How to link a microcontroller with a pc using usb or serial port for sendng program from pc to microcontroller?

how can i connect microcontroller with a computer using usb or serial port for sending programs from pc to microcontroller.

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WHICH microcontroller ?
prosi09 (author)  steveastrouk8 years ago
ATMEL AT27C512R 90JC 0046
That's not a microcontroller, that's an EPROM !
prosi09 (author)  steveastrouk8 years ago
Is there any project that a EPROM is needed ?
Not these days I don't think. Most microcontrollers can be in-system-programmed or in circuit programmed, or use FLASH not UVEprom
prosi09 (author)  steveastrouk8 years ago
Thanks for your help, another thing can you tell me where can i get a good cad/cam software for free ?
You can get a free version of the excellent Alibre system from http://www.Alibre.com

Steve