What is computer??

Computer is a groupof electronic utensils. It's formed from millions component that can do together and make a work system

The concept of hardware-software-brainwareis a tri-single concept that can't be separated from each other. For the first stage, people must enter the program into the computer first. After that, the new computer can work to help people in solving problems or work.

(http://plpgtik.blogdetik.com/2009/03/10/pengertian-komputer/)

Characteristic of computer

Based on the data processed

• Computer Analog
• Computer Digital
• Hybrid Computer

Based on the usage

• Computer for specific objectives (spesial purpose computer)
• Computer for general purpose (general purpose computer)

Based on the capacity and size

• Micro Computer
• Mini Computer
• Small Computer
• Medium Computer
• Large Computer
• Super Computer

Based on the generation

• First generation computer (1946-1959)
• Second generation computer (1959-1964)
  
• Third generation computer (1964-1970)
  
• Fourth generation computer (1979-present)
  
• Fifth generation computer

(http://www.indiaonech.co.cc/1_29_Definisi-Komputer.html)