20PU = 20mhz clock
10PU = 10mhz clock
note that these are the maximum clock speeds. voltage and settings will apply also. I believe most AVR's default to 1mhz until you have set the specified fuse setting.
It's nothing but the SAME
8255
difference between micro operation and microinstruction
One is more bite resistant.
Devices do not care with this difference. Humans do.
a microprocessor is a small unit with memory inside the system unit while a computer is the combination of a monitor and a system unit
None. A microprocessor is a control and datapath strung together with a bag of bits to manage IRQs communicating over some kind of system bus.The PowerPC 405 is a microprocessor.
The basic difference between the microprocessor and microcontroller is that we can interface a microcontroller directly means "for example we can directly connect a keyboard to microcontroller to any of its ports"....where as for microprocessor we can't interface directly...we require a circuit board since it requires ram,ic's.....etc.,! beyrojac mahinay
As far my knowledge goes the only difference i found in a thermal magnetic relase & microprocessor based was in a microprocessor based Circuit breaker we have a additional protection i.e. for Earth fault. Aparts that the range of fault setting in a microprocessor based circuit breaker is more than in a thermal magnetic trip unit.
It is depended on how many bits the processor can process simultaneous... Means 8 bit microprocessor can process 8 bit of data simultaneously... & also it has 8 line data bus.. to transfer the data between memory & IO devices.... In same way for 64 bit..
A thread is a sub process in other words one process can contain multiple threads.
Microcontroller = (microprocessor+memory+peripherals) on a single chip