Carl drew his wand, ready to demonstrate it to Hermione's presence, but he ignored one person.

"Hey, you two, magic is forbidden in the library!"

It's Mrs. Pince.

She had been staring at this place for a long time, Hermione had been crying before, and she wanted to come up and ask what was going on.

But after a while, Hermione smiled at Carl's comfort, and she didn't bother anymore.

By now, Karl had drawn his wand and she had stopped it.

Hermione and Carl smiled at each other and began to walk outside the library.

The two walked through the corridor outside the library, up the stairs to the first floor, through the foyer, out of the castle gates, through the courtyard of the school, and then through a square outside, and down the path to the edge of the lake, before stopping.

By the end of October, the weather had already started to cool.

Even if it's early afternoon and the sun is at its most sunny, the breeze by the lake can't help but make people feel a little chilled.

Hermione involuntarily wrapped her robe, and Carl waved his wand when he saw this, a raging flame appeared between the two of them to dispel the cold.

Carl waved his wand again, and casually summoned two thick cotton pads, which alone made Hermione amazed.

She already knew that Carl could use silent spells, but she had never seen Carl's summoning spell in a textbook.

"This is an advanced application of the Flying Spell, and I can teach you if you want to learn it. ”

"Okay. Hermione laughed happily, revealing a pair of bunny teeth.

The water of the great lake shimmered in the sunlight, and Carl and Hermione sat facing each other on the edge of the lake, their faces flushed with the flames in the middle, and the cold wind around them and the cold of the ground could not affect them.

Looking at the mountains and sparkling lakes in the distance, Karl changed his mind, he was not ready to demonstrate directly.

Because of what was about to happen in the evening, he was ready to stay away.

Therefore, he was no longer going to the pre-Halloween dinner in the evening, and he was ready to skip the afternoon class.

Now that he has plenty of time, he decided to start with the basics.

And the basis of combinatorial transfiguration......

"Hermione, do you know computer programming?"

As soon as the words came out, Hermione looked at Carl in a daze.

After a long moment, she nodded and shook her head again.

"I have a computer at home, that's what you're talking about, right? But programming ......."

As she spoke, she grimaced.

This is a bit difficult to do, Carl scratched his head a little, but he didn't expect to get stuck as soon as he came up.

Actually, he didn't have any surprises.

No matter how smart Hermione is, she is only eleven or twelve years old.

At this age, except for those who are specifically cultivated in this direction, which child's parents will expose their children to these.

What's more, in this era, computers are not as common as in his previous life, and Hermione's family can have a computer, which shows that her parents' vision is ahead of their time.

"My parents are both dentists, and they mainly use it to calculate the bill for the clinic and the taxes to be paid. ”

Carl nodded.

After thinking about it, he decided to take a different approach, so he said, "So what is the operating system of your computer?"

In this era, Microsoft and Apple are still competing for the graphical interface operating system, and the operating system commonly used by PC users is either Microsoft's windows 3.0 series or the first generation of Apple's MacOs series.

Interestingly, both sides look down on each other.

Apple ridiculed Microsoft's stupidity, and Microsoft despised Apple's excessive focus on interface effects and excessive use of computer performance, so it could only package the system and the computer for sale.

Of course, from the perspective of future generations, the two systems of the two companies are not very good at present.

But Apple's is indeed a lot more beautiful, compared to Microsoft's rough texture, Apple already has a bit of a shadow of the future, even comparable to window98, maybe even a few points more.

Hermione still shook her head.

Carl laughed, it seems that the concept of an operating system is still difficult for girls to understand.

"Let's change the question...... Since you have a computer at home, you should have played some of the above games, right? Have you ever played Minesweeper?"

Hermione nodded, "Played." ”

Didn't run anymore, Windows users.

In his past and present lives, as a loyal user of Microsoft, Carl gave Hermione's parents a thumbs up in his heart.

Since you have played minesweeper, it is much easier to talk about.

Carl thought for a moment and mentally organized the language.

"In a way, the Hearthstone game, or the so-called combinatorial Transfiguration as the paper says, works like the Minesweeper you play on a computer. ”

With that, he waited for Hermione's face to show a look of sudden realization, but he didn't wait for a long time.

After thinking for a long time, Hermione showed a look of arrogance and whispered, "But I still don't understand." ”

"Uh......" Carl was embarrassed, if he explained the principles of programming from scratch, it would have to be the Year of the Monkey.

Looking at the constipated look on Carl's face, Hermione suddenly felt like a fool.

She was about the same age as Carl, but what Carl said to her was like listening to a book from heaven to her.

She has always been the best of her peers, even at Hogwarts.

But in front of Carl, she really looks like a child who doesn't understand anything, and this gap makes her a little lost.