CS609-Midterm
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PPI stands for
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File system used in CD’s is_______ file system
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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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DSR stands for __________ .
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The________ function uses the COM port number to receive a byte from the COM port using BIOS services.
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------------ whenever receive indicates the start of communication ……….. whenever receive indicates the end of communication
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In order to produce the sound from PC internal Speaker we have to load the___bit divisor value at the ___port.
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The PPI acts as an interface between the CPU and a parallel ________ .
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Tail of keyboard should get to get the start of buffer.
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DCE is _____________
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The Function of I/O controller is to provide ____________.
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Standard PC operates in two modes in terms of memory which are
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____ No. of bytes are used to store the character in the keyboard buffer.
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The following command “outportb (0x61,inportb(0x61) & 0xFC);” will
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File can be______ viewed as collection of clusters or blocks.
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The amount of memory above conventional memory (extended memory) can be determined using the service _______.
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Bit number _______ of coprocessor control word is the Interrupt Enable Flag.
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A single interrupt controller can arbitrate among ____ different devices.
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Hardware Interrupts are __________.
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Maximum number of interrupts in a standard PC is
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------------ is used to read date from RTC
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_____ bit is cleared to indicate the low nibble is being sent.
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In self test mode the output of the UART is routed to its input.
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If printer is _____ then printer sends back the ACK signal to the printer interface
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Display device (Monitor) performs _________ I/O.
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------------ is used to set time from RTC
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__________is used to control the printer via the BIOS
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The bit number _______ of the coprocessor control word is the interrupt enable flag.
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Total No. of bytes that can be stored in Keyboard Buffer is____.
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Register can be used to divide frequency is _________
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The keyboard input character scan code is received at ___ port.
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The BIOS interrupt 0x1AH can be used to configure real time clock
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____whenever received indicates the start of communication and ______ whenever received indicates a temporary pause in the communication.
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What will be the value of DL register when we are accessing C drive using undocumented service 21H/32H?
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Int 14H __________ can be used to set the line parameter of the UART or COM port.
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PPI interconnection _______ bits is cleared to indicate low nibble is being sent.
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The output on the monitor is controlled by a controller called __________within the PC.
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Int 14H __________ can be used to receive a byte.
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Communication between keyboard and keyboard controller is __________.
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If CPUID instruction is not present then the processor can be a
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The keyboard makes use of interrupt number _______ for its input operations.
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Int 14H____________ can be used to send a byte
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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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To distinguish 486 with Pentium CPUID Test is used.
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LPTs can be swapped.
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On the execution of IRET instruction, number of bytes popped from stack is
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A software interrupt does not require EOI (End of interrupt).
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