CS609-Midterm
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NMI Stand for
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BIOS support _____________UARTS as COM ports.
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If we use keep (0, 1000) in a TSR program, the memory allocated to it is
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_________ used to determine the amount of conventional memory interfaced with the processor in kilobytes.
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DTE is ___________
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DTE is ____________.
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_____ bit is cleared to indicate the low nibble is being sent.
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The interval timer can operate in _______ modes.
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Int 14H __________ can be used to set the line parameter of the UART or COM port.
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______ is Disk interrupt.
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Only ________ ports are important from programming point of view.
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PPI stands for
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In self test mode the output of the UART is routed to its input.
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Control information in files is maintained using
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If printer is _____ then printer sends back the ACK signal to the printer interface
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Maximum number of interrupts in a standard PC is
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The Function of I/O controller is to provide ____________.
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Operating system name contains ____ bytes in boot block.
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To access the block within cluster using BIOS services the cluster number should be converted into _____.
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There are two main types of interrupts namely _________________.
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Each paragraph in keep function is ____ bytes in size.
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Int 14H______ can be used to set the line parameter of the UART or COM port
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Interrupt ______ is used to get or set the time.
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DSR stands for __________ .
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On the execution of IRET instruction, number of bytes popped from stack is
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The keyboard input character scan code is received at ___ port.
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In case of synchronous communication a timing signal is required to identify the start and end of a bit.
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The bit ______ of Line control register in UART, if cleared will indicate that DLL is the data register.
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The microprocessor package has many signals for data. Below are some in Correct priority order (Higher to Lower).
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The PPI acts as an interface between the CPU and a parallel ________ .
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Total No. of bytes that can be stored in Keyboard Buffer is____.
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PPI is used to perform parallel communication
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Hardware Interrupts are __________.
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The ________function initialize the COM port whose number is passed as parameter using BIOS services.
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There are two type of communication synchronous and Anti Synchronous
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If we want to produce the grave voice from speaker phone then we have to load the ____ divisor values at Port ____.
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By cascading two DMAs ____ bits can be transferred.
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The ____________ function simply enables the self test facility within the modem control register
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------------ is used to set time from RTC
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DCE is _____________
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The output on the monitor is controlled by a controller called __________within the PC.
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Standard PC operates in two modes in terms of memory which are
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A software interrupt does not require EOI (End of interrupt).
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------------ is used to read time from RTC
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DCE stands for __________.
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Software based flow control make use of -------- control characters
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The -------- function receive a byte and COM port number is passed as parameter using BIOS service
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We have set the bit No. 7 of IMR(Interrupt Mask Register) to unmask the Interrupt so that interrupt _____ can occur at ____ line.
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Communication between keyboard and keyboard controller is __________.
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