Accessibility is a general term used to describe the degree to which a product, device, service, or environment is accessible by as many people as possible. Accessibility can be viewed as the “ability to access” and possible benefit of some system or entity. Accessibility is often used to focus on people with disabilities and their right of access to entities, often through use of assistive technology.

Accessibility is not to be confused with usability which is used to describe the extent to which a product (e.g., device, service, environment) can be used by specified users to achieve specified goals with effectiveness, efficiency and satisfaction in a specified context of use.

Accessibility is strongly related to universal design when the approach involves “direct access”. This is about making things accessible to all people (whether they have a disability or not). An alternative is to provide “indirect access” by having the entity support the use of a person’s assistive technology to achieve access (e.g., screen readers).

Web Hosting|

What is the Definition of Computer Software?

The term “software” is not a recently conceived of word. In his 1935 essay, ‘Computable Numbers with an Application to the Entscheidungs Problem,’ Alan Turing first proposed and provided the foundation for most modern software. In 1958, the first use of the term software was used by John W. Tukey in an article in American Mathematical Monthly.

Today, the the term ‘computer software’ means written programs, rules, or codes, along with related documentation regarding the operation of a computer system that is stored in read/write memory. The “soft” part of software refers to the many products and technologies developed using different methods such as programming languages and scripting languages. The term ‘software’ is broader and can include different types of devices such as the operation systems of modern consumer devices such as automobiles, televisions, toasters, etc.

Computer software is the job descriptions of what a computer can perform. It cannot be physically touched. For instance, most computers come with software already installed. Software is also available on CD where the user inserts the disk into the hard drive and follows the installation instructions. As well, downloadable software is available on internet sites such as Microsoft. Computer software is basically a series of instructions that tells a computer how to do a particular job. For example, Microsoft Word is an example of computer software. As well, web page technologies such as HTML, PHP, ASP.NET, and XML are examples of computer software.

Computer software can be divided into two main categories: operating system software and application software.

Operating System (0/S): This system consists of the basic functions that computers perform. An example would be showing movement on a screen such as a mouse cursor was the user moves the mouse. Examples of operating systems include: windows vista, windows xp, Mac, Linux and Unix.

Application Software: These are applications that allow the computer to perform the job. Application software is used to accomplish precise tasks other than just running the computer system. This can include voice, play or record music, view videos, play video games–etc. Other examples of application software include permitting access to the internet and printing documents. Application software is the software that indirectly interacts with the computer.

System Software is the software that can directly interact with computer hardware. Examples include motherboard, CPU, keyboard, Mouse, printer–etc. System software is responsible for controlling, integrating, and managing the individual hardware components of a computer system.

Computer software is composed of machine language which is essentially groups of binary code giving processor instructions that are specific to an individual processor. It is normally written in high-level programming languages and then interpreted into machine language code. Software can also be written in assembly language which is a mnemonic representation of a machine language using a natural language alphabet.

The term computer software evolved from computational theories and formulas from pioneers in mathematics. It is easy to see how quickly technology evolved to the amazing and complex computations we see today.
intellectual property solicitor – Australian ip lawyers |compensation lawyers – Australian claims solicitors |gastric band & bypass surgery – medical negligence compensation claim solicitors |Retirement & residential nursing home elder abuse & neglect compensation claim solicitors |midwife medical negligence solicitors – obstetric injury compensation claims |Australian obstetrics & gynaecology negligence compensation claim solicitors & lawyers |Australian trip slip fall injury compensation claim solicitors |negligent financial advisers & consultants – negligence compensation claim solicitors |sports injury lawyers – no win no fee compensation claim solicitors |brain injury solicitor – Australian TBI compensation claim lawyers |brain haemorrhage compensation claim solicitors – Australian lawyers |Australian spine injury compensation claim solicitors and lawyers |car accident lawyers – injury compensation claims |personal injury lawyers & medical malpractice attorneys |mens health medical negligence lawyers – prostate testicles vasectomy circumcision compensation solicitors |cica claim solicitors – UK criminal injuries compensation claims |accident claim solicitor – injury compensation |Queensland medical negligence compensation claim solicitors – QLD clinical rights & complaints |UK medical negligence solicitor offers advice on no win no fee clinical compensation claims. |workcover compensation solicitors – workers lawyers in Victoria South Australia & ACT |defamation compensation solicitors – Australian lawyers for slander and libel claims |Cerebral palsy compensation claims – UK medical negligence solicitors |

cheap web host |Will Disputes and Probate Solicitor- Australian Legal Advice|Total and Permanent Disability Claim –  Australian TPD solicitors|Car Accident Compensation Claim Advice – Australian Lawyers|Asbestos Claim Solicitor – Australian Legal Advice|Income Protection Claim Advice- Australian Insurance Solicitors|Property Management Los Angeles|loans * 17.00 |

Examples of computer software are :

Application software
Application software, also known as applications, is computer software designed to help the user to perform singular or multiple related specific tasks. Examples include Enterprise software, Accounting software, Office suites, Graphics software and media players.

Application software is contrasted with system software and middleware, which manage and integrate a computer’s capabilities, but typically do not directly apply them in the performance of tasks that benefit the user. A simple, if imperfect analogy in the world of hardware would be the relationship of an electric light bulb (an application) to an electric power generation plant (a system). The power plant merely generates electricity, not itself of any real use until harnessed to an application like the electric light that performs a service that benefits the user.

Programming language

A programming language is an artificial language designed to express computations that can be performed by a machine, particularly a computer. Programming languages can be used to create programs that control the behavior of a machine, to express algorithms precisely, or as a mode of human communication.

Many programming languages have some form of written specification of their syntax (form) and semantics (meaning). Some languages are defined by a specification document. For example, the C programming language is specified by an ISO Standard. Other languages, such as Perl, have a dominant implementation that is used as a reference.

The earliest programming languages predate the invention of the computer, and were used to direct the behavior of machines such as Jacquard looms and player pianos. Thousands of different programming languages have been created, mainly in the computer field, with many more being created every year. Most programming languages describe computation in an imperative style, i.e., as a sequence of commands, although some languages, such as those that support functional programming or logic programming, use alternative forms of description.

system software

The computer BIOS and device firmware, which provide basic functionality to operate and control the hardware connected to or built into the computer.
he operating system (prominent examples being Microsoft Windows, Mac OS X and Linux), which allows the parts of a computer to work together by performing tasks like transferring data between memory and disks or rendering output onto a display device. It also provides a platform to run high-level system software and application software.
Utility software, which helps to analyze, configure, optimize and maintain the computer.

Device driver

In computing, a device driver or software driver is a computer program allowing higher-level computer programs to interact with a hardware device.

A driver typically communicates with the device through the computer bus or communications subsystem to which the hardware connects. When a calling program invokes a routine in the driver, the driver issues commands to the device. Once the device sends data back to the driver, the driver may invoke routines in the original calling program. Drivers are hardware-dependent and operating-system-specific. They usually provide the interrupt handling required for any necessary asynchronous time-dependent hardware interface.

Programming tool

A programming tool or software development tool is a program or application that software developers use to create, debug, maintain, or otherwise support other programs and applications. The term usually refers to relatively simple programs that can be combined together to accomplish a task, much as one might use multiple hand tools to fix a physical object.