History of the Computer Industry in America Essays - Free Essays

History of the Computer Industry in America Essays - Free Essays History of the Computer Industry in America America and the Computer Industry Only once in a lifetime will a new invention come about to touch every aspect of our lives. Such a device that changes the way we work, live, and play is a special one, indeed. A machine that has done all this and more now exists in nearly every business in the U.S. and one out of every two households (Hall, 156). This incredible invention is the computer. The electronic computer has been around for over a half-century, but its ancestors have been around for 2000 years. However, only in the last 40 years has it changed the American society. >From the first wooden abacus to the latest high-speed microprocessor, the computer has changed nearly every aspect of peoples lives for the better. The very earliest existence of the modern day computers ancestor is the abacus. These date back to almost 2000 years ago. It is simply a wooden rack holding parallel wires on which beads are strung. When these beads are moved along the wire according to "programming" rules that the user must memorize, all ordinary arithmetic operations can be performed (Soma, 14). The next innovation in computers took place in 1694 when Blaise Pascal invented the first digital calculating machine. It could only add numbers and they had to be entered by turning dials. It was designed to help Pascals father who was a tax collector (Soma, 32). In the early 1800s, a mathematics professor named Charles Babbage designed an automatic calculation machine. It was steam powered and could store up to 1000 50-digit numbers. Built in to his machine were operations that included everything a modern general-purpose computer would need. It was programmed byand stored data oncards with holes punched in them, appropriately called punchcards. His inventions were failures for the most part because of the lack of precision machining techniques used at the time and the lack of demand for such a device (Soma, 46). After Babbage, people began to lose interest in computers. However, between 1850 and 1900 there were great advances in mathematics and physics that began to rekindle the interest (Osborne, 45). Many of these new advances involved complex calculations and formulas that were very time consuming for human calculation. The first major use for a computer in the U.S. was during the 1890 census. Two men, Herman Hollerith and James Powers, developed a new punched-card system that could automatically read information on cards without human intervention (Gulliver, 82). Since the population of the U.S. was increasing so fast, the computer was an essential tool in tabulating the totals. These advantages were noted by commercial industries and soon led to the development of improved punch-card business-machine systems by International Business Machines (IBM), Remington-Rand, Burroughs, and other corporations. By modern standards the punched-card machines were slow, typically processing from 50 to 250 cards per minute, with each card holding up to 80 digits. At the time, however, punched cards were an enormous step forward; they provided a means of input, output, and memory storage on a massive scale. For more than 50 years following their first use, punched-card machines did the bulk of the world's business computing and a good portion of the computing work in science (Chposky, 73). By the late 1930s punched-card machine techniques had become so well established and reliable that Howard Hathaway Aiken, in collaboration with engineers at IBM, undertook construction of a large automatic digital computer based on standard IBM electromechanical parts. Aiken's machine, called the Harvard Mark I, handled 23-digit numbers and could perform all four arithmetic operations. Also, it had special built-in programs to handle logarithms and trigonometric functions. The Mark I was controlled from prepunched paper tape. Output was by card punch and electric typewriter. It was slow, requiring 3 to 5 seconds for a multiplication, but it was fully automatic and could complete long computations without human intervention (Chposky, 103). The outbreak of World War II produced a desperate need for computing capability, especially for the military. New weapons systems were produced which needed trajectory tables and other essential data. In 1942, John P. Eckert, John W. Mauchley, and their associates at the University of

Biography of Judith Resnik, NASA Astronaut

Biography of Judith Resnik, NASA Astronaut Dr. Judith Resnik was a NASA astronaut and engineer. She was part of the first group of female astronauts recruited by the space agency, and the second American woman to fly in space. She participated in two missions, logging a total of 144 hours and 57 minutes on orbit. Dr. Resnik was part of the ill-fated Challenger mission, which exploded 73 seconds after launch on January 28, 1986. Fast Facts: Judith A. Resnik Born: April 5, 1949 in Akron, OhioDied: January 28, 1986 in Cape Canaveral, FloridaParents: Sarah and Marvin ResnikSpouse: Michael Oldak (m. 1970-1975)Education: Bachelors in Electrical Engineering from Carnegie Mellon University, doctorate in Electrical Engineering from the University of MarylandInteresting Fact: Judith A. Resnik planned at one time to become a concert pianist. She was accepted at Juilliard School of Music but turned it down to study mathematics. Early Life Born on April 5, 1949, in Akron, Ohio, Judith A. Resnik grew up under the influence of two talented parents. Her father, Marvin Resnik was an optometrist who had served in the Army in World War II, and her mother, Sarah, was a paralegal. Resniks parents raised her as an observant Jew and she studied Hebrew as a child. She was also very much interested in music, planning at one time to become a concert pianist. Many of her biographies describe Judith Resnik as a very strong-minded child, bright, disciplined and talented at whatever she set out to learn and do. Official NASA portrait of astronaut Dr. Judith A. Resnik. NASA   Education Judith (Judy) Resnik went to Firestone High School, graduating as valedictorian of her class. She actually had a place waiting for her at Juilliard School of Music in New York but elected instead to study mathematics at Carnegie Mellon University. While there, she began studying electrical engineering. She did her masters degree work at the University of Maryland. Eventually, she went on to get a Ph.D. in the subject in 1977. While pursuing her graduate studies, Resnik worked at RCA on missile and radar projects for the military. Her research into integrated circuitry caught NASAs attention and played a role in her acceptance as an astronaut. She also did research into biomedical engineering at the National Institutes of Health, with a particular interest in vision systems. During her graduate studies, Resnik also qualified as a professional aircraft pilot, ultimately piloting NASA T-38 Talon aircraft. During the years before her eventual acceptance at NASA, she worked in California, getting ready for the application and tryout process. NASA Career NASAs first class of female astronauts: Shannon W. Lucid, Margaret Rhea Seddon, Kathryn D. Sullivan, Judith A. Resnik, Anna L. Fisher, and Sally K. Ride.   NASA In 1978, Judy Resnik became a NASA astronaut at the age of 29. She was one of six women accepted into the program and went through its rigorous years of training. She often cited the actress Nichelle Nichols (from Star Trek) as an influence on her decision to join NASA. In her training, Resnik focused on all the systems astronauts were required to know, and paid particular attention to robotic arm operations, as well as the deployment of orbiting experiments and solar array systems. Her work on the ground focused on tethered satellite systems, spacecraft manual control systems, and software applications for the remote manipulator systems.   Astronaut Judith Resnik during egress training at NASA. NASA   Resniks first flight took place aboard the space shuttle Discovery. It was also the maiden voyage for the spacecraft. With that mission, she became the second American to fly, following the first woman, Sally Ride. Many viewers of the IMAX film The Dream is Alive first saw her as the astronaut with long, flowing hair, fast asleep on orbit during one of the scenes.  Ã‚   Astronaut Judith Resnik (left) and crewmates aboard space shuttle Discovery in 1984.   NASA Resniks second (and last flight) was aboard the space shuttle Challenger, which was to carry the first teacher to space, Christa McAuliffe. It broke up 73 seconds into launch on January 26, 1986. Had that mission been successful, she would have been one of the mission specialists, working on a variety of experiments. In her short 37-year lifespan, she logged 144 hours and 57 minutes on orbit, worked toward two degrees in science, and pursued both her work and her hobbies (cooking and car racing) with equal intensity.   Personal Life Judith Resnik was briefly married to engineer Michael Oldak. They had no children, and both were engineering students when they met. They divorced in 1975.   Memorial plaque at the Astrononaut Memorial wall in Florida. This Dignity Memorial bears the names of all who have died in space-related mishaps. Seth Buckley, CC BY-SA 3.0 Awards and Legacy Judith A. Resnik was honored many times after her death. Schools are named for her, and theres a lunar crater on the far side of the Moon called Resnik. The Institute of Electrical and Electronics Engineers established an award in her name, given to people who make outstanding contributions to space engineering. At the Challenger Centers, a network of museums and centers named for the Challenger 7, she holds a place of interest and honor, particularly for female students. Each year, NASA honors lost astronauts at the Memorial Wall and space mirror at the Kennedy Space Center Visitor Center in Florida, including the Challenger Seven who died in the 1986 tragedy.   Sources Dunbar, Brian. â€Å"Memorial for Judith Resnik.† NASA, www.nasa.gov/centers/glenn/about/memorial.html.NASA, NASA, er.jsc.nasa.gov/seh/resnik.htm.NASA, NASA, history.nasa.gov/women.html.â€Å"Remembering Judy Resnik.† Space Center Houston, 21 Jan. 2019, spacecenter.org/remembering-judy-resnik/.Suleyman, www.jewishvirtuallibrary.org/judith-resnik.