lesson 2 History and the computer

• Mediawijsheid
• Middelbare school
• havo
• Leerjaar 2

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The digital world 

Lesson 2:

After this lesson you:

1. Know the history of the computer

 2. Can deal with basic problems with your computer

3. Know your 'computer language'

Een deel van deze les bestaat uit luisteren met vragen en een deel zelf verwerken. 

Why this subject?

• There is plenty of technology in all the tasks of life that you have to deal with. That is in fact your duty. 
• This often changes so you have to keep understanding.
• There is work to be done because government research states that most young people find technology difficult. Being handy with your phone is not necessarily the same as being handy with everything else.
• This subject lays the foundations for later.

The four revolutions of the computer 

From nomads till 21st century

1. When permanent settlements arose, so did trade routes: the first continuous flow of long contact --> new professions were needed.
2. since 1460, when people like Columbus started sailing to other parts of the world, more of the world reached us. New things like potatoes came into our world. 
3. Technology like the internal combustion engine made faster communication between different parts of the world possible: sailing and flying.
4. After the developments of the Second World War, a new development accelerated --> the computer and the Internet. 

gebasseerd op het boek van William Knocke plaatsloze nieuwe wereld

Gevolgen

Today's ultimate computer

Consequences

New professions after each revolution.

na toewerken dat de leerling dit dat zijn telefoon in feite een minicomputer is. En dus dingen heel erg vergelijkbaar zijn. 

What does a phone do for you that makes it unnecessary for you to use a computer?

The origin

Computer used to be a name for someone who makes calculations. The Latin 'computare' therefore means 'to calculate'. This could, for example, be useful for

ship navigation.

Babbage 1791 - 1871

Charles Babbage tried to build a machine that could perform calculations automatically. It could work by inserting punched cards. You can still see punch cards on barrel organs. In this way, he had a machine that received an input, calculated things, and gave an output.

Ada Lovelace 1815 - 1852

Ada Lovelace heard about Charles Babbage's ideas and the analytical machine around 1834. She later came into contact with Babbage and helped him design this machine.

 What she made was a plan that is now seen as the first computer programme: the machine did things by itself.

Alan Turing (1912 - 1954)

He became famous because he had cracked the enigma code in the Second World War with a gigantic computer. His model paved the way for the 'smarter' computer.

IBM

This company made it possible to have a computer at home on your desk. It was still very expensive and difficult to operate because you had to code. Not everyone could do this. 

The mouse

Due to the mouse, it became possible to control a desktop.  This meant that ordinary people did not have to use codes later on to control the computer. You could just click on programmes.

Bill Gates 

Founder of Microsoft.

This company built one of the first operating systems that we still use on computers today. 

Steve Jobs: iPhone

'You always have a mouse with you: your finger,' said Apple founder Steve Jobs.

 With the iPod music player, Steve Jobs made Apple hip again. A few years later, the biggest success since the PC came out: the smartphone. This is the smallest computer ever made. 

Which invention/inventor do you consider the most important?

Work time

Time: 15 minutes. 

Look through the lessonup that has now been shared with you at homework. 

There, you go through boxes.

In between and at the end there will be tests to see if you have understood and remembered everything from class.

Hier moet je de les gaan delen met de leerling. Zij zien dan alles waar je het leerling poppetje bij aan hebt gezet. 

Soorten besturingssystemen

Linux

The kind of operatingsystems

It is usually referred to by the word OS.

OS= Operating System

At school you mainly learn how Windows works.

Soorten besturingssystemen

There are several digital devices. Click on them to learn more about them. You need to recognise the difference between them.

Question. Which operating system do we use at school?

1. Linux
2. Mac OS
3. Chrome OS
4. Windows 10

The computer: the outside

The on & off button. Lights up white or blue when pressed. 

These are hotspots: just click on them. You will find them throughout the lesson

The computer: the inside

put it at the correct place

Keyboard

mouse

Ethernetcable

monitor power cable

Place of on/off button monitor

Power

usb poorten

Monitor hdmi

Symbols

On a computer, we do not have enough space to indicate everything with words. That is why we have a lot of symbols on the computer. The following pages will teach you more about this. 

'Computer language'

As with technology, we need certain words to indicate what we are talking about. 

The following sections are about these words. You should know them from this lesson on. 

De computer: Je werkscherm

This initial screen is called the desktop

Each programme takes place in a window. 

These pictures on the desktop are called icons. The phone version of these is, of course, an app.

Belangrijke pictogrammen

Important programs 

This is the explorer. Here you will find all the documents and folders on the computer.

And, of course, web browsers such as Edge and Chrome. These programmes give us access to the Internet.

The bar at the bottom of your desktop is called the taskbar. This is always the bar where the time and date are. If you press the flag (this button is called start) the start menu opens. 

Click here!

This windows flag is where you find the start menu.

This is also where you shut down the computer. You always have to shut down the computer when using media wisdom.

Open as last

This picture shows the start menu in Windows 10. Here you can always find all programs on a computer, even if you don't see them on the desktop. 

Finally

Now that you know everything there is to know about the computer for this lesson, let's check it briefly. Try to answer these questions without looking back. That way, you'll know if you've learned anything. 

Suppose my computer screen doesn't switch on any more. What will you check first? And then? And then?

Volgende keer een probleem vraag voorleggen. 

Suppose you download a file but can't remember where it is, where do you look?

You have no more Internet, what are you going to check?