The course is built on three pillars. Virtualization gives each program the illusion of having the machine to itself. Concurrency keeps results correct when programs really do run alongside one another. Persistence keeps data available after a program ends or the power goes out. Three things go wrong on one machine. (i) Two programs write to the same file and the lines come out mixed together. (ii) A program reads one of its own addresses and finds another program’s data there. (iii) A file written yesterday is missing after a restart. Which pillar does each belong to?

In 1998 the CIH virus running on Windows 95/98 could reach the boot sector of a disk — the part holding the code a machine needs in order to start — and destroy it. The lecture used this as the protection problem: what if a malicious program could bypass the OS? What made that damage possible, and what prevents it on a modern machine?

The bare-metal Hello World had to know the output device’s exact hardware addresses and handle every hardware detail itself, in twenty-five-plus lines. Under an operating system the same greeting takes one line. Grant that the library only ever has to serve this exact machine, so no question of portability arises. Why can that one line still not be the bare-metal code packaged into a library that programs call?

The endometrium is at its greatest thickness during which of the following phases?

When the uterine body is bent posteriorly at the isthmus so that the fundus of the uterus extends posteriorly, it is said to be:

A patient is postoperative day one following an emergent pericardial window for a hemorrhagic pericardial effusion. The nurse enters the room to find the patient increasingly restless and short of breath. Blood pressure has dropped from 118/76 an hour ago to 82/60 now, with a narrowed pulse pressure. Heart rate has climbed to 128, and heart sounds are notably muffled and distant on auscultation compared to the prior assessment. The nurse notes the neck veins are visibly distended, and while manually checking blood pressure, observes the systolic reading drops by nearly 14 mmHg during inspiration. The mediastinal chest tube, which had been draining briskly, has put out only 5 mL over the last two hours. The nurse recognizes that this patient is exhibiting the classic findings of Beck’s triad, which are: [BLANK-1]

See the picture below. Imagine this is your own family, and suppose you are the young woman in the center. State how many people are in your family including you with using the expressions specific to Japanese that you learnt in Chapter 10.

Listen to the audio and answer the question using ～たり～たりforms. Click the recording icon and  save your video recording . Make sure to click save after recording otherwise it will not be saved.    

This is a free conversation.  Listen to the audio and answer the question as much as you can with all expressions you learned in this semester. Click the recording icon and  save your video recording . Make sure to click save after recording otherwise it will not be saved.    

Listen to the audio and answer the question.  Use te-form and adequate expressions. Click the recording icon and  save your video recording . Make sure to click save after recording otherwise it will not be saved.