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A. A computer system does not respond to a key press. The service engineer replace the keyboard, but the problem remains unsolved. He concludes that the software (OS/ driver) is faulty, which is not true. Detect the problem. B. A program has 20% branch instructions. Assuming that all the branches are successful, calculate the speedup, […]

The DMA facility allows parallelism between CPU and I/O transfer with a limitation: the CPU cannot use the bus if an I/O transfer is in progress. As an improvement, a designer proposed dual port memory connected on two different buses: one for communication with CPU and the other for I/O transfer. Though this provides full

A processor development team always supports only the memory mapped I/O and never provides direct I/O for achieving cost reduction. Explain how the processor cost is increased by including support for direct I/O (isolated I/O). B. Synchronous communication does not add start/stop bits to each character unlike asynchronous communication. Still, it is not preferred in

Some users are not comfortable with typing on a keyboard. Suggest an alternate solution that does not require the keyboard. 1. Calculate the bandwidth of a monitor with a resolution of 720 × 350 and vertical scan rate of 50 Hz. 1. The data channel handles I/O operations by executing I/O commands, as discussed in

Write an investigation based on one of your selected topics of interest from the “Strange Case of Dr.Jekyll and Mr. Hyde”. The specific instructions for a standing assignment are below in the files. Please followthe instructions no matter what, as it determines how the final paper will actually look like Sample Solution The post Strange

A. Table 1 is a list of several stars from the Pleiades cluster and their colors (mB – mV, or equivalently B-V) and their apparent visual magnitudes (mV, or equivalently V). Since B-V is a color, and color is related to temperature through Wein’s law, the B-V axis is a measure of temperature. Since all

Anna Williams, CPA, was recently hired as assistant controller of GroChem Inc., which processes chemicals for use in fertilizers. Williams was selected for this position because of her past experience in chemical processing. During her first month on the job, Williams made a point of getting to know the people responsible for the plant operations

A program has 20% branch instructions. When it is run on a four-stage pipelined processor, it was observed that 60% of the branches were successful. Calculate the performance improvement in the pipelined processor. What is the maximum speedup possible if there are no branches?

In November, Stan Richart, the vice-president in charge of the Smartphone Technologies Division, saw that making the current year’s target profit for his division was going to be very difficult. Among other actions, he directed that discretionary expenditures be delayed until the beginning of the new year. On December 30, he was angered to discover

Project implementation is arguably the most exciting stage of the project management process. It is during project implementation that project plans begin to come to life and assumptions are able to be tested and measured in real-life scenarios. One of the outcomes of project implementation is a set of deliverables that typically includes a system