"Professor, our country's computers still use punched paper tape to input programs!" Cao Changjiu withered a little, and the pure machine code was a little unappetizing to him, "And this output, how can it still be a teletypewriter, in this way, no matter how fast the computer works, it will be slowed down by the input and output, and the efficiency is too low." ”

Professor Wang opened his mouth to stammer, the machine he was proud of was actually worthless in the mouth of a child, and his face was a little unbearable, "What do you say should be done to be efficient?"

"In terms of input, the punched paper tape must be eliminated, and a lot of time is wasted on paper tape input, so change the keyboard. The program data should be stored on the disk, calculated by the memory processing component, oh, although the disk is relatively small now, but it can be followed by tape, to achieve tape, disk, memory, so that the most reasonable application of resources can be achieved one level down. As for the output display, the paper tape is not only difficult to read and not intuitive, but also slow, it is best to display electronically, with a monitor, if it is not good, use a TV. The results of the calculation can be displayed on the screen in real time, and the program can be edited on the screen in real time, which is convenient. "I have been accusing the flaws of computer technology in this era for a long time (in fact, it is a bit exaggerated here, but the novel, I have to grieve the domestic computer system a little).

Although Professor Wang was very unimpressed with the long-term rhetoric, in his mind, such computer conditions were very different from before, and the good ones couldn't be better. But after thinking about it carefully, Professor Wang has to admit that the long-term solution is better, "However, the subsystem added in this way must be very complex, and the cost has increased by a cut." Now only the mainframe is easy to equip, and the small machine is a bit wasteful. ”

Chang smiled and said: "There's nothing we can't do, it's just that we didn't do it." The original intention of making computers was to liberate human beings from slave-like work, and the complexity of machines made it easier for people to work. Moreover, compared with the cost and efficiency of our scientific research units, cost is not an important aspect. ”

Moreover, Cao Changjiu took a closer look, "Professor, why do five minicomputers only have five terminals?"

"Oh, and the minicomputer doesn't have a time-sharing system yet, and it only supports a single user. ”

fainted, Cao Changjiu has a thorough understanding of the current state of computer technology in Huaxia, such conditions, let's start from scratch.

Professor Wang is also thinking deeply about Cao Chang's words, yes, I didn't think it before, but since the mainframe machine he is responsible for has been developed and tested, he really feels convenient. The operation of these domestic small computers is too cumbersome even for professionals, and it is really necessary to improve it, and I can't imagine that I have to be taught a lesson by a child.

Thinking of this, Professor Wang couldn't help but look at Cao Changchang, it was hard to believe that the little guy was only 14 years old, which was rare. "Little guy, don't you want to study computer technology? The aspects you just mentioned are very good, but you can't just talk about not practicing, can you do it?" This is not a calculator. ”

Cao thought about it for a long time,There's nothing in TV display,I've done this before,It's just that the time-sharing operating system takes a little time-I am not familiar with the antique hardware of the PDP minicomputer。

I was sure in my heart, and I patted my chest for a long time: "The cowhide is not blown, and the train is not pushed." As long as I am familiar with the machines, it is no problem, but I need all the hardware information of these machines, at least one computer for me, as for the materials needed. ”

"Haha, no way! We have these machines, we can't give you a toss. But there should still be one in the warehouse, I'll take a look at it later, but it seems that you're quite confident, should you send someone to help you? Professor Wang was a little surprised, this can be said to be three complete topics, covering many aspects of software and hardware, which he proposed to deliberately make it difficult for a long time, even if it is not successful, it doesn't matter, because there are already people in China who are doing research in this area, and the results are about to be produced.

I didn't expect that the little guy would agree at all.

Professor Wang couldn't help but be interested, thinking that even if he didn't succeed, it was nothing, at least he could see whether the little guy was really powerful or face-saving.

Cao Changchang was as anxious as fire, and he was going to start practicing when he let the words out.

Professor Wang stopped with a smile: "It's not too early, let's stay and have a meal first." "It's a long time coming.

Professor Wang didn't dare to let Cao Changchang live in a guest house because he was too young, and took him back to his home.

The two are obviously not from the same generation, but when they talk about computer technology, they are the first to go, and they have the meaning of seeing each other late.

Of course, for a long time, it is not endless, at least he concealed the things in his dreams, only said that he was literate early, and he was interested in computer technology after reading many books, which provoked Professor Wang to sigh at the injustice of creation, and actually let this kind of genius come out.

The next day, Cao Changjiu followed Professor Wang to the Computing Institute, took the slip approved by Professor Wang into the warehouse and rummaged through it for a while, and sadly found that the "and" Professor Wang said was actually a tattered DJS series minicomputer!

It's said to be a small machine, but it's still quite sizable, and it takes up a full room.

Due to its age, the model of this object can no longer be seen, but looking at the hardware structure of the machine, it is estimated that it is also an antique from the prehistoric era.

Cao Changchang opened the cabinet and found that he couldn't understand it, and then rubbed his eyes to take a closer look.

Oh my God, what era is this, Cretaceous?shit!

Cao Changjiu couldn't help but compare his middle finger, but if he is not happy, he must always do the job. For a long time, I had to scold and scold and tidy up the machine.

Fortunately, although the antique machine is placed in the warehouse, it is well maintained, and it seems to have been started regularly, and the power supply, paper tape, and instructions are readily available.

Basically, Cao Changjiu can only turn on the power supply, and he really knows very little about this kind of dinosaur-level computer, so he has to pick up the manual and gnaw wildly.

Fortunately, computers in this era were made for professionals, and almost all programs had to be written by the users themselves, so the explanatory materials were extremely informative.

Rao is Cao long-term boasted of being well-informed, but he didn't understand how to guide the machine to start, so he had to read the operation instructions thoroughly, so he had a general understanding.