What is computer....?
A computer is an electronic machine that processes information in the other words, an information processor . it takes in raw information (or data) at one end, stores it until it’s ready to work on it, chews and crunches it for a bit, then spits out the results at the other end. All these processes have a name. Taking in information is called input, storing information is better known as memory, chewing information is also known as processing, and spitting out results is called output.Styles UK Designer Clothing
Once you understand that computers are about input, storage, processing, and output, all the junk on your desk makes a lot more sense. Your keyboard and mouse, for example, are just input units ways of getting information into your computer that it can process. If you use a microphone and voice recognition software, that's another form of input. Your computer probably stores all your documents and files on a hard-drive a huge magnetic memory. But smaller, computer-based devices like digital cameras and cellphones use other kinds of storage such as flash memory cards. As for output, your computer almost certainly has a screen and probably also stereo loudspeakers. You may have an inkjet printer on your desk too to make a more permanent form of output. Your computer's processor is a microchip buried deep inside. It works amazingly hard and gets incredibly hot in the process. That's why your computer has a little fan blowing away to stop its brain from overheating. SEO India
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# personal computer : A small, single-user computer based on a microprocessor. In addition to the microprocessor, a personal computer has a keyboard for entering data, a monitor for displaying information, and a storage device for saving data.
# workstation : A powerful, single-user computer. A workstation is like a personal computer, but it has a more powerful microprocessor and a higher-quality monitor.
# minicomputer : A multi-user computer capable of supporting from 10 to hundreds of users simultaneously.
# mainframe : A powerful multi-user computer capable of supporting many hundreds or thousands of users simultaneously.
# supercomputer : An extremely fast computer that can perform hundreds of millions of instructions per second.
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Computer Generation
The history of computer development is often referred to in reference to the different generations of computing devices. Each generation of computer is characterized by a major technological development that fundamentally changed the way computers operate, resulting in increasingly smaller, cheaper, more powerful and more efficient and reliable devices.Read about each generation and the developments that led to the current devices that we use today.
First Generation: The first computers used vacuum tubes for circuitry and magnetic drums for memory, and were often enormous, taking up entire rooms. They were very expensive to operate and in addition to using a great deal of electricity, generated a lot of heat, which was often the cause of malfunctions. First generation computers relied on machine language to perform operations, and they could only solve one problem at a time. Input was based on punched cards and paper tape, and output was displayed on printouts.
Second Generation: Transistors replaced vacuum tubes and ushered in the second generation of computers. The transistor was invented in 1947 but did not see widespread use in computers until the late 50s. The transistor was far superior to the vacuum tube, allowing computers to become smaller, faster, cheaper, more energy-efficient and more reliable than their first-generation predecessors. Though the transistor still generated a great deal of heat that subjected the computer to damage, it was a vast improvement over the vacuum tube. Second-generation computers still relied on punched cards for input and printouts for outputSecond-generation computers moved from cryptic binary machine language to symbolic, or assembly, languages.
Third Generation: Integrated circuits (foreground), silicon chips contain multiple transistors. 1964. A pioneering example is the ACPX module used in the IBM 360/91, which, by stacking layers of silicon over a ceramic substrate, accommodated over 20 transistors per chip; the chips could be packed together onto a circuit board to achieve unheard-of logic densities. The IBM 360/91 was a hybrid second- and third-generation computer.
Fourth Generation: The microprocessor brought the fourth generation of computers, as thousands of integrated circuits were built onto a single silicon chip. What in the first generation filled an entire room could now fit in the palm of the hand. The Intel 4004 chip, developed in 1971, located all the components of the computer - from the central processing unit and memory to input/output controls - on a single chip.
In 1981 IBM introduced its first computer for the home user, and in 1984 Apple introduced the Macintosh. Microprocessors also moved out of the realm of desktop computers and into many areas of life as more and more everyday products began to use microprocessors.
Fifth Generation: Fifth generation computing devices, based on artificial intelligence, are still in development, though there are some applications, such as voice recognition, that are being used today. The use of parallel processing and superconductors is helping to make artificial intelligence a reality. Quantum computation and molecular and nanotechnology will radically change the face of computers in years to come. The goal of fifth-generation computing is to develop devices that respond to natural language input and are capable of learning and self-organization.
Sixth Generation: Intel decided to go to the Slot 1 interface for the Pentium II, while AMD and Cyrix were sticking with Socket 7 on Pentium-class boards.
1994 - Netscape 1.0 was written as an alternative browser to NCSA Mosaic.
1995 - Windows '95 was launched by Bill Gates & Microsoft.
1997 - AGP is introduced. The need for increased bandwidth between the main processor and the video subsystem originally lead to the development of AGP. AGP is considered a port, and not a bus, because it only involves two devices (the processor and video card) and is not expandable. One of the great advantages of AGP is that it isolates the video subsystem from the rest of the PC so there isn't nearly as much contention over I/O bandwidth as there is with PCI. It is 32 bit and has a high-bandwidth 66 MHz speed. AGP has defined a 2X mode, which uses special signaling to allow twice as much data to be sent over the port at the same clock speed.
Computer Engineering
The world needs engineers who can work on both sides of the gap between digital hardware and software. That is exactly what the Computer Engineer is educated to do. Look at it this way:
- A Computer Scientist traditionally focuses on the theoretical and software aspects of a computer system, with little emphasis on the hardware or circuitry.
- An Electrical Engineer traditionally focuses on the circuitry and hardware aspects of the system with little emphasis on software.
- A Computer Engineer studies the whole computer system in its entirety, and is equally
comfortable working with both hardware and software. S/he also understands
how the hardware and software interact with each other. This ability to
work on both sides of the hardware/software interface makes
the Computer Engineer uniquely qualified to conceive, design, and integrate
complete computer systems from scratch.
Computer Art
Computer art is the art of computer as an artificial intelligence. A computer can solve an algorithmic problem by digital computing. Therefore, as long as art has an algorithmic procedure, a computer should be able to have its own artistic behavior. Although the aesthetic quality of art seems to have been overstressed in our modern art because of the philosophical influence of epistemological subjectivism since the 18th century, art properly has its generative base on the same human reason as in the case of science as shown in the classic Greek art and Renaissance art. This tells us that art is one kind of logical activity in its essence. Here is the raison d'etre of computer art.Contact Center : Our contact center solutions provide a flexible communications platform to meet your business needs. Contact us today for all-in-one contact center solutions to fit your situation pediatricians in new york
