Unit -2
Computer Hardware
,Computer System
,
, Basic Components
• Computer system is composed of several key componets :
hardware, software , firmware , people , data and processes
• Hardware: physical parts of the computer
– CPU – Central Processing Unit
– Memory
• Primary memory- ROM
• Temporarily memory – RAM
• Permananet memroy – like secondary storage- Hard drives , pendrives
– Input Devices : tools that allows users to communicate and give
instructions to the computer- KEYBOARD,MOUSE,TOUCH-SCREEN,
Touch-pad
– Output Devices : responsible for displaying ro producing results of the
computer’s processing. Monitors, Printers, speakers,
Computer Hardware
,Computer System
,
, Basic Components
• Computer system is composed of several key componets :
hardware, software , firmware , people , data and processes
• Hardware: physical parts of the computer
– CPU – Central Processing Unit
– Memory
• Primary memory- ROM
• Temporarily memory – RAM
• Permananet memroy – like secondary storage- Hard drives , pendrives
– Input Devices : tools that allows users to communicate and give
instructions to the computer- KEYBOARD,MOUSE,TOUCH-SCREEN,
Touch-pad
– Output Devices : responsible for displaying ro producing results of the
computer’s processing. Monitors, Printers, speakers,
