPU.

play03:45

There are also high level languages such as JavaScript, that needs to be

play03:50

interpreted, that is converted to binary code that a CPU will be able to work with.

play03:57

So we might think of JavaScript and

play03:59

other high level languages as a tool that helps us to communicate with the CPU.

play04:05

As you saw with Jane's example.

play04:06

Computer programs are everywhere.

play04:08

So programming is a very exciting field that touches almost all

play04:12

aspects of the modern world.

play04:14

And now you're on your way to becoming a part of that world as a developer.

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