Software
Hardware
Program
CPU
ABC
EDBAC
EDSAC
ENIAC
Multiplication and division
Only subtraction
Only addition
Addition and subtraction
Application
Keyboard
Hard disk
ROM
RAM
Offic management
Scientific purpose
Earthquake analysis
Business purpose
Internal circuit
Internal computer
Integrated computer
Integrated circuit
Logarithmic instruction
Combinational operation
Data flow
Logical operation
Instruction
Input
Information
URL
LUR
LRU
HTML