Sunday, December 4, 2011

what is software?

Computer instructions or data. Anything that can be stored electronically is software. The storage devices and display devices are hardware.
The terms software and hardware are used as both nouns and adjectives. For example, you can say: "The problem lies in the software," meaning that there is a problem with the program or data, not with the computer itself. You can also say: "It's a software problem."
The distinction between software and hardware is sometimes confusing because they are so integrally linked. Clearly, when you purchase a program, you are buying software. But to buy the software, you need to buy the disk (hardware) on which the software is recorded.
Software is often divided into two categories:

Systems software : Includes the operating system and all the utilities that enable the computer to function.

Applications software : Includes programs that do real work for users. For example, word processors, spreadsheets, and database management systems fall under the category of applications software

Saturday, December 3, 2011

what is computer virus?

A computer virus is a program or piece of code that is loaded onto your computer without your knowledge and runs against your wishes. Viruses can also replicate themselves. All computer viruses are man-made. A simple virus that can make a copy of itself over and over again is relatively easy to produce. Even such a simple virus is dangerous because it will quickly use all available memory and bring the system to a halt. An even more dangerous type of virus is one capable of transmitting itself across networks and bypassing security systems.

Thursday, September 8, 2011

COMPUTER AND TECHNOLOGIES

Information technology (IT) is the acquisition, processing, storage and dissemination of vocal, pictorial, textual and numerical information by a microelectronics-based combination Computer and telecommunication The term in its modern sense first appeared in a 1958 article published in the harved Business Review, in which authors Leavitt and Whisler commented that "the new technology does not yet have a single established name. We shall call it information technology (IT) Some of the modern and emerging fields of Information technology are next generation web technologies, bioinformatics, cloud computing, global information systems, large scale knowledgebase’s, etc. General information managing technology and spans wide variety of areas that include but are not limited to things such as processes, computer software, information systems, computer hardware, programming languages, and data constructs. In short, anything that renders data, information or perceived knowledge in any visual format whatsoever, via any multimedia distribution mechanism, is considered part of the IT domain. IT provides businesses with four sets of core services to help execute the business strategy: business process automation, providing information, connecting with customers, and productivity tools. IT professionals perform a variety of functions (IT Disciplines/Competencies) that ranges from installing applicationsto designing complex computer networks and information databases. A few of the duties that IT professionals perform may include data management, networking, engineering computer hardware, database and software design, as well as management and administration of entire systems. Information technology is starting to spread further than the conventional personal computer and network technologies, and more into integrations of other technologies such as the use of cell phones, televisions, automobiles, and more, which is increasing the demand for such jobs. In the recent past, the Accreditation Board for Engineering and Technology and the Association for Computing Machinery have collaborated to form accreditation and curriculum standards for degrees in Information Technology as a distinct field of study as compared to Computer Science and Information Systems today. SIGITE (Special Interest Group for IT Education) is the ACM working group for defining these standards. The Worldwide IT services revenue totaled $763 billion in 2009.

Friday, March 4, 2011

Computer and it's Function

A computers processing unit executes series of instructions that make it read, manipulate and then store data. Test and jump instructions allow to move within the program space and therefore to execute different instructions as a function of the current state of the machine or its environment.
The landscape of computer technology is forever changing, making a sound investment in your company’s IT department a difficult enterprise. You do not want to invest in technology that is bound to be obsolete in just a short time. You want equipment that you can count on to be a good fit with current trends in technology well into the future. This is where the expert technological support at TheStreamingTech can prove a benefit to your company . Whether it is infrastructure technology, or the ability to fit your infrastructure pieces together, making them work at peak performance, our technology support staff will have you well on the way to saving money.

Thursday, March 3, 2011

Computer are used in various field's

We are all familiar with what a computer is in a specific, contemporary sense. Personal computers are found in most aspects of daily life, and for some it is hard to even imagine a world without them. But the term computer means more than simply the Macs and PCs we are familiar with. A computer is, at its most basic, a machine which can take instructions, and perform computations based on those instructions

Computers range from the very small to the very large. Some are capable of doing millions of calculations in a single second, while others may take long periods of time to do even the most simple calculations. But theoretically, anything one computer is capable of doing, another will also be able to do. Given the right instructions, and sufficient memory, a computer found in a wristwatch should be able to accomplish anything a supercomputer can  although it might take thousands of years for the wristwatch to complete the operation.

Computer and technology

     The computer is one of the most powerful innovations in human history. With the use of computers, people are suddenly able to perform a staggering amount of computations at dazzling speeds. Information can be crunched, organized, and displayed in the blink of an eye. As technology continues to advance, the computer will no doubt become even more pervasive and in many cases, likely even less recognizable.
      Computer like this is often referred to as an embedded computer. An embedded computer is differentiated from a personal computer because it is essentially static in its function. While a personal computer, or some cellular telephones, or some personal organizers are able to have new software installed, and make use of a wide range of features, an embedded computer usually has only a few purposes, which are relatively fixed once the computer is manufactured.

Computer and technology

A
"computer" is commonly considered to be a physical device. However, one can create a computer program which describes how to run a different computer, i.e. "simulating a computer in a computer". Not only is this a constructive proof of the Church-Turing thesis, but is also extremely common in all modern computers. For example, some programming languages use something called an interpreter, which is a simulated computer built on top of the basic computer; this allows programmers to write code (computer input) in a different language than the one understood by the base computer (the alternative is to use a compiler). Additionally, virtual machines are simulated computers which virtually replicate a physical computer in software, and are very commonly used by IT. Virtual machines are also a common technique used to create emulators, such game console emulators.

Artificial intelligence

A computer will solve problems in exactly the way they are programmed to, without regard to efficiency nor alternative solutions nor possible shortcuts nor possible errors in the code.

How does Computer work's (generally Basic)

computers processing unit executes series of instructions that make it read, manipulate and then store data. Test and jump instructions allow to move within the program space and therefore to execute different instructions as a function of the current state of the machine or its environment.The computer can also respond to interrupts that make it execute specific sets of instructions and then return and continue what it was doing before the interruption.

Computer Defination

computer is an programmable machine designed to read and execute sequentially a list of instructions that make it perform arithmetical and logical operations on binary numbers. Conventionally a computer consists of some form of short or long term memory for data storage and a central processing unit, which functions as a control unit and contains the arithmetic logic unit. Peripherals (for example keyboard, mouse or graphics card) can be connected to allow a the computer to receive outside input and display output.