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with respect to serial communication define the half duplexhalf duplex transmission a channel of half duplex can send and receive but not at same
with respect to serial communication define the asynchronous communication asynchronous implies no synchronization and therefore does not require
with respect to serial communication define the baud rate the rate of data transfer into serial data communication is denoted in bps bits per second
explain daa instructiondaa the daa instruction follows the instruction adc or add to adjust the result in a bcd result the daa instruction performs
explain the cmp instructioncmp the comparison instruction is a subtraction which changes only the flag bits the destination operand certainly not
explain the neg instruction neg twos complement or arithmetic sign inversion neg the neg instruction twos complements a number that means that the
explain the test instructiontest the test instruction executes the and operation the difference is as the and instruction changes the destination
what are the blocks of the microprocessor depends systemthe blocks of the microprocessor depends system are the memory and io system the data
explain microprocessor development systemmicroprocessor development system computer systems consist of undergone many changes lately machines which
what is assemblerassembler an assembler or macro-assembler usually forms a part of the operating system this translates an assembly language program
define the term paging unitpaging unit the paging mechanism functions along with 4k - byte memory pages or along with a new extension obtainable to
explain branch prediction logic in pentiumbranch prediction logic in pentium the pentium microprocessor utilizes branch prediction logic to decrease
explain the operation of iret instruction what memory locations contain the vector for an int 34 instructionthe interrupt return iret instruction
what are the different modes in which 8255 programmable peripheral interface ppi can operate twenty four io lines in 38-bit port groups - a b and c
write a brief note on mmx technology mmx multimedia extensions technology adds 57 new types of instructions to the pentium - 4 microprocessors
explain in brief the functions of the clock generator chip 82848284 clock generatorthe 8284 is an ancillary element to the microprocessors without
compare memory mapped io with io mapped iomemory mapped io scheme in this type of scheme there is merely one address space these address space is
explain memory mapped io schemememory mapped io scheme in such scheme there is only one address space these address space is defined as all possible
what is 16-bit isa compare it with 8-bit isa busthe only difference among the 8 and 16-bit isa bus is that other connector is attached behind the
what is the purpose of carry c flag and zero z flagcarry flag conatins the carry after addition or borrow after subtraction this carry flag also
the interrupt vector table is always created in the first 1k area of the memory justify the statementwhile the cpu receives an interrupt type number
what are program-invisible registersthe local and global descriptor tables are determined into the memory system so as to access and give the address
what do you mean by external data bus external data bus a bus which connects a computer to the peripheral devices the microprocessor-8088 has 16-bit
what do you mean by internal data bus internal data bus a bus which operates only in the internal circuitry of the cpu communicating between the
what are the differences between colour graphics adapter and video graphics array graphics adaptersthe colour graphics adapter cga originally also