Test today was ok. Scored a 73% with absolutely no studying. I really need to put more into this class, but again, my work schedule seems to be ramping up and may not let up. Of course, passing the A+ certification requires an 85% mark, so when the test comes, that's cramming time.
Hmm.. i asked the teacher in my Godfather voice, if we could do the test, then the lecture so i could take off and get home, skipping the lab section of the class today. We are covering hard drives and it appears we are moving so slowly through the chapter, the whole class is going to miss the lab and i will still sit through a lecture that lasts until regular class time is over.
Notes:
- PIO - Program Input Output - The CPU needs to get involved as soon as data is introduced to the system. The CPU slightly accesses the data to acknoledge that it's there, and puts it aside while it works on data received earlier.
- DMA - Direct Memory Access - The data introduced is directed to an I/O address in memory where it sits until the CPU is ready. The CPU doesn't need to stop any process to deal with new data until it's ready. Faster.
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