TRON (The Real-Time Operating System Nucleus)

The Real-Time Operating System Nucleus (TRON) is a real-time operating system (RTOS) developed in the 1980s by Professor Ken Sakamura of the University of Tokyo. It was designed to be small, efficient, and suitable for embedded systems. The TRON Project was launched in 1984 with the aim of creating an open, standardized, and portable RTOS … Read more


Utility programs are small, specialized programs that perform specific tasks. Many utility programs are provided as part of the operating system, while others are available for purchase. Common examples of utility programs include virus scanners, disk defragmenters, and data backup programs. What is a utility in a house? A utility in a house is a … Read more


An interrupt is a signal that indicates to the processor that an event has occurred that needs immediate attention. The processor responds by suspending its current activity and executing a special piece of code known as an interrupt handler to deal with the event. Interrupts are used to handle both hardware and software events. Hardware … Read more

Visual computing

Visual computing, also known as computer graphics, involves the generation and manipulation of images using computers. It is used in a variety of fields, including video games, movies, and scientific visualization. The field of visual computing has its roots in the early days of computing, when programmers used simple graphical primitives to create images on … Read more

Mac OS X Lion

Mac OS X Lion is a Unix-based operating system developed and marketed by Apple Inc. It is the successor to Mac OS X Snow Leopard and is the eighth major release of the Mac OS X line of operating systems. It was released on July 20, 2011 and made available for purchase and download through … Read more

Google Chrome Enterprise

Google Chrome Enterprise is a software package that includes the Google Chrome web browser and a set of management tools. It is designed for organizations that want to deploy the Chrome browser on a large number of computers. The management tools allow administrators to centrally manage settings and preferences, deploy updates, and track usage. What … Read more

Interprocess communication (IPC)

Interprocess communication (IPC) is a mechanism that allows processes to communicate with each other. IPC can be used to allow processes to share data, synchronize with each other, or exchange messages. There are many different types of IPC mechanisms, including pipes, message queues, shared memory, and semaphores. Each type of IPC has its own advantages … Read more

MULTOS (Multiple Operating System)

MULTOS is a multiple operating system designed to provide a high degree of security for smart cards and other devices. It is based on a microkernel architecture, which allows it to be easily ported to different hardware platforms. MULTOS is approved by the major payment schemes for use in their payment cards, and is used … Read more


In computer science, a deadlock is a state in which two or more competing actions are each waiting for the other to finish, and thus neither can ever proceed. Deadlock is a common problem in concurrent programming, and can be difficult to debug and diagnose. There are four conditions that must be met for a … Read more


A motif is a recurring image, concept, or structure in a work of art. Motifs can be literal, such as a flower in a painting, or symbolic, such as a lion in a medieval tapestry. A work of art may have multiple motifs, which can be combined or used in different ways throughout the work. … Read more