February 11, 2019

What is the Difference Engine?

A Difference Engine is an automatic mechanical calculator designed in 1837. The size of this calculator is about as big as your living room. It is […]
February 11, 2019

What is the ENIAC?

ENIAC (Electronic Numerical Integrator and Computer) is the world’s first general-purpose computer designed in 1943. Although it took days to program, ENIAC could perform thousands of […]
February 11, 2019

What is the Apple II?

Apple II is the first successful mass-produced microcomputer designed in 1976. The size of Apple II is smaller than a suitcase. It offered simplicity, the ability […]
February 12, 2019

Why aren’t all batteries rechargeable?

You probably ask this question every time the double A’s Wii remote right when you reach the final level. To get to the bottom of why […]