... describe today; that embedded in this challenge are fantastic opportunities; and that teaching should and could be the most exciting profession on the planet. In addition, essential to leading schools is the understanding that education in the twenty-first century is about conversation-not just the conversation ... , and in their daily lives. The correlation is clear: higher income and better education leads to improved access. We must address the Digital Divide and make efforts to correct it, or the result will be serious social and economic splits, both nationally and internationally....

• Word Count: 4203
• Approx Pages: 17
• Has Bibliography

... silicon chip. 1964 IBM introduces the System/360 computer. Configured as a system, it takes up nearly the same space as two tennis courts. 1965 Digital Equipment Corporation unveils its PDP-8, the first relatively small-sized computer (a "minicomputer"). 1969 A networking system called ARPANET is born; it is the beginning ... look through a piece a hundred miles thick and not even know it is there. A recent development shows how important this can be. Modern digital computers, large NC machines and or laptops are now dependent upon microprocessors-computer chips made from crystals of sili...

• Word Count: 5057
• Approx Pages: 20
• Has Bibliography
• Grade Level: Undergraduate

... inserted into the caddy, and the caddy inserted into the drive. Today, most CD-ROM drives are caddy less. The disc is placed into a tray. Digital data is carved into the CD-ROM as pits (low spots) and lands (high spots). As the laser shines into the moving pits and lands, a ... packet writing" capability requires pre-formatting like a floppy disk. CD-RW's use phase change technology to alter the reflectivity of the disk's surface. DVD (digital versatile disk) drives will soon be able to hold up to 17 GB of data on both sides of the disk. Single sided DVD's can hold ... in Japan. DVD-...

• Word Count: 5237
• Approx Pages: 21
• Grade Level: High School

... computer. Any device that allows information from outside the computer to be communicated to the computer is considered an input device. Since the central processing unit ( CPU ) of a digital computer can understand only discrete binary information, all computer input devices and circuitry must eventually communicate with the computer in this form. Many devices are capable of performing this task ... to 74 degrees instantaneously. The device that is capable of recording continuous changes is an analog device; the device which can sense only discrete changes is a digital device. Time is ...

• Word Count: 2738
• Approx Pages: 11
• Grade Level: High School

... brave new world of free-flowing information might be like. The results exceeded everyone's expectations. The Palo Alto pioneers not only explored the digital future they invented it. Xerox procedures start with its fondness for paper. Hiltzik gives an account of how Xerox operated procedurally. In ... , it was apparent just how much Xerox has to do. The competition showed off wireless palmtops, Xerox's offerings didn't get more exciting than digital office systems that print, copy, fax, scan, and send electronic documents over the Web. Its booth drew steady, but not wildly enthusiastic, ...

• Word Count: 4968
• Approx Pages: 20
• Has Bibliography

... ). 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 (Chposky, 1988). Aiken's machine, called the Harvard Mark I, handled 23-digit numbers and could perform all four arithmetic operations (Dolotta, 1985 ... of building and organizing practical, fast computers. These ideas, which came to be referred to as the stored-program technique, became fundamental for future generatio...

• Word Count: 2566
• Approx Pages: 10
• Grade Level: Undergraduate

... ). 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 (Chposky, 1988). Aiken's machine, called the Harvard Mark I, handled 23-digit numbers and could perform all four arithmetic operations (Dolotta, 1985 ... of building and organizing practical, fast computers. These ideas, which came to be referred to as the stored-program technique, became fundamental for future generatio...

• Word Count: 2566
• Approx Pages: 10
• Grade Level: Undergraduate

... ). 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 (Chposky, 1988). Aiken's machine, called the Harvard Mark I, handled 23-digit numbers and could perform all four arithmetic operations (Dolotta, 1985 ... of building and organizing practical, fast computers. These ideas, which came to be referred to as the stored-program technique, became fundamental for future generatio...

• Word Count: 2571
• Approx Pages: 10
• Grade Level: Undergraduate

... ). 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 (Chposky, 1988). Aiken's machine, called the Harvard Mark I, handled 23-digit numbers and could perform all four arithmetic operations (Dolotta, 1985 ... of building and organizing practical, fast computers. These ideas, which came to be referred to as the stored-program technique, became fundamental for future generatio...

• Word Count: 2566
• Approx Pages: 10
• Grade Level: Undergraduate

... ). 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 (Chposky, 1988). Aiken's machine, called the Harvard Mark I, handled 23-digit numbers and could perform all four arithmetic operations (Dolotta, 1985 ... of building and organizing practical, fast computers. These ideas, which came to be referred to as the stored-program technique, became fundamental for future generatio...

• Word Count: 2510
• Approx Pages: 10
• Grade Level: Undergraduate

... of 33MHz. The cost of buying the hardware has come down considerably as the machines have become commodity items. IBM was first co-operate with Digital Research but when the collaboration failed, they turned to Bill Gates, then 25 years old, to write their operating system, that was MS-DOS ... distance telephone call). At present, the fastest analog modems operate at 56 kbps (Kilobits per Second) for transferring data. We also have Integrated Services Digital Network (ISDN) that operates at 128 kbps and is available from your phone company. Technically, consists of two 64 kbps channels th...

• Word Count: 3669
• Approx Pages: 15

... in the early 1600's. This device, invented by Charles Napier, consisted of a series of rods that could be used to perform multiplication. The first digital calculation machine was built by Blaise Pascal in 1642. Pascal, intending to help his father (a tax collector), created a system of dials that could perform ... the addition of numbers. Several decades later, Gottfried Wilhelm von Leibniz invented a digital apparatus that could not only add, but could also multiply. It was not until 1820 that a mechanical calculator, developed by Charles Xavier Thomas, was ... effective way to back u...

• Word Count: 7384
• Approx Pages: 30
• Grade Level: High School

... can create the illusion of widespread interest by posting a series of messages under different code names. Fraud over the Internet can come in many forms. George Mannes in his article "Digital Dollars- defines Net Cash. This is electronic money that takes the form of letters and digits. Net Cash is a new method to send money across the Internet. The advantage of ... over the illegal information and the transactions crossing the invisible boarders on the Net. Some governments according to Post and Johnson have even given up trying to track down the digital information and concentrate on ...

• Word Count: 3253
• Approx Pages: 13
• Has Bibliography

... under nuclear attack. After his arriving to RANO, Baron's mail goal was to build more stable communications infrastructure, especially with the limited knowledge of other experts about the field of digital computer technology. He started building his ideas about a new theory and structure of communications network. He also was working on the problems of how to build communications structures whose surviving ... early 1980's, e-mail, or network mail as it was referred to, was discovered by thousands of early users. The decade gave rise to many of the enduring features of modern digital c...

• Word Count: 2921
• Approx Pages: 12
• Grade Level: High School

... business model to deliver its computers, services and servers to its customers. This becomes very obvious when browsing the Dell Corporation website. The website has the look and feel of a digital catalog. Pictures of their products are accompanied by colorful descriptions. Customers can easily buy online, or if they prefer the sound of a human voice when spending thousands of dollars, they ... customer via the Dell website. With the removal of the traditional intermediaries from the supply chain, a new type of intermediary has entered the picture. A reintermediary is a company, which a...

• Word Count: 5731
• Approx Pages: 23
• Has Bibliography
• Grade Level: Undergraduate

... " of systems are also included with the original platform. History of Viruses The term "computer virus" was formally defined by Fred Cohen in 1983, while he performed academic experiments on a Digital Equipment Corporation VAX system. Viruses are classified as being one of two types: research or "in the wild." A research virus is one that has been written for research or study ... ...

• Word Count: 4400
• Approx Pages: 18
• Has Bibliography

... $50 billion in sales. Their biggest strength is with the Fortune 1000 companies. They are weakest in the small and medium business segments. In trying to combat this, Compaq acquired Digital Equipment Company (DEC). They believed that with this acquisition they would be able to provide better service to its customers. Compaq would do this by having new expertise in networking ... ...

• Word Count: 3566
• Approx Pages: 14
• Has Bibliography
• Grade Level: High School

... were embodied in the separate "units" of ENIAC. They were plugged together to form a "route" for the stream of information. ENIAC is known as the first successful high-speed electronic digital computer and was used by the Military from 1946-1955 when new weapons were made and when other important data was needed. Eckert-Mauchley with some help from Remington Rand ... ...

• Word Count: 2656
• Approx Pages: 11
• Has Bibliography
• Grade Level: High School

... clubhouse's Online Art Gallery. The clubhouse provides a variety of design tools from introductory paint programs (such as KidPix) to high-end animation tools (such as Director). Other software tools include digital music recording, editing, and mixing tools; desktop publishing tools; programming tools (such as Microworlds Logo); virtual-reality design tools for developing three-dimensional models on the computer screen; and construction ... ...

• Word Count: 2504
• Approx Pages: 10
• Has Bibliography
• Grade Level: High School