Monday, January 29, 2007

The computer

A computer is a machine for manipulate data according to a list of commands known as a program. Computers are tremendously adaptable. In fact, they are universal information-processing machines. According to the Church–Turing theory, a computer with a positive minimum entrance capability is in principle capable of performing the responsibilities of any other computer. Therefore, computers with capability ranging from those of a personal digital supporter to a supercomputer may all achieve the same tasks, as long as time and memory capacity are not consideration. Therefore, the same computer design may be modified for tasks ranging from doling out company payrolls to controlling unmanned spaceflights. Due to technical progression, modern electronic computers are exponentially more capable than those of preceding generations. Computers take plentiful physical forms. Early electronic computers were the size of a large room, while whole modern embedded computers may be lesser than a deck of playing cards. Even today, huge computing conveniences still exist for focused scientific computation and for the transaction processing necessities of large organizations. Smaller computers designed for personage use are called personal computers. Along with its convenient equivalent, the laptop computer, the personal computer is the ubiquitous in order processing and communication tool, and is typically what is meant by "a computer". However, the most general form of computer in use today is the embedded computer. Embedded computers are usually comparatively simple and physically small computers used to control one more device. They may control equipment from fighter aircraft to industrial robots to digital cameras. in the beginning, the term "computer" referred to a person who performed numerical calculations, frequently with the aid of a mechanical calculating device or analog computer. In 1801, Joseph Marie Jacquard made an improvement to the presented loom designs that used a series of punched paper cards as a program to weave involved patterns. The resulting Jacquard loom is not considered a true computer but it was an essential step in the growth of modern digital computers.
Charles Babbage was the first to conceptualize and design a completely programmable computer as early as 1820, In 1801, Joseph Marie Jacquard made an improvement to the presented loom designs that used a series of punched paper cards as a program to weave involved patterns. The resulting Jacquard loom is not considered a true computer but it was an essential step in the growth of modern digital computers.
but due to a combination of the restrictions of the technology of the time, limited finance, and an incapability to resist tinkering with his design, the device was never really constructed in his lifetime. By the end of the 19th century a number of technologies that would later prove helpful in computing had appeared, out such as the punch card and the vacuum tube, and large-scale automated data giving using punch cards was performed by tabulating equipment designed by Hermann Hollerith.During the first half of the 20th century, many technical computing wants were met by increasingly difficult special-purpose analog computers, which used a direct mechanical or electrical model of the problem as a base for subtraction (they became ever more rare after the development of the programmable digital computer). Sequence of gradually more powerful and stretchy computing devices were construct in the 1930s and 1940s.

Wednesday, January 24, 2007

The credit score

The credit score is calculated using a formula provided by the Fair Isaac Corporation under the act of FCRA. The three national bureaucrats dealing with credit reports are Equifax, Experian and Trans Union. The credit report can vary between these three credit bureaus since the credit reporters do not submit the reports in all three bureaus. Basically it is the procedure that one‘s credit report is the average taken from the values of these three bureaus. There may be a small difference existing between these bureaucracies credit reports which doesn’t seem to harm any of the customers credit score hence no issue has arisen till now in regards to the above.

Thursday, January 18, 2007

White tigers

White tigers are Bengal tigers or tigers of mixed Bengal/Amur ancestry with pink noses, white-to-creme coloured fur and black, grey or chocolate-coloured stripes. Their eyes are usually blue, but may be green or amber. There are several hundred captive white tigers worldwide, all of whom can trace their ancestry back to a white Bengal tiger caught in Rewa, India.
Due to the opinion that their colouration is widely considered striking, white tigers have become popular attractions in zoos and entertainment that showcases exotic animals; the magicians Siegfried and Roy are famous for using several trained white tigers in their shows. Contrary to popular belief, white tigers are not a separate species in their own right, but are a mutant form of the orange Bengal tigers.

Thursday, January 11, 2007

People mover

A people mover or automated people mover is a fully automated, grade-separated transit system. The term is generally used only to describe systems serving relatively small areas such as airports, downtown districts or theme parks, but is sometimes applied to considerably more complex automated systems.The term does not imply any particular technology, and a people mover may use technologies such as monorail, duorail, automated guide way transit or maglev. Propulsion may involve conventional on-board electric motors, linear motors or cable traction.
Some complex APMs deploy fleets of small vehicles over a track network with off-line stations, and supply near non-stop service to passengers. These taxi-like systems are more usually referred to as personal rapid transit. Other complex APMs have similar characteristics to mass transit systems, and there is no clear cut distinction between a complex APM of this type and an automated mass transit system.

Monday, January 01, 2007

In Physics

Space is one of the few fundamental quantities in physics, meaning that it cannot be defined via other quantities because there is nothing more fundamental known at present. Thus, similar to the definition of other fundamental quantities, space is defined via measurement. Currently, the standard space interval, called a standard meter or simply meter, is defined as the distance traveled by light in a vacuum during a time interval of 1/299792458 of a second. This definition coupled with present definition of time makes our space-time to be Minkowski space and makes special relativity theory to be absolutely correct by definition.
In classical physics, space is a three-dimensional Euclidean space where any position can be described using three coordinates. Special and general relativity uses space-time rather than space; space-time is modeled as a four-dimensional space with the time axis being imaginary in special relativity and real in general relativity, and currently there are many theories which use more than four-dimensional spaces.
Before Einstein's work on relativistic physics, time and space were viewed as independent dimensions. Einstein's discoveries have shown that due to relativity of motion our space and time can be mathematically combined into one symmetric object — space-time.