Interfacing and I/O Peripherals Dr John Cowell phones off (please)

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Interfacing and I/O Peripherals Dr John Cowell phones off (please)

Q 1 Which of the following is NOT a true statement about PCIe a) PCIe can transit data in both directions at the same time. b) Physical PCIe slots may contain 1,2,4,8,16.32 lanes. c) Transmitted data is interleaved. d) NVIDIA’s SLI technology allows multiple graphics cards to be run in tandem. e) Accelerated Graphics Port (AGP) is inherently faster than PCIe. CSCI1412-HW-42

Q2 Which of the following is NOT a true statement about USB ports: a) The maximum length of cable from hub to device is 5m b) Up to 127 devices may be connected to a single hub. c) Up to six tiers of hubs are permitted. d) USB is able to send data in both directions at the same time. e) USB 2.0 supports speeds of up to 480Mbits/sec CSCI1412-HW-43

Q3 Which of the following technologies would you use for marking multiple choice papers? OMR OCR MICR UPC DSP CSCI1412-HW-44

Q4 Why are ‘speech to text’ applications not more widely used? a) The software required is too complex. b) The software is very expensive. c) A decent typist can type faster and with more accuracy that he can speak, particularly in a noisy office. d) The recognition rate is only 40% for untrained users. e) Especially sensitive (and expensive) microphones are needed. CSCI1412-HW-45

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-46

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