In a computer system, memory operations currently take up 30% of execution time. A new gadget called a cache (i. e. an L1 cache) speeds-up 80% of the memory operations by a factor of 4. (a) [2] What is the speed-up due to the cache? (b) [3] A second new gadget called an L2 cache speeds-up half the remaining 20% of the memory operations by a factor of 2. What is the total speed-up with the L1 and L2 cache together? Note: It is useful to draw pictures to solve this part of the problem

My favorite is "be concise."have you ever received an email and had to read a page full of information? by the time you finished reading it, you had to re-read it? i have even hit "reply" so that i could break it down into separate paragraphs and send it back to myself.what is concise? get to the point, fast. when opening an email like this, some will close it or print it to read later.i learned to use the subject line to prepare the reader for content. such as, "need on (blank), " "info only re: (blank)," "request input on (blank)," "read before (blank) meeting." these are just some.if you are asking for something, make that your first sentence. follow this by who, what, when, where, and how. use these, as necessary. example; (1) who (who needs it and or who does it), (2) what (specific description of what is needed), (3) when (specific, i need this by 8: 00 am monday or i need this by 10: 00 am today), (4) where (does it have to be printed and taken to someone, maybe the place of the meeting), (5) how (i need it scanned or faxed back to me at this email address, provide me with a hard copy).do not send yet. re-read it. did some spell check change a word? maybe let someone else read it for understanding. you want to avoid multiple emails asking for clarification. if important, put a read receipt on it. you will know it was opened, not necessarily read.end with a you.

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Iposit c as the correct answerbeing a waitress and managing a restaurant can be different jobs in the same care  this is because the difference between the two is attitude. they can be both jobs or careers, if the attitude of the job-doer is that way. on e can be a manger yet sees it a s a job. the job of waitress can also have an impact on future job prospects thus is important for the career line.