Programming in c on mac

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Imagine that you wake up one day and go shopping. The alarm clock that wakes you up is likely programmed in C. Then you use your microwave or coffee maker to make your breakfast. They are also embedded systems and therefore are probably programmed in C. You turn on your TV or radio while you eat your breakfast. Those are also embedded systems, powered by C. When you open your garage door with the remote control you are also using an embedded system that is most likely programmed in C. You get to the store, park your car and go to a vending machine to get a soda.

What language did they use to program this vending machine?

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Probably C. Then you buy something at the store. The cash register is also programmed in C. And when you pay with your credit card?

You guessed it: the credit card reader is, again, likely programmed in C. All those devices are embedded systems. That program must detect key presses and act accordingly, and also display information to the user. For example, the alarm clock must interact with the user, detecting what button the user is pressing and, sometimes, how long it is being pressed, and program the device accordingly, all while displaying to the user the relevant information.

The anti-lock brake system of the car, for example, must be able to detect sudden locking of the tires and act to release the pressure on the brakes for a small period of time, unlocking them, and thereby preventing uncontrolled skidding. All those calculations are done by a programmed embedded system. There are many programming languages, today, that allow developers to be more productive than with C for different kinds of projects.

There are higher level languages that provide much larger built-in libraries that simplify working with JSON, XML, UI, web pages, client requests, database connections, media manipulation, and so on. But despite that, there are plenty of reasons to believe that C programming will remain active for a long time.

In programming languages one size does not fit all. Here are some reasons that C is unbeatable, and almost mandatory, for certain applications. C is almost a portable assembly language. It is as close to the machine as possible while it is almost universally available for existing processor architectures. There is at least one C compiler for almost every existent architecture.

It is even used by compilers for other languages to communicate with the machine. For example, C is the intermediate language underlying Eiffel and Forth. This means that, instead of generating machine code for every architecture to be supported, compilers for those languages just generate intermediate C code, and the C compiler handles the machine code generation.

C has also become a lingua franca for communicating between developers. C is a great language for expressing common ideas in programming in a way that most people are comfortable with. Arbitrary memory address access and pointer arithmetic is an important feature that makes C a perfect fit for system programming operating systems and embedded systems. System applications must read and write to those custom memory locations to communicate with the world. In other words: write the value of variable byte to memory address 0x In this line, we perform a bitwise OR operation on the value at address 0x and the value 0x08 in binary, i.

In other words: we set bit 4 of the byte that is at address 0x We also declare that the value at address 0x is volatile. In this case, this bit is unset by the UART hardware just after we set it by software. If we did this inside a for loop, for example, without specifying that the value is volatile, the compiler might assume this value never changes after being set, and skip executing the command after the first loop. For example, the same source-code can be used to generate software that runs on Mac, Windows, and Linux.

Apple has said that Java reduces the Mac to the "least common denominator". That's why they support it less. Python is somewhat supported by Apple.

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There are third-party libraries that allow developers to develop applications using Python and Cocoa together, but these are not very well maintained, and Python on the Mac is most suitable for developing command-line utilities, or cross-platform scripts that aren't really very Mac-like. Most Mac users use Safari for their web browser. Safari uses the standards set by w3c.

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If you're developing websites using your Mac and using Safari, remember to test your webpages on other platforms and with other web browsers. You could call AppleScript a "native" language too, but it isn't really used to make commercial applications.

It was designed to be used by real power-users to automate their tasks. Although it is possible to use AppleScript to build Cocoa applications in XCode, this would be more for users who already know AppleScript and don't want to learn Objective-C. From Wikibooks, open books for an open world. Category : Book:Computer Programming. Namespaces Book Discussion.

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