Hardware

Physical form of the computer that consists of: Input device (instrument input) Used to receive the input can be:
signal input: energy-be changed by the system (data). maintenace input: the program that is used to process of data entry. Example: keyboard, pointing device, scanner, sensor.CPU (central processing unit) Place for processing instructions program (called a microprocessor).

System Computer

System
Sitem definition is a network of elemenelemen the interconnected, forming the
a unit to implement a principal purpose of the system. Destination basic computer system data processing is to information.
Elements:
1. Hardware
2. Software