The COBOL Programming Language

Pedro Trebbau Lopez The COBOL programming language was created in 1959 with the goal of having a universal programming language that could be used on any computer, because in the 1960s there were numerous incompatible models of computer. COBOL was mainly business oriented. COBOL is the acronym of Common Business-Oriented Language. In creating this language, […]

Minicomputers: The IBM System/34

Pedro Trebbau Lopez The System/34 also known as S/34 was a minicomputer manufactured by  IBM. It was introduced in April 1977 as a cheap alternative to the mainframes of the S/370 series . It was the successor to the System/32 and System/36 and the precursor of the smaller sister S/38 system . The S/34 served […]

IBM System 3: Predecessor of the Modern Server

Pedro Trebbau Lopez The IBM System/3, introduced in 1969 and discontinued in 1985, was a cheap IBM computer for office tasks aimed at new customers or organizations that still maintained computers or IBM accounting machines of the 1400 Series. It was the first member of the family that IBM called Midrange. These computers are known […]

What is Ruby on Rails

Pedro Trebbau Lopez Ruby on Rails , also called RoR or Rails is a open source web application framework  written in the Ruby programming language, following the paradigm of Model View Controller (MVC) architecture. It tries to combine simplicity with the opportunity to develop real-world applications writing less code than other frameworks and with a minimum […]

The MiniDisc

Pedro Trebbau Lopez The MiniDisc or MD minidisk is a magneto-optical digital disc developed in the 90s by  Sony. It is  smaller than a conventional CD and has an increased capacity compared with it. The Japanese company wanted to move on with its flagship device, which was released in Japan in January 1992 as an […]

Punched Tape

Pedro Trebbau Lopez The punched  tape is an obsolete data storage method  that consisted of a long strip of paper in which holes were made to store the data. It was much used during a big part of the twentieth century for communications with teletypes, and later as a data storage medium for minicomputers.

Punched Cards

Pedro Trebbau Lopez The punched cards is made ​​of cardboard sheet containing information in the form of perforations in a binary code. These were the first methods used to enter data and instructions into a computer in the 1960s and 1970s. Punch cards were used previously by Joseph Marie Jacquard  in his invention, the automated […]