Showing posts from July, 2019

Embedded System

An embedded system is a controller with a dedicated function within a larger mechanical or electrical system, often with real-time computing constraints. It is embedded as part of a complete device often including hardware and mechanical parts. Embedded systems control many devices in common use today. Ninety-eight percent of all microprocessors manufactured are used in embedded systems. Modern embedded systems are often based on microcontrollers (i.e. CPUs with integrated memory or peripheral interfaces), but ordinary microprocessors (using external chips for memory and peripheral interface circuits) are also common, especially in more complex systems. In either case, the processor(s) used may be types ranging from general purpose to those specialized in certain class of computations, or even custom designed for the application at hand. A common standard class of dedicated processors is the digital signal processor (DSP).
Since the embedded system is dedicated to specific tasks, desig…

Designer Babies

A designer babies is a baby whose genetic makeup has been selected or altered, often to include a particular gene or to remove genes associated with disease. This process usually involves analysing human embryos to identify genes associated with disease, and selecting embryos which have the desired genetic makeup - a process known as pre-implantation genetic diagnosis. Other potential methods by which a baby's genetic information can be altered involve directly editing the genome - a person's genetic code - before birth. This process is not routinely performed and only one instance of this is known to have occurred as of 2019, where Chinese twins Lulu and Nana were edited as embryos, causing widespread criticism.
Genetically altered embryos can be achieved by introducing the desired genetic material into the embryo itself, or into the sperm and/or egg cells of the parents - either by delivering the desired genes directly into the cell or using gene editing technology. This pro…

Digital Literacy

Digital literacy refers to the shared cultural practices of encoding and decoding meaning on the world through multiple modalities produced or transferred using information digitally recorded and stored .Digital literacies encompass a bricolage of skills, attitudes, and dispositions as participants negotiate meaning and identity in a networked society and may include, but is not limited to, an individual's grammar, composition, writings, images, audio, video, podcasting, remixing and designs using technology.

Digital literacy, first coined in 1997 by Paul Gilster  built on the expanding role of anthropological research in the field of literacy as well on concepts of visual literacy, computer literacy , and information literacy, Overall digital literacy shares many defining principles with other fields that use modifiers in front of literacy to define ways of being and domain specific knowledge. The term has grown in popularity in education and higher education settings and can be f…

Genetic Engineering

Genetic engineering is the manipulation of genetic material by either molecular biological techniques or by selective breeding. While selective breeding has been practiced for thousands of years (domestication of the dog; farming corn; brewer's yeast) the manipulation of genetic material in vitro was developed in the 1970s. The DNA is manipulated within a test tube and subsequently introduced back into a cell in order to change the processes of a cell or organism. In its simplest conception a molecular biologist can combine molecules of DNA from different organisms encoding different properties. Genetic engineering, also called recombinant DNA technology, involves the group of techniques used to cut up and join together genetic material, especially DNA from different biological species, and to introduce the resulting hybrid DNA into an organism in order to form new combinations of heritable genetic material. These achievements led to concerns in the scientific community about pote…

Virtual Reality (VR)

Virtual Reality (VR) is the use of computer technology to create a simulated environment. Unlike traditional user interfaces, VR places the user inside an experience. Instead of viewing a screen in front of them, users are immersed and able to interact with 3D worlds. By simulating as many senses as possible, such as vision, hearing, touch, even smell, the computer is transformed into a gatekeeper to this artificial world. The only limits to near-real VR experiences are the availability of content and cheap computing power. Virtual Reality’s most immediately-recognizable component is the head-mounted display (HMD). 

Human beings are visual creatures, and display technology is often the single biggest difference between immersive Virtual Reality systems and traditional user interfaces. For instance, CAVE automatic virtual environments actively display virtual content onto room-sized screens. While they are fun for people in universities and big labs, consumer and industrial wearables ar…