Start Discovering Solved Questions and Your Course Assignments
TextBooks Included
Active Tutors
Asked Questions
Answered Questions
define cache memorya special very high speed memory known as a cache is sometimes used to increase the speed of processing by making current programs
define main memory and auxiliary memorythe memory unit that communicates directly with the cpu is known as main memory ramdevices that give backup
define protocolit is a set of rules that are followed by interconnecting computers and terminals to make sure the orderly transfer of
define modema modem changes digital signals into audio tones to be transmitted over telephone lines and also changes audio tones from the lines in
define dmathe transfer of data among a fast storage device such as magnetic disk and memory if often limited by the speed of the cpu removing the cpu
define polling a polling process is used to recognize the highest priority source by software means in this process there is one common branch
what is priority interruptit is a system that establishes a priority over the several resources to determined which condition are to be serviced
define programmed ioit is the result of input and output instructions written in the computer program every data item transfer is initiated by an
what start bit and stop bitthe first bit known as the start bit is always a zero and it is used to show the beginning of the characterthe last bit is
what is asynchronous transmissionan asynchronous transmission technique used in many interactive terminals employ special bits with this method each
what is synchronous transmissionin synchronous transmission the two units share a common frequency and bits are transmitted continuously at the rate
what is time out mechanismif one unit is faulty the data transfer will not be done such an error can be detected using time out mechanism which makes
what is the disadvantage of strobe methodthe drawbacks of strobe method are that the source unit that show the transfer has no way of knowing
define handshakinghandshaking is a method commonly used to accompany ever data item being transfer with the control signal that show the presence of
what is strobeasynchronous data are transfer among two independent unit needs that control signals to be transmitted among the communicating units to
what is referred as memory mapped iothe case in computers that employ only set of read and write signals and do not differentiate between memory and
what is the use of isolated io configuration in isolated io configuration the cpu has distinct input and output instructions and each of these
what is the purpose of iopthe purpose of iop is to given an independent path way for transfer of information among external and internal
what is the use of status command data output command and data input commanda status command is used to test a variety of status conditions in the
explain about magnetic tape a they are mostly used for keeping files of data b it is one of the cheapest and slowest methods
define input-output interfaceio interface gives a method for transferring information among internal storage and external io
define peripheraldevices that are under the direct control of computer are said to be linked online these devices are intended to read information
define restoring methodthe hardware method just explained is called the restoring method the reason for this name is that the partial reminder is
what are the steps in multiplication algorithm check for zeros multiply mantissas add the exponents normalize the
what is divide overflow the division operation might result in a quotient with an overflow overflow happens when the length of the registers is