Linux OS
Linux OS or GNU/Linux is a family of Unix-like operating systems based on the Linux kernel and that maintain some level of compatibility. Do not confuse Linux OS or GNU/Linux with the Linux kernel. When there is a need to…
Pablo Gallardo
Cybersecurity and IT professional. Find more info at pmgallardo.com
Middleware
Middleware is a type of computer software program that provides services to software applications beyond those available from the operating system. The term is frequently used in the context of distributed systems. For example, when talking about cluster middleware. You…
Unix-like OS
A Unix-like OS is an operating system based on Unix. The number of process states in Unix systems is 9. List of Unix-like OS Unix-like OS families: Unix System V Unix System V was developed by AT&T. Xenix Xenix was…
Service-oriented Architecture
Service-oriented architecture (SOA) is covered in topic 2023.58 of CSSTIAE. SOA Standards and References SOA Standards and references: The OASIS SOA Reference Model can be found on this external link. SOA Principles SOA principles: OASIS SOA Reference Model’s Service Orientation…
E-learning
This post is about e-learning. A webcast is 1:n. A webinar has more interaction than webcast. Open educational resource (OER) (in Spanish REA, recursos de educación abiertos). A massive open online courses (MOOC) Triangle of e-learning Components of the e-learning…
2030 Agenda for Sustainable Development
The 2030 Agenda for sustainable development is a document issued by the United Nations. The goal of the 2030 agenda is reaching the committed sustainable development goals (SDGs) before 2030. It consists of 17 objectives with 169 goals. 17 objectives:…
Seguridad de la Información en el Sector Público en España
Este artículo resume aspectos sobre la seguridad de la información en el sector público en España. Normas de firma electrónica en España Se regula en la ley: Ley 6/2020, de 11 de noviembre, reguladora de determinados aspectos de los servicios…
Applications of Information Technology
This post summarizes some examples of applications of information technology. E-commerce You can read this post about e-commerce. E-learning You can read this post about e-learning. Decision Support Systems You can read this post about decision support systems. Computer-Supported Cooperative…
TCP/IP Model
The TCP/IP framework is officially known as the internet protocol suite. It was implemented before the OSI model was released, and this is why it does not follow it. TCP/IP Protocol Model There are diffeent Internet Group Management Protocol You…
Data Preservation
This post is about data preservation. The topic of information retrieval models is covered in CSSTIAE exam, topic 2023.105. Information Retrieval Information retrieval (in Spanish, recuperación de la información) is used in search engines, databases, and document retrieval systems. Information…