Cues -  hardware is desighed to store manipulate information based on microscopic on/off switches
 Hardware- a computer , keyboard, monitor
Software- program and data
CPU and Main memory -RAM,programs,active use ,exicutes commanders
Input/output-monitor, screen ,keyboard ,mouse
Secondary memory- nformation is moved betwwen main and secondary memorySoftware categories-operating system controls all machine activities ,application progarm genetic terms for any other kind of software
Analog vs.digital-
Anolog- continuious in direct proportion to the data represented
digital - the information is broken down into pieces and each peice is presented sepretetly
Digital information-
Computers atore all information digitally . numbers,text,graphics and images.audio,video,program instructions
Representing text digitally-
for example every character is stored as a number including spaces .digits and punctuation
corresponding upper and lower case letters are separate characters