Stephan has been assigned a task to lead a team to analyze volumes of financial data. stephan observes that his team members work for long hours. he wants to his team members to follow useful work habits, increase work efficiency, and avoid health issues. what should stephan advise his team to do? avoid taking breaks during work and work continuously. take periodic breaks and alternate between tasks. avoid sitting upright on chairs when experiencing physical fatigue. use cushions and small pillows below the computers to adjust their heights. close curtains, blinds, and overhead lights to reduce eye fatigue.

Explain briefly why you cannot expect to find a previous version of every file with which you work.

What do character formats do for your document's message? a.set the tone b.provide organization c.provide clarity d.set how texts align with documents

When making changes to optimize part of a processor, it is often the case that speeding up one type of instruction comes at the cost of slowing down something else. for example, if we put in a complicated fast floating-point unit, that takes space, and something might have to be moved farther away from the middle to accommodate it, adding an extra cycle in delay to reach that unit. the basic amdahl's law equation does not take into account this trade-off. a. if the new fast floating-point unit speeds up floating-point operations by, on average, 2ă—, and floating-point operations take 20% of the original program's execution time, what is the overall speedup (ignoring the penalty to any other instructions)? b. now assume that speeding up the floating-point unit slowed down data cache accesses, resulting in a 1.5ă— slowdown (or 2/3 speedup). data cache accesses consume 10% of the execution time. what is the overall speedup now? c. after implementing the new floating-point operations, what percentage of execution time is spent on floating-point operations? what percentage is spent on data cache accesses?