• Courses
      • Back
      • To be a Programmer (without Mathematics)
  • Posts
      • Back
      • Program solving
      • Storytelling
      • Technology plus ideas
      • Documents
      • Shortcuts
      • Reporting
  • Services
      • Back
      • Web Services
      • Skills to hire
      • Links exchange
  • Contact us
      • Back
      • Login
      • Register
    • Español (España)
    • English (United Kingdom)
The Goto. The great forgotten. Not to think structured.
I still remember when I was programming with GoTo. Programming without using it was not conceivable. Until the revolution started by Dijkstra with his note "Goto considered harmful" came to "structure" our minds for program development.The progress made with "Structured Programming" is incalculable, which allowed not only to increase the speed of having correct programs, but also to increase the number of people capable of programming.At that time, "Top to Bottom Programming" and "...
Technology plus Ideas.
Technology plus Ideas. In this section we intend to comment on technology applied or applicable in the future, as well as presenting ideas on various technological topics. You can add content by yourself if you register and request it to us at info@havanatrends.com Any technological comment is welcome. Any technological idea is welcome. This section contains technological topics from the past as well as ideas for the future. We look forward to your collaboration. Octavio Bae...
Main Motorcycle Agencies between 1940 and 1950 in Havana
Loading...
The articles presented in this space are the authorship of Onelio García Pérez and his friends, © www.HobbiesEnRed.com, based on empirical research, there have been few investigated periods as a result of addressing issues that go beyond the particular objectives of the Author. The historical approach present in the fascicles is the product of the li...
How I met Dr. Mitchell Valdés.
In other articles I have commented that in 1972 I was studying Pure Mathematics and I  coincide with Dr. Pedro Valdés (Peter, as everyone knows him) that he was continuing his studies in Mathematics to increase his working capacities in Neurosciences.We became good friends, we studied together in the University Park, in the Classrooms, in the Library, until one day he told me: "Tomorrow, Saturday, I'll wait for you at my house to continue."Saturday comes, I go to Peter's house, I r...
My fellow operators.
{loadmoduleid 135} In other articles I have commented that in the 70s our Neuroscience department had a CID-201-B minicomputer compatible with the PDP-8 of the DEC company and that the CID-201-B had only a typewriter teletype, a perforated paper tape reader, and a paper tape printer.In order to use this equipment, after developing and fine-tuning each program, it was necessary to "punch" the tapes with the data, or, for example, use the CONCATISO program (see article) to convert t...
Terms and Conditions
This website is owned and operated by HavanaTrends. These Terms establish the terms and conditions under which you can use our website and services offered by us. This website offers visitors readings on how to solve problems by programming, real or fictional stories, link shortcuts for various interests, design, hosting, and programming services for websites and Android APKs, useful documents, as well as articles in our Store. By accessing or using the website of our service, you...
Reporting 0003
First of all, let us recall the basic idea: let us spread the good news and reject the darkness of the bad... This universe is polar; there are positives and negatives. While opposite poles attract and like poles repel in the realm of electricity, in the spiritual realm, what almost always happens is that the positive attracts the positive, and the negative attracts the negative. That is why it is important to let positive news circulate —and even to support it with all our might— so that toget...
Who am I and what I have programmed
Hi !. I am Octavio, and as editor of this section I offer to share your experiences in programming, from curious anecdotes to difficult moments when making large or small systems. We will also share how to solve all kinds of problems using programming as a tool, for PCs, for Mobiles, and even for the Cloud. If you are a novice, then welcome, and if you are an expert, then welcome too. All kinds of writings will be interesting to us to publish, because where else will you find tha...
A doctor and a monkey overboard!
It was the year 1977-78 and by then Dr. Mitchell Valdés had already made much progress in psychophysiological experimentation using MEDICID-1 and MEDICID-2 as reported in other articles, even using cats as experimental subjects.Then he is visited by Dr. Erwin, who had managed to create a vervet monkey business on the island of Saint Kitts. It is important to clarify that the vervet monkeys, brought to Saint Kitts by the conquerors from Africa, are compatible with man in many respec...
The MEDICID-1. The great little equipment.
It was 1974 and an Engineer from the Department of Neurophysiology named Alberto Caro had designed a device for the experimental work of the department that could be controlled by our CID-201-B computer, compatible with the PDP-8, which I referred to in the article "CONCATISO. My first program.".Due to production priorities, the Central Institute for Digital Research (ICID) did not give us what would later be named as MEDICID-2 and for that reason, with great inventiveness, the eng...
What Homer Didn't Tell Us...
Troy, a great epic of ancient times. Do you remember? Paris, the Trojan prince, abducted Helen, wife of Menelaus, the Greek king. Menelaus, his pride wounded, but with the true intention of seizing Troy and thus controlling its trade and strategic location, launched a great invasion that resulted in a total siege of Troy for ten years. So, to put it in modern terms, which are also favored by high-ranking officials of the most powerful country on Earth, what do you think was happening in the "re...
FOCAL. Salcedo the Great.
It was the early 70s of the last century, and in our PDP-8 compatible minicomputer from Digital Equipment Corporation (DEC) there was almost no way to program except by hand-coding machine language. Later, the Central Institute for Digital Research (ICID) developed the assembler and later the LEAL language (LEnguaje ALgoritmico) that I have referred to in other articles and in which it was quite difficult and tedious to program as it was postfix notation, especially when evaluating...
Spreadsheets are limited because... and serious errors can occur.
It is known to all that the use of Spreadsheets, such as the current Excel, since the beginning when VisiCalc appeared in 1979, have allowed many users without programming knowledge to be able to develop many and varied applications.In particular, the world of economics has been empowered by Spreadsheets. An accountant can directly carry out all or almost all of his work using them, since from the beginning they were conceived with a varied communication with other data processing...
CONCATISO. My first Program.
CONCATISO. My first Program. Well, first I must tell you where and why the need arose for a program such as CONCATISO, my first professionally speaking program. It was the years 1972... 1973... and the Department of Neurophysiology of the Center for Scientific Research (CENIC), led by Dr. Thalía Harmony, who in passing I will say was my main mentor in my early working years, A CID-201-B digital computer was awarded, manufactured by the then Central Institute for Digital Researc...
Vulnerabilities in Windows? They are dictated to the programmers.
Do you really think that programmers do our job "so badly" and make "so many mistakes" that we cause the thousands of vulnerabilities that the Windows operating system has had, has, and will have?As a fact, I affirm that all "legal" antiviruses ask Microsoft for various "entry and interception points" where to put their "legally added" programming to the operating system. For example, how do you think an antivirus "checks" every file before being "opened" by Windows Explorer? Becau...
THE MOTORCYCLES OF INDEPENDENCE (1885-1940)
Loading...
The articles presented in this space are the authorship of Onelio García Pérez and his friends, © www.HobbiesEnRed.com, based on empirical research, there have been few investigated periods as a result of addressing issues that go beyond the particular objectives of the Author. The historical approach present in the fascicles is the product of the limited bibliography available...
How we finish the ANFACT.
Well, I didn't know whether to put this article in "Stories" or if here, in "ProgramSolving", but in the end, due to the randomness of the Programming, I decided to put it here.It was between 1973-1974 and a Programmer from the Center's Department of Mathematics, Raisa Cepero Bonilla, was in charge of carrying out a project to carry out a "Factorial Analysis by Correspondence", which is a fairly sophisticated statistical analysis and not very broad utilization even today.It was pro...
Pedro Valdés from Neuro found me... and I was looking for the same thing!
I will tell how I started working in the Department of Neurophysiology of the National Center for Scientific Research. It was the year 1971 and I was studying Pure Mathematics at the University and it turns out that a doctor, Dr. Pedro Valdés Sosa, better known as "Peter", also began to study Mathematics as a second career. Peter and I were together for almost two years, we became good friends, we even studied together. Peter was already a worker with many obligations, he skippe...
I met Ileana and for a moment I was Don Quixote.
Under Rocinante's helmets I made the happiest quixot of my life.It was the 80s of the last century, and my friend Peter and I, being at a scientific event at the University, we read on a flyer that in "El Bodegón de Bartolo", a nearby coffee bar, from 10 AM it could be consumed with beer At an open bar and we couldn't hold out, we went out there with Peter's girlfriend, Yanai.When we get to the bar they inform us that no, that there is nothing at all until 5 pm, and then Yanai tell...
Microsoft Access as a database is limited by design and what to do.
As the title indicates, the microsoft office database product, Microsoft Access, is limited by the company itself so that it does not compete with other products such as SQL Server and C# program development, for example.I explain:The first limitation is the commercial one. Access is not sold alone, but as part of Microsoft Office and therefore an application made in Access cannot be distributed without first verifying that the customer has a valid license of the same Office as suc...
More In Program Solving  Technology plus Ideas  Documents  Storytelling  Reporting  
  • Program solving
  • Storytelling
  • Technology plus ideas
  • Documents
  • Shortcuts
  • Services
  • Contact us
Back to top
© HavanaTrends 2005 - 2026
Developed by HT over Gantry 5 framework
  • Terms And Conditions
  • Privacy Policy