101 Useful Essays

Computer

An early calculating device called abacus was developed more than 2000 years ago. It is still in use in some countries. Several mathematicians and scientists have worked during the last three centuries to develop computer.The early electronic computers, called the first generation computers were based on vacuum tubes. The second generation was based on transistors,

Computer Read More »

Shopping Cart
×

Hello!

Click one of our contacts below to chat on WhatsApp

× How can I help you?