COMP 273 Lecture Notes - Lecture 9: And Gate, Binary Code, Eeprom

• School: McGill University
• Department: Computer Science (Sci)
• Course: COMP 273
• Professor: Joseph Vybihal

Document Summary

Dram: dynamic -- needs to be refreshed. Used to store frequently accessed info from ram. Uni-directional, from cache1 to cpu /// from cpu to cache2. A series of instruction sized memory registers in an assembly line. The figure below shows how the decimal digits 0-9 might appear on a seven-segment display device. Design logic circuits to generate the enable signals that cause the segments to be lit or darkened, given a 4-bit binary representation of the decimal digit (binary-coded decimal or bcd code) to be displayed as input. Aka making the display for a calculator . Somewhere there is a register that contains many binary bits. We know that a 1" is 5 volts and a 0" is 2 volts, which means that there is always power going through. Each light-up part of the numbers is similar to a light bulb: Left: template/possibilities of all little light bulbs" to show all numbers.