Computer organization and design : the hardware/software interface
Flips the input. A 1 becomes 0 , and a 0 becomes 1 . AND Gate: Outputs 1 only if all inputs are 1 . OR Gate: Outputs 1 if at least one input is 1 .
The Elements of Computing Systems: Building a Modern Computer from First Principles OR Gate: Outputs 1 if at least one input is 1
Humans are terrible at writing long sequences of binary numbers. We are excellent at writing high-level instructions like total = price + tax; . This is where the bridges the gap.
The heavy-lifter that performs mathematical calculations (addition, subtraction) and logical comparisons (AND, OR, NOT). This is where the bridges the gap
The Blueprint of Modern Computing: From Logic Gates to Compilers and Beyond
At the lowest level, computers run on electricity. Components utilize voltage levels to represent two distinct states: (high voltage, representing 1 ) and off (low voltage, representing 0 ). This system forms the basis of binary code. Transistors as Switches and STORE manipulate registers directly.
Commands like ADD , SUB , LOAD , and STORE manipulate registers directly.
Checks the tokens against grammar rules to build a syntax tree.
The Architecture of Modern Computing: From Logic Gates to Compilers