Computers incorporate various pieces of equipment that allow the user to interact with the software. Since the idea of a Graphical User Interface (GUI) has been accepted, people rely on a mouse to move the "cursor" around the screen. Most of the time the "cursor" is simply an arrow that lets the user know where its position is on the screen. In addition to a mouse some people prefer trackballs. A mouse and a trackball can be contrasted in terms of their physical shape, logical functionality, and space consumption.
A mouse and a trackball could be described as a total opposite in their physical shape. The mouse received its name because the cord resembles a tail and can move around the workspace in any direction. The mouse also has a ball inside that rolls along the workspace. An electronic connection is also built inside the mouse itself to get power through the mouse in order to run. On the other hand, a trackball is named that because the user is able to move the position of the cursor around the screen using a ball. The ball is located on the topside of the trackball and movement is performed with the thumb instead of the whole hand that is easier and it consumes less time than using the whole hand. Therefore, the mouse and the trackball are different in their shape but they both perform the same task.
A trackball is stationary and therefore minimal; space is needed to allow movement while a mouse needs to move to perform its task. Both devices have buttons on the top, usually two or three depending on the manufacturer, that allows the user to select items on the screen, almost acting like an "enter" button. After having experience with both devices, I have found the trackball is the choice to make when purchasing a user interface device of this type. While mice are easier for the beginning user to control due to the fact that a hand is easier to move in any direction compared to a thumb, a trackball does not require total hand and arm movement to move the cursor around the screen. Instead the user’s hand can stay stationary and movement of the thumb is all that is needed to direct the cursor.
The curveball was invented over 100 years ago by William Arthur Cummings (Fleitz, D). His older brother and teammates called him Candy Cummings (Fleitz, D). Cummings started to develop the curveball in 1861 and 1862 without much progress. After many years Cummings finally invented the curveball in 1867 (Fleitz, D). This invention made him one of the most dominant pitchers of the time. Cummings quit baseball at the age of twenty-eight (Fleitz, D). Other players started to develope their own curveball by the 1874 season (Fleitz, D). Batters started to learn to hit the curveball by the 1877 season (Fleitz, D).
It is a sporting equipment and as such we can easily connect it with fun and competition, it also has holes drilled for the fingers, which leads to a better grip, more control. On the other hand, it is heavy, thus it is something that wants to get away from you, it is hard to hold control of it, it needs those holes drilled if we want to somewhat control it.
There was a Canadian man name Dr. James Naismith, a physical education professor and instructor at the men Christian Association training school. He was trying to keep his gym class to stay active while it was raining that day at school, so he decided to think of some indoor activity that his class could do, then he finally came up the basic rules and nailed a peach basket to a10-foot 3.0 m elevated track. The Peach basket had its bottom still so you had to get the ball out of the basket manually this proved inefficient, however, so the bottom of the basket was removed, allowing the balls to be poked out with a long dowel each time. They use to play basketball with a soccer ball back in that time,These round balls from association football were made, at the time, with a set of laces to close off the hole needed for inserting the
The main differences are in the technique used to throw the ball and the number of players on the field, both styles of soft ball use the underhand throwing style.
ball. This is humorous as it is a petty topic to argue over. There is
Using eye tracking as a input device in human-computer interaction is proving to be extremely useful to severely disabled users. Users in this category may only be capable of controlling their eyes, and are in need of a method to communicate. Using eye tracking as a pointing and gesture input device, users in this category are able to use computer interfaces and communicate in ways that was never before possible. Disabled users are able to make selections and even type text through the use of a keyboard display using dwell time as a selector, or through the use of a set of gestures corresponding to the alphabet.
His idea is to use a small analog computer in the lab to graph and display the trajectory of a moving ball on an oscilloscope, with which users can interact. Missile trajectory plotting is one of the specialties of computers at this time, the other being cryptography. In fact, the first electronic computer was developed to plot the trajectory of the thousands of bombs to be dropped in WWII. As head of Brookhaven's Instrumentation Division, and being used to building such complicated electronic devices as radiation detectors, it's no problem for Higinbotham, along with Technical Specialist Robert V. Dvorak who actually assembles the device, to create in three weeks the game system they name Tennis for Two, and it debuts with other exhibits in the Brookhaven gymnasium at the next open house in October 1958. In the rudimentary side-view tennis game, the ball bounces off a long horizontal line at the bottom of the oscilloscope, and there is a small vertical line in the centre to represent the net. Two boxes each with a dial and a button are the controllers...the dials affect the angle of the ball trajectory and the buttons "hit" the ball back to the other side of the screen. If the player doesn't curve the ball right it crashes into the net. A reset button is also available to make the ball reappear on either side of the screen ready to be sent into play again.
In this Journal there was a study performed on early childhood students and their reaction to touch screen computers. The results were more negative rather than positive proving that it was more productive to use the mouse and keyboard for young children.
is connected to a shaft, which spins a disc. The disc has holes in it
After examining the two types of monitors, it seems that they are similar in more aspects than they are different. Over the last few years LCD screens have closed the gap in many of the categories in which the CRT was superior. In most cases, the choice depends on the personal preference of the individual user. For the hard-core gamer or digital artist a CRT may be slightly better due to the faster response time and better color purity. For most consumers the choice of an LCD or CRT monitor will depend on the price issue. While the cost of LCD screens has been declining over the past few years, they are still considerably more expensive that a comparable CRT. However if money isn’t an issue, a slim and sleek looking LCD might be the way to go over the massive CRT behemoths.
Owning a gaming computer is one of the best investments a person can make in their life. Having a gaming computer can greatly influence one’s entertainment ranges and personal hobbies. Every gamer or anyone who occasionally games should have a gaming computer instead of a gaming console. A gaming console only provides people with basic programs and simple user interface while a gaming computer can be used for any needs one need. A gaming computer is one’s own cable box but better. Having a gaming computer you can have it fully customized to fit whatever theme you would like it to fit, can run many programs and other applications faster than a console, and can be loaded with a plethora of multiple useful programs one can use.
Computers lacked the power to operate on a GUI, or graphical user interface, system. A GUI is a windows and icons system, where the user clicks on icons to operate the computer. Computers of the time ran text interfaces requiring the user to understand commands and communicate with the computer through text prompts. This was not ideal for the average user because it took time to learn how to operate the device. Processes are individual piece...
Quidditch, found in the Harry Potter series, is a competitive sport that is extremely rough, semi-contact sport played by wizards and witches. Each match is played between two teams of seven players riding flying broomsticks. The seven players include: three chasers, two beaters, one keeper, and one seeker. There are four balls that are used during each match: the Quaffle, two Bludgers, and the Golden Snitch. There are six ring-shaped goals, three on each side of the Quidditch pitch, that stand tall above the ground.
One big difference is a type of balls used and what is used to make the balls. For a tennis ball, the "modern tennis balls are made of a hollow rubber core, covered in a wool or nylon shell which is known as the nap. Pressurized air inside the rubber core makes the ball bounce. Balls that haven 't got enough pressure inside make a thud when they hit the floor. These are called dead balls." This information I found on www.bbc.co.uk, which also explains a little bit of the history of the tennis ball. In golf, the balls are made up of "many materials used in golf balls but the majority can is broken down into three categories: rubbers, ionomers and urethanes. In the past, golf balls have been made of wood, leather wrapped around feathers, sap from a gutta tree and sap from balata trees." This information is found on www.srixon.co.uk/ which goes further into the making of the golf balls. The tennis ball is two and a half inches (6.35cms) in diameter and weighs two ounces (56.7g). A golf ball is 1.6 ounces (45.93g) and 1.7 inches (42.7mm) in diameter. Even though tennis balls and golf balls are different sizes, they almost weigh the same weight. I find it very interesting that the balls are such different sizes but only a few ounces different in
Modern society heavily depends on the abilities of computers, Information Technology, and information processing. As such, since access to information occurs mainly through digital means and media, the way information is arranged and presented on the screen is crucial. Because of this need for fast access and easy arrangement arose, in the early 1980s, companies started to work on various graphical user interfaces (or GUI for short). Most dictionaries define a GUI as ‘a way of arranging information on a computer screen that is easy to understand and use because it uses icons, menus and a mouse rather than only text.’ Introducing such software allowed a human-computer interaction on a visual plane, and took computing to an entirely new level of experience. The first GUI started to emerge, as stated above, in the early 1980s, and within the last 3 decades have completely dominated the way in which human-computer communication occurs. Although some sources argue about it, it is acknowledged that the first company to use a proper graphical user interface was Apple. In 1984 they released the Macintosh computer, which used a graphical system to present information on the screen using boxes and taskbars, and utilized a revolutionary pointer device, now widely known as the mouse. Following this event, other companies started releasing their versions of GUI based operating systems, until in 1995 Microsoft presented Windows 95, which soon became a dominant power on the market, and along with its later installments, led Microsoft to be the IT giant of the 20th century. Since its appearance, the GUI have greatly influenced the IT-centered society, and the role computing and digital devices play in its growth.