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  • Question
  • Which hardware component controls serial port communications?


  • Options
  • A. ROM BIOS
  • B. CPU
  • C. DMA823
  • D. UART 16550
  • E. None of the above

  • Correct Answer
  • UART 16550 


  • More questions

    • 1. Your network contains NetWare 4.0 Servers. You have successfully installed Client Service for NetWare on Windows 2000 Professional computers, and Gateway Service for NetWare on Windows 2000 Server Computers. You recently added a new Windows 2000 Server computer to the network and installed Gateway Service for NetWare on it. However, the server is unable to connect to any NetWare servers. What should you do on the new Windows 2000 Server computer to resolve this problem?

    • Options
    • A. Enable NWLink NetBIOS
    • B. Configure the NWLink IPX/SPX/ NetBIOS Compatible Transport Protocol to use the correct Ethernet frame type
    • C. Install RIP routing for IPX
    • D. Install the SAP Agent
    • E. None of above.
    • Discuss
    • 2. A device is said to be _____ when it is accessible to, or under the control of, the processor

    • Options
    • A. people
    • B. icons
    • C. information system
    • D. on-line
    • E. None of the above
    • Discuss
    • 3. In LISP, the function returns the first element of a list Is

    • Options
    • A. set
    • B. car
    • C. first
    • D. second
    • E. None of the above
    • Discuss
    • 4. Which of the following commands can be used to get information about all users who are currently logged into the system?

    • Options
    • A. which
    • B. who
    • C. who am i
    • D. 1 /u
    • E. None of the above
    • Discuss
    • 5. If a calculation is embedded in a form

    • Options
    • A. the result of the calculations are stored with the form
    • B. the calculations are stored with the form
    • C. the result of the calculations are printed in report
    • D. All of the above
    • E. None of the above
    • Discuss
    • 6. An XOR gate recognizes only words with an _____ number of 1's.

    • Options
    • A. even
    • B. odd
    • C. different
    • D. All of the above
    • E. None of the above
    • Discuss
    • 7. An AI system developed by Daniel Bobrow to read and solve algebra word problems

    • Options
    • A. SHRDLU
    • B. SIMD
    • C. BACON
    • D. STUDENT
    • E. None of the above
    • Discuss
    • 8. Terminals are required for

    • Options
    • A. realtime, batch processing, and timesharing
    • B. realtime, timesharing, and distributed processing
    • C. realtime, distributed processing, and manager inquiry
    • D. realtime, timesharing, and message switching
    • E. None of the above
    • Discuss
    • 9. Which one of the following statements is true for the voltage in a parallel RC circuit?

    • Options
    • A. The voltage always has the same amplitude and phase for every part of the circuit
    • B. The total voltage is equal to the sum of the voltages across the resistance and capacitance
    • C. The total voltage leads the total current by less than 90 degree
    • D. The total voltage is less than the sum of the voltages across the resistance and capacitance
    • E. None of the above
    • Discuss
    • 10. The encoding method specified in the EIA-232 standard is _____.

    • Options
    • A. NRZ-I
    • B. NRZ-L
    • C. Manchester
    • D. Differential Manchester
    • Discuss


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