By combining multiple transistors, engineers build . These are physical components that implement basic Boolean algebra functions. The three primary logic gates are: AND Gate : Outputs 1 only if all inputs are 1 . OR Gate : Outputs 1 if at least one input is 1 .
The (Not-AND) and NOR (Not-OR) gates are called universal gates. You can build any other type of logic gate, and therefore an entire computer, using only NAND or only NOR gates. This simplifies physical manufacturing. 2. Building Complexity: Digital Circuits
The simplest is the Half Adder, which adds two binary digits. The Full Adder accepts a carry-in bit, allowing computers to chain adders together to sum massive numbers. By combining multiple transistors, engineers build
A standard processor architecture contains several critical sub-systems:
Processors only understand machine language—strings of raw binary 0 s and 1 s. Writing software in binary or assembly language is slow, error-prone, and highly specific to one specific type of processor hardware. To bridge this gap, humans use high-level programming languages (like C++, Java, or Rust), and rely on to translate them. What is a Compiler? OR Gate : Outputs 1 if at least one input is 1
The Full Adders are built from interconnected (AND, OR, XOR).
Dominant in desktops, laptops, and servers (Intel and AMD). This simplifies physical manufacturing
The heavy-lifter that performs mathematical calculations (addition, subtraction) and logical comparisons (AND, OR, NOT).
: The guide describes using sequential circuits to model a full-fledged processor, often using the ARM architecture or Raspberry Pi as practical examples.
