Notes
Hardware-the physical,tangible parts of a computer keyboard,monitor,disk,wires,chips,ect.
Software-programs and data.a program is a series of instructions
CPU-central processing unit its thhe main memory
Input/out put devies-monitoer screen keyboard mouse touch screen
Secondary memory devies-they provide long term storage
Analog-continuous in dirct proportion the data represented
Digital-the information is broken down into pieces and each piece is represented separately
Digital information-computers store all information digitally computers number everything that gose though the computer
Binary numbers-once information has been digitezed it is represented and stroded in memory using the binary number system
Memory-main memory is volatile.scondary memory devices are nonvolatile
RAM-random access memory