Subtitles of the Movie

I want to give you sample test questions on the processor ah, just to kind of give you a, ah, a jump start to kind of let you see what you can expect, and you can expect questions as, as short and to the point as this one. Which cache will the CPU check first? And this one should be fairly easy for you. Notice your choices. The L2 because it's larger. The level 2 cache a lot of times is larger, but that's not what the CPU's going to check first. The bus cache. There's not actually a bus cache, not, not called a bus cache, so that's, that's not true. Actually all these are in, in a, in their own way a bus cache. Ah, the L1 cache. That is the correct answer. It will always check the L1 first, and that one is usually nowadays ah, actually on the processor. And the L3 cache, if you remember, is that one that's only in high-end, really high horsepower PCs ah, server type applications. So, our correct answer there is going to be the L1 cache. Next question. Which processor was the first to use pipelining to increase speed and efficiency? Our choices are the Intel Celeron, the AMD Athlon, the Intel Pentium, and the Intel ah 8486. And of course, the correct answer there is the Intel Pentium. As far as the history of the processor goes, the Intel Pentium was probably the single largest event that happened in processor history. Now shareholders at Intel might disagree with me on that, but the marketing guys I'm sure will say their last processor was. But the um, the, the Pentium was a drastic change in architecture and thought and it really opened up possibilities. As a matter of fact, the processors in use today are still based on a lot of the um, the basic principles and functionalities of the ah original Pentium processor. So Intel Pentium is the correct answer there. One more here. Which process makes dual core processors appear to the operating system as two separate CPUs? And let's talk about these. First of all, the ah, the answer here is hyperthreading. Ah, hyperthreading is, is ah a, a trick where it took the individual threads and the way it's submitting them and deal with them. It just simply makes the ah processor appear in ah Windows as two processors. Now what's ah, interesting about that is that if you look in the Task Manager ah, it looks as though there are two processors in the machine. And so you'll notice I've opened up the Windows Task Manager on my machine and notice right here under CPU usage history. Here's a window and here's a window. Okay. And so, the processor that I have in this machine is an AMD Athlon 4600. It's a 64-bit processor and it's a dual core processor. So you'll notice that because of this hyperthreading it looks like there's two processors to my operating system. So anyway. It's kind of cool stuff. Anyway, ah pipelining does not make it like two processors. Pipelining is just simply collecting the commands, putting them in different orders, and sending more than one ah, piece of information through at a time. Ah, a clock multiplier, ah that's just what makes the processor run faster than the system clock, and then all of the above, obviously is not correct there. So the correct answer ah, on this one, of course, would be hyperthreading. So, there's just some sample test questions. Um, go through these, ah you'll, you'll kind of see what to, what to expect, and we'll have some more of these ah throughout the ah video series here.