Explain paging in memory. When an interrupt is triggered, what event is automatically executed prior to servicing the interrupt? What are semantics in programming? What is data hiding? Who would use it? How did computers function before microprocessors?
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Everydesktopandlaptopcomputer in common use today contains amicroprocessoras its central processing unit. The microprocessor is thehardwarecomponent. To get its work done, the microprocessor executes a set of instructions known assoftware(seeHow Microprocessors Workfor details). You are probably very fam...
The Local APIC (Advanced Programmable Interrupt Controller) present in recent 80x86 microprocessors provide yet another time measuring device, and it is a device, similar to the PIT, which can issue one-shot or periodic interrupts. There are, however, a few differences: The APIC's timer counter...
Finally, something that does not take long writing about it. There is one(!) mention of the VMEST that I could find. It is a short snippet from a Serbo-Croatian computer magazine from January 1990: Also, there is an indirect mention of what could be a VMEST in the German “ST Compu...
How does a for loop work in python? (a) Explain JavaScript. (b) Give an example of code using this language. What is the effect of parentheses in C code? Explain. Explain how programmed I/O is different from interrupt driven I/O. What is polling? What is the concept of interrup...
Q1. What does an embedded system engineer do? The design, development, manufacturing, testing, and maintenance of embedded systems fall within the purview of embedded systems engineers. Frequently tested systems to rule out any problems and offered system-level assistance while collaborating with cross...
The address flip-flop also has inputs to load the instruction as the address, to load an address from the translation ROM, or to load an interrupt microcode handler address. The circuit sends the address bit (and inverted address bit) to the microcode ROM's address decoder. Schematic of a...
and dealers who wish to advise their customers--this book will provide the solution to all your hardware questions. Even beginners should not shy away as this book begins with an easy introduction to the subject area. Key highlights: l CPU's from the 8086/8088 to the Pentium III and Athlo...