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Man tries writing Christian book about Hiroshima bombing. Man ends up on an island to do an interview but ends up destroying most life on Earth so he switches religion. This book was a bit weird. It was really short but there were about 120 chapters, all a couple pages long. I liked it, but I wasn’t itching to keep on reading it if that makes sense. I enjoyed [[Slaughterhouse 5]]?? more but I might just be biased because that’s the one my Dad suggested.

What does this symbol represent in FSM?? A state. What does this symbol represent in FSM?? The start state. What does this symbol represnt in FSM?? The end or accept state. What does this symbol represent in FSM?? A transition. What does the language recognised by a FSM consist of?? All string accepted by the finite state machine. What is a finite state machine?? An abstract model of computation that is used to model logic.

What does the Efficient-market hypothesis state?? Asset prices reflect all available information. What is the implication of the Efficient-market hypothesis?? You shouldn’t expect to beat the market without a unique edge, except by chance. How did Warren Buffet beat the market?? By running simple formulas over stock prices. Why can you no longer use Warren Buffet’s method for beating the market?? The market became more efficient as everyone became aware of the edge. References Kindly Stop Saying the Efficient Market Hypothesis is Dead, The Deep Dish Backlinks [[Misc Notes]]N Metadata date: 2020-12-28 14:53 tags: - '@?

I can’t explain this well enough to put it into flashcards but thought it was cool: https://rationalwiki.org/wiki/Roko%27s_basilisk https://slate.com/technology/2014/07/rokos-basilisk-the-most-terrifying-thought-experiment-of-all-time.html https://www.lesswrong.com/tag/rokos-basilisk Backlinks [[Misc Notes]]N Metadata date: 2020-11-29 16:12 tags: - '@?rationality' - '@?public' - '@?safe-to-post-online' title: Roko's Basilisk

What is a summary of encryption?? A way of making sure data cannot be understood if you don’t possess the means to decrypt it. What is a Ceasar cipher?? A method of encryption where you shift the letters along by a consistent amount. What is a brute-force attack?? Where you attempt every possible key to decrypt ciphertext until one works. What is another name for a one-time pad?? A Vernam cipher What is another name for a Vernam cipher?

Why is compression needed?? Because data is constantly being moved around computer systems and networks so a smaller amount of data can be beneficial. What are the two types of comression?? Lossy Lossless What’s an example of a lossy image compression format?? JPG What’s an example of a lossy music compression format?? MP3 What is the definition of run length encoding?? A basic method of compression that summarises consecutive patterns of the same default.

What does MIDI stand for?? Musical Instrument Digital Interface What is the difference between a live recording and MIDI?? Midi is recording a synthesised sound. What is the advantage of MIDI?? Full sound signal doesn’t need to be transmitted, only instructions to play the sound. If vector graphics are the instructions to draw an image, MIDI is?? The instructions to make a sound. Backlinks [[Computing - Syllabus]]S Metadata date: 2020-10-15 11:30 tags: - '@?

What is the main difference between an analogue and digital signal?? Analogue signals are continuous while digital signals are discrete. In one sentence, how does a digital-to-analogue converter for sound work?? Sound is captured by a microphone which is sampled at regular intervals and these samples are converted to binary. The frequency at which samples of a sound are taken is called?? The sampling rate. When an analogue sound signal is being converted to digital, what value is sampled?

In one sentence, how does a camera work?? Approximating a real image by cutting it up into a grid using a light sensor. How is the grid of colour converted into binary in a camera?? Using an analogue-to-digital converter. What is a bitmap?? A grid of pixels. What’s another word for raster graphics?? Bitmap graphics. What is a common bitmap file type?? BMP JPG GIF PNG TIF What is special about a BMP file?

In summary, what are the three things a processor does?? Controls instructions Calculates instructions Executes instructions What is the ALU?? The Arithmetic-Logic Unit What is the CU?? The Control Unit How could you describe the ALU?? The problem solving part of the processor. What’s an example of the arithmetic operations?? Add Subtract Multiply Divide What’s an example of logical operations?? AND OR NOT XOR What’s an example of a shift operation?

In summary, what is volumes of revolutions?? Finding volumes by integrating. Rotating the line $y = x$ around the $x$ axis creates what shape?? A cone. If you have a function $f(x)$ and an interval $[a,b]$, how can you find the volume of revolution around the $x$-axis?? $$ \int^b_a \pi f(x)^2 dx $$ If normal integration is an infinite summation of rectangles, then volumes of revolutions is an infinite summation of?? Cylinders. If you have a cylinder with radius $y$ and width $dx$, then what is the formula for the volume of that cylinder?

What is the binary number $01011011$ in hexadecimal?? $5B$. What is the nibble $0010$ in hexadecimal?? $2$. What is the nibble $1010$ in hexadecimal?? $A$. What is signed binary?? Where the most significant bit indicated whether the number is positive. In signed binary, what does a $1$ sign bit represent?? The number is negative. In signed binary, what does a $0$ sign bit represent?? The number is positive. What is $10010100$ signing bit?? $1$. Is the signed binary number $10010100$ positive or negative?