lesson one- digital logic design Flashcards
digital logic design
creating circuits using logic gates to perform calculations and make decisions using digital signals-0s and 1s
logic gates are responsible for
transforming input signals into output signals based on predefined logical rules
hat laid the foundation for logic operations?
back in the19th century, the telegraph and boolean algebra laid the foundation for logic operations
What happened in the mid-20th century with digital computers?
electronic digital computers emerged, utilizing digital logic principles for calculations and information processing
how did the invention of the transistor affect circuits?
it shrunk them and paves the way for microprocessors and continued miniaturization
what if the first known calculating machine used for counting
ABACUS in 2500 BC
napiers bones
invented by john napiers of scotland
in 1617
used for addition, subtraction, multiplication, and division
numbers were printed on these rods
pascals calculator
invented by french scientist blaise pascal
its an adding machine
it represents the position of digit with the help of gears in it
leibniz calculator
invented by german mathematics gottfried leibniz
he modified the pascal calculator
it can perform various calculations based on multiplication and division
analytical engine
invtented by english scientist charles babbage
features are still used in todays computer language
first generation (vacuum tubes)
1940-1956
computers of the first generation used vacuum tubes as the basic components for memory and circuitry for CPU
they produced a lot of heat and were used to fuse frequently
therefore they were very expensive
third generation (integrated circuit)
1964-1971
first computer where users interacted using keyboards and monitors which interfaced with an operating system
fifth generation (AI)
2010-now
still in development
some tech is still beginning to emerge and be used like voice recognition and understand natural language
why is it important to know logic design?
- computer architecture: essential for designing components of a computer system, such as CPU
Communication systems: DLD plays a vital role in the design and implementation of communication systems like routers, switches, and modems
Signal processing: DLD is used in various signal processing applications like video processing, image recognition, and data compression
embedded systems: they are computer systems designed for specific tasks and rely on logic design to control and interact with external devices
Control systems: they are used in the design on control systems, which are used to regulate and automate various processes and machines
what is a number system?
a system of writing or representing numbers using digits or symbols in a consistent manner
it defines a set of values to represent a quantity and allows us to perform arithmetic operations on them
