An analog computer processes analog data. It requires a physical input of the problem to be solved, either mechanical, electrical or hydraulic quantities. These computers were commonly used in the 20th century for engineering and scientific calculations, but digital computers have replaced them for major tasks.

History of Analog Computer

Most analog computers were created in the early 20th century. The differential analyzer by Vannevar Bush developed at MIT, is one of the earliest examples of analog computers. It used mechanical shafts and gears to solve differential equations.

Other examples are the analog computer with electro-mechanical integrators developed by British engineer Douglas Hartee and the hydraulic analog computer by French engineer Georges R. de Sarrio.

These early inventions laid the foundation for developing modern analog computers and computing techniques.

Features of Analog Computers

Types of Analog Computers

Limitation of Analog Computer