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The historical development of computers
The historical development of computers
History of computing
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MODELLING AND SIMULATION LAB 1 WHAT IS MODELLING AND SIMULATION MODELLING - modelling is defined as a process of representing a model which includes its construction and working, it is an act of building a model. A model can be described as a program that represents a real life system in a virtual environment and helps in the analysis and predictions of changes of the system. It does so by using mathematical formulas and calculations to predict the properties of a system. SIMULATION- In modelling and simulation, simulation is the operation of a computer model which predicts how a system will behave in a set of conditions. It is used in the analysis of the performance of a system. The main difference between modelling and simulation is that …show more content…
Individual units had to be connected together in order to make a system that can deal with differential equations under study. Both analog and digital computers started to appear in a number of organizations in the late 1940s and the early1950s. the technical staffs at the time had a responsibility of learning how to use the computers and to use them to solve the day to day problems. Other engineers then informally decided to come together to share ideas and experiences. At that time computer simulation was not that useful as it took a long time to give results, it needed skilled people to operate, it costed both time and personnel. The other thing was that the results obtained were often unclear, a good example is the case of telephone systems where there was an attempt to …show more content…
In the 1960 the data and the program were fed to the computer in a batch via punched cards. Punched cards were first used in manufacturing in job or order packets for material requisition, labor reporting and job tracking. The IBM 1620 was mostly relied on at that time. IBM presented the ‘Gordon simulator’ to Norden in 1961. Geoffrey Gorden presented in the same year his paper on a General Purpose Systems Simulator (GPSS) at the fall joint conference, it was used in the designing the system for distributing weather information to general aviation for FAA.IBM provided both the software and the hardware. The results were obtained in six weeks; this was a new tool for designers. Simulation groups were formed in organizations as Air Force Logistics Command, UNIVAC, etc. The design engineers favored to convey their problems to programmers or a simulation group. The GPSS simulation groups interacted through the IBM user’s group conference called SHARE. In 1962 SIMSCRIPT was produced at Rand Corporation by Harry Markowitz, Bernard Hausner and Herberrt Karr to simulate their inventory problems. J. Buxton and
Across the nation many nursing programs are facing clinical site shortages for their students. The hardest hit population is the license vocational nursing (LVN) students. Many hospitals are trending toward achieving “Magnet Status” for their institutions. Therefore, LVN students are no longer allowed to complete their clinical training in several hospitals. This action forces many nursing programs to seek alternative methods of clinical instruction. In years past simulation training was used as an aid to facilitate learning. Today, for many nursing programs scenario based simulation is the only option for learning patient care.
... simulations, which range from computer run screen simulations to physical simulations, are helping the medical trainees acquire high edge experiences from repetitive exercises of complex medical procedures. The skills and understanding derived from this kind of training is hopefully expected to improve the actual medical service delivery once the students graduate.
The simulated reality hypothesis is a simple idea that says that we, and everything in the known universe, is currently living inside a computer simulation. This idea has been talked about by philosophers for centuries and even has some ties to religion. Sci-fi writers have been writing about simulated reality for years and we have seen it visualised on tv shows yet the idea that we may be living inside of a computer simulation is almost unknown to most people.
A model is a simplified representation of the structure and content of a phenomenon or system that describes or explains the complex relationships between concepts within the system and integrates elements of theory and practice (Creek et al 1993).
With technology moving so quickly within the medical and nursing fields it is vital to embrace new and innovative ways to learn how to care for a patient. A nurse or nursing student is faced with the ever growing challenge of keeping up with new technologies. A fairly new way to gain education and build upon skills is with the use of simulated based learning. With the use a simulated nursing environment a student will be able to increase their level of understanding of new skills and technologies; this great resource has three major forms of real-life reproduction, can be used in many different areas of nursing, provides a means to evaluate a student’s understanding and demonstration of a skill, and eliminates the potential for harming a patient. With all education, the ultimate goal of mastering a specific trade or skill is the wanted end result. Simulated based education is a method that can be used within the field of nursing to accomplish this goal.
In the fifties, computers were in the experimental stage they were extremely hard to work with, and were a constant technicians worst nightmare, because often enough you had to replace the fuses (s Appendix a).
“…With the advent of everyday use of elaborate calculations, speed has become paramount to such a high degree that there is no machine on the market today capable of satisfying the full demand of modern computational methods. The most advanced machines have greatly reduced the time required for arriving at solutions to problems which might have required months or days by older procedures. This advance, however, is not adequate for many problems encountered in modern scientific work and the present invention is intended to reduce to seconds such lengthy computations…” From the ENIAC patent (No. 3,120,606), filed 26 June 1947.
So all in all, Cyber Physical System is a system in which cyber and physical systems are tightly integrated at all scales and levels. The Integration of computer and physical processes is also known as Cyber Physical System. Physical processes are monitored and controlled by the embedded computer and networks. Usually this is done by using feedback loop physical process affect computations.
The word modelling in a layman’s language is simply the process of taking a shape; 3D modeling can therefore be stated as the process of giving something shape such that it can be completed into a 3D mesh. Typically, a 3D model can be created by taking a simple object that is otherwise known as a primitive(primitives can be anything ranging from a single point object-vertex-, a two dimensional line-edge-, a curve-a spline- or a 3 dimensional object-faces or polygons-) and then one extends it into a shape such that it can be refined and detailed.
To guide you in your quest to finding the right type of modeling work, here are some of the most common modeling
The Whirlwind computer had a video display that was controlled interactively by a light gun. The display attracted users much more than computer code. The Whirlwind computer became the basis for SAGE (Semi-Automatic Ground Environment), a defense command-and-control system developed for the Air force. In the 1960s Ivan Sutherland’s MIT doctoral thesis introduced a Sketchpad interactive drawing system, which established the theoretical groundwork for computer graphics software (Machover 14). In the mid-1960s, computer graphics was booming in private industry. General Motors had released DAC-1 a computer-aided design system, and Itek developed the Digigraphics electronic drafting machine. By the late 1960s the first storage-tube display terminals appeared, shortly followed by direct-view storage tube display terminals (DVST) which cost thousands of dollars; however this was an improvement to the tens to hundreds of thousands spent initially for display systems. In the 1970s Turnkey systems emerged, beforehand users had to develop software to make their hardware work however turnkey systems provided a haven to users from software issues. Bit-mapped raster displays developed as memory...
George Stibitz constructed a 1-bit binary adder suing relays in 1937. This was one of the first binary computers. In the summer of 1941 Atanasoff and Berry completed a special purpose calculator for solving systems of simultaneous linear equations, later called "ABC" ( Atanasoff Berry Computer). In 1948 Mark I was completed at Manchester University. It was the first to use stored programs. In 1951 whirlwind was the first real-time computer was built for the US Air Defense System.
Hence, at this stage it is to explore and experiments with models, dummies and storyboards so that we can portray a glimpse of how the design will look like in reality, not to mention this method also can be used to convey ideas so that they can be understood in this context.
Technology continued to prosper in the computer world into the nineteenth century. A major figure during this time is Charles Babbage, designed the idea of the Difference Engine in the year 1820. It was a calculating machine designed to tabulate the results of mathematical functions (Evans, 38). Babbage, however, never completed this invention because he came up with a newer creation in which he named the Analytical Engine. This computer was expected to solve “any mathematical problem” (Triumph, 2). It relied on the punch card input. The machine was never actually finished by Babbage, and today Herman Hollerith has been credited with the fabrication of the punch card tabulating machine.
The fist computer, known as the abacus, was made of wood and parallel wires on which beads were strung. Arithmetic operations were performed when the beads were moved along the wire according to “programming” rules that had to be memorized by the user (Soma, 14). The second earliest computer, invented by Blaise Pascal in 1694, was a “digital calculating machine.” Pascal designed this first known digital computer to help his father, who was a tax collector. Pascal’s computer could only add numbers, and they had to be entered by turning dials (Soma, 32). It required a manual process like its ancestor, the abacus. Automation was introduced in the early 1800’s by a mathematics professor named Charles Babbage. He created an automatic calculation machine that was steam powered and stored up to 1000 50-digit numbers. Unlike its two earliest ancestors, Babbage’s invention was able to perform various operations. It relied on cards with holes punched in them, which are called “punch cards.” These cards carried out the programming and storing operations for the machine. Unluckily, Babbage’s creation flopped due to the lack of mechanical precision and the lack of demand for the product (Soma, 46). The machine could not operate efficiently because technology was t adequate to make the machine operate efficiently Computer interest dwindled for many years, and it wasn’t until the mid-1800’s that people became interested in them once again.