An embedded system is a computer system with a dedicated function within a larger mechanical or electrical system, often with real-time computing constraints.

A microcontroller has all or a large portion of these elements worked into a solitary chip, so it needn’t bother with a motherboard and numerous parts, LEDs for instance, can be associated straightforwardly to the AVR. AVR microntrollers come in various packages,some intended for through-gap mounting and some surface mount. AVRs are accessible with 8-pins to 100-pins, despite the fact that anything 64-stick or over is surface mount as it were. A great many people begin with a DIL (Dual In Line) 28-stick chip like the ATmega328 or the 40-stick ATmega16 or ATmega32.

A geosynchronous satellite is a satellite in geosynchronous circle, with an orbital period the same as the Earth’s pivot time frame. Such a satellite comes back to a similar position in the sky after each sidereal day, and through the span of a day follows out a way in the sky that is normally some type of analemma.

Consuming a chip is likewise called Programming however since we allude to composing a program as “programming,” we can consider consuming a chip as “DOWNLOADING, DUMPING or BURNING.” The microcontroller we are utilizing as a part of this venture (PIC16F84) can be customized and re-modified up to 1,000 times and this makes it perfect for testing.

An embedded system is a computer system with a dedicated function within a larger mechanical or electrical system, often with real-time computing constraints. It is embedded as part of a complete device often including hardware and mechanical parts. Embedded systems control many devices in common use today.

User interface
Processors in embedded systems
Peripherals
Tools
Tracing
Reliability.

A real-time operating system (RTOS) is an operating system (OS) intended to serve real-time applications that process data as it comes in, typically without buffering delays. Processing time requirements (including any OS delay) are measured in tenths of seconds or shorter increments of time.

•  Direct memory access is mainly used to overcome the disadvantages of interrupt and progam controlled I/O.
• DMA modules usually take the control over from the processor and perform the memory operations and this is mainly because to counteract the mismatch in the processing speeds of I/O units and the procesor. This is comparatively faster.

 Macros are normally used whenever a set of instructions/tasks have to be repeatedly performed. They are small programs to carryout some predefined actions.