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CSCI1412 Lecture 12 Q & A

phones off (please). CSCI1412 Lecture 12 Q & A. Interfacing and I/O Peripherals Dr John Cowell. Q 1. Which of the following is NOT a true statement about PCIe PCIe can transit data in both directions at the same time. Physical PCIe slots may contain 1,2,4,8,16.32 lanes.

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CSCI1412 Lecture 12 Q & A

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  1. phones off(please) CSCI1412Lecture 12 Q & A Interfacing and I/O Peripherals Dr John Cowell

  2. Q 1 • Which of the following is NOT a true statement about PCIe • PCIe can transit data in both directions at the same time. • Physical PCIe slots may contain 1,2,4,8,16.32 lanes. • Transmitted data is interleaved. • NVIDIA’s SLI technology allows multiple graphics cards to be run in tandem. • Accelerated Graphics Port (AGP) is inherently faster than PCIe. CSCI1412-HW-4

  3. Q2 Which of the following is NOT a true statement about USB ports: • The maximum length of cable from hub to device is 5m • Up to 127 devices may be connected to a single hub. • Up to six tiers of hubs are permitted. • USB is able to send data in both directions at the same time. • USB 2.0 supports speeds of up to 480Mbits/sec CSCI1412-HW-4

  4. Q3 • Which of the following technologies would you use for marking multiple choice papers? • OMR • OCR • MICR • UPC • DSP CSCI1412-HW-4

  5. Q4 • Why are ‘speech to text’ applications not more widely used? • The software required is too complex. • The software is very expensive. • A decent typist can type faster and with more accuracy that he can speak, particularly in a noisy office. • The recognition rate is only 40% for untrained users. • Especially sensitive (and expensive) microphones are needed. CSCI1412-HW-4

  6. Answers: • Q1 – E • Q2 – D – data can only be sent in one direction at a time. • Q3 – A (Optical Mark Reader) • Q4 – C CSCI1412-HW-4

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