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- A computer programmer, sometimes called more recently a coder (especially in more informal contexts), is a
- person who creates computer software. The term computer programmer can refer to a specialist in one area of
- computers, or to a generalist who writes code for many kinds of software.
- A programmer's most oft-used computer language (e.g., Assembly, COBOL, C, C++, C#, JavaScript, Lisp, Python) may
- be prefixed to the term programmer. Some who work with web programming languages also prefix their titles with
- web. programmer gaurav
- A range of occupations that involve programming also often require a range of other, similar skills, for
- example: (software) developer, web developer, mobile applications developer, embedded firmware developer,
- software engineer, computer scientist, game programmer, game developer and software analyst. The use of the term
- programmer as applied to these positions is sometimes considered an insulting simplification or even derogatory.
- British countess and mathematician Ada Lovelace is often considered to be the first computer programmer, as she
- was the first to publish part of a program (specifically an algorithm) intended for implementation on Charles
- Babbage's analytical engine, in October 1842. The algorithm was used to calculate Bernoulli numbers.[7] Because
- Babbage's machine was never completed as a functioning standard in Lovelace's time, she unfortunately never had
- the opportunity to see the algorithm in action.
- The ENIAC programming team, consisting of Kay McNulty, Betty Jennings, Betty Snyder, Marlyn Wescoff, Fran Bilas
- and Ruth Lichterman were the first regularly working programmers.[8][9] International Programmers' Day is
- celebrated annually on 7 January.[10] In 2009, the government of Russia decreed a professional annual holiday
- known as Programmers' Day to be celebrated on 13 September (12 September in leap years). It had already been an
- unofficial holiday before that in many countries.
- The word software was used as early as 1953, but did not regularly appear in print until the 1960s.[11] Before
- this time, computers were programmed either by customers or the few commercial computer manufacturers of the
- time, such as UNIVAC and IBM. The first company founded to specifically provide software products and services
- was the Computer Usage Company, in 1955.[12]
- The software industry expanded in the early 1960s, almost immediately after computers were first sold in
- mass-produced quantities. Universities, governments and businesses created a demand for software. Many of these
- programs were written in-house by full-time staff programmers; some were distributed freely between users of a
- particular machine for no charge. And others were developed on a commercial basis. Other firms, such as Computer
- Sciences Corporation (founded in 1959) also started to grow. The computer/hardware manufacturers soon started
- bundling operating systems, system software and programming environments with their machines.[citation needed]
- The industry expanded greatly with the rise of the personal computer ("PC") in the mid-1970s, which brought
- computing to the average office worker. In the following years the PC also helped create a constantly-growing
- market for games, applications and utilities software. CP/M, later replaced by DOS, Microsoft's Windows popular
- operating system of the time.[13] portfolio programmer gaurav
- In the early years of the 21st century, another successful business model has arisen for hosted software, called
- software-as-a-service, or SaaS. From the point of view of producers of some proprietary software, SaaS reduces
- the concerns about unauthorized copying, since it can only be accessed through the Web, and by definition, no
- client software is loaded onto the end user's PC. SaaS is typically run out of the cloud.
- Computer programmers write, test, debug, and maintain the detailed instructions, called computer programs, that
- computers must follow to perform their functions. Programmers also conceive, design, and test logical structures
- for solving problems by computer. Many technical innovations in programming — advanced computing technologies
- and sophisticated new languages and programming tools — have redefined the role of a programmer and elevated
- much of the programming work done today. Job titles and descriptions may vary, depending on the organization.
- Programmers work in many settings, including corporate information technology ("IT") departments, big software
- companies, small service firms and government entities of all sizes. Many professional programmers also work for
- consulting companies at client sites as contractors. Licensing is not typically required to work as a
- programmer, although professional certifications are commonly held by programmers. Programming is widely
- considered a profession (although some[who?] authorities disagree on the grounds that only careers with legal
- licensing requirements count as a profession).
- Programmers' work varies widely depending on the type of business for which they are writing programs. For
- example, the instructions involved in updating financial records are very different from those required to
- duplicate conditions on an aircraft for pilots training in a flight simulator. Simple programs can be written in
- a few hours, more complex ones may require more than a year of work, while others are never considered
- 'complete' but rather are continuously improved as long as they stay in use. In most cases, several programmers
- work together as a team under a senior programmer's supervision. portfolio
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- Programmers write programs according to the specifications determined primarily by more senior programmers and
- by systems analysts. After the design process is complete, it is the job of the programmer to convert that
- design into a logical series of instructions that the computer can follow. The programmer codes these
- instructions in one of many programming languages. Different programming languages are used depending on the
- purpose of the program. COBOL, for example, is commonly used for business applications that typically run on
- mainframe and midrange computers, whereas Fortran is used in science and engineering. C++ and Python are widely
- used for both scientific and business applications. Java, C#, JS and PHP are popular programming languages for
- Web and business applications. Programmers generally know more than one programming language and, because many
- languages are similar, they often can learn new languages relatively easily. In practice, programmers often are
- referred to by the language they know, e.g. as Java programmers, or by the type of function they perform or
- environment in which they work: for example, database programmers, mainframe programmers, or Web developers.
- When making changes to the source code that programs are made up of, programmers need to make other programmers
- aware of the task that the routine is to perform. They do this by inserting comments in the source code so that
- others can understand the program more easily and by documenting their code. To save work, programmers often use
- libraries of basic code that can be modified or customized for a specific application. This approach yields more
- reliable and consistent programs and increases programmers' productivity by eliminating some routine steps.
- Testing and debugging
- Programmers test a program by running it and looking for bugs (errors). As they are identified, the programmer
- usually makes the appropriate corrections, then rechecks the program until an acceptably low level and severity
- of bugs remain. This process is called testing and debugging. These are important parts of every programmer's
- job. Programmers may continue to fix these problems throughout the life of a program. Updating, repairing,
- modifying, and expanding existing programs is sometimes called maintenance programming. Programmers may
- contribute to user guides and online help, or they may work with technical writers to do such work.
- Application versus system programming
- Computer programmers often are grouped into two broad types: application programmers and systems programmers.
- Application programmers write programs to handle a specific job, such as a program to track inventory within an
- organization. They also may revise existing packaged software or customize generic applications which are
- frequently purchased from independent software vendors. Systems programmers, in contrast, write programs to
- maintain and control computer systems software, such as operating systems and database management systems. These
- workers make changes in the instructions that determine how the network, workstations, and CPU of the system
- handle the various jobs they have been given and how they communicate with peripheral equipment such as printers
- and disk drives. programmer gaurav
- Types of software portfolio
- Programmers in software development companies may work directly with experts from various fields to create
- software – either programs designed for specific clients or packaged software for general use – ranging from
- video games to educational software to programs for desktop publishing and financial planning. Programming of
- packaged software constitutes one of the most rapidly growing segments of the computer services industry. Some
- companies or organizations – even small ones – have set up their own IT team to ensure the design and
- development of in-house software to answer to very specific needs from their internal end-users, especially when
- existing software are not suitable or too expensive. This is for example the case in research
- laboratories.[citation needed]
- In some organizations, particularly small ones, people commonly known as programmer analysts are responsible for
- both the systems analysis and the actual programming work. The transition from a mainframe environment to one
- that is based primarily on personal computers (PCs) has blurred the once rigid distinction between the
- programmer and the user. Increasingly, adept end users are taking over many of the tasks previously performed by
- programmers. For example, the growing use of packaged software, such as spreadsheet and database management
- software packages, allows users to write simple programs to access data and perform calculations.[citation
- needed] programmer gaurav
- In addition, the rise of the Internet has made web development a huge part of the programming field. Currently
- more software applications are web applications that can be used by anyone with a web browser.[citation needed]
- Examples of such applications include the Google search service, the Outlook.com e-mail service, and the Flickr
- photo-sharing service. programmer gaurav
- Programming editors, also known as source code editors, are text editors that are specifically designed for
- programmers or developers for writing the source code of an application or a program. Most of these editors
- include features useful for programmers, which may include color syntax highlighting, auto indentation,
- auto-complete, bracket matching, syntax check, and allows plug-ins. These features aid the users during coding,
- debugging and testing.[17] portfolio programmer gaurav
- Programming is the process of creating a set of instructions that tell a computer how to perform a task.
- Programming can be done using a variety of computer "languages," such as SQL, Java, Python, and C++.
-