Modern Electronic Computers
Early machines ke baad computers electronic bane aur unka practical use shuru hua. In computers ka use war, science, government aur business fields me kiya gaya.
Yahin se modern computer era ki shuruaat hoti hai.
Flow Diagram: Modern Electronic Computers
MARK I
MARK I ka full name Harvard Mark I (Automatic Sequence Controlled Calculator) tha. Ise Howard Aiken aur IBM ne 1937 me develop kiya.
Ye duniya ka pehla electromechanical computer tha, jisme electrical aur mechanical parts dono use hue.
MARK I ko World War II ke dauran calculations ke liye use kiya gaya. Ye size me bahut bada (lagbhag 50 feet) tha aur automatic tha, lekin speed kaafi slow thi.
ENIAC
ENIAC ka full form Electronic Numerical Integrator and Computer hai. Ise J. Presper Eckert aur John Mauchly ne 1946 me invent kiya.
Ye duniya ka pehla electronic general-purpose digital computer tha.
ENIAC me lagbhag 18,000 vacuum tubes ka use hua. Ye apne time ka bahut fast computer tha aur seconds me thousands of calculations kar sakta tha, lekin program change karna difficult hota tha.
UNIVAC I
UNIVAC I ka full form Universal Automatic Computer hai. Ise 1951 me Eckert aur Mauchly ne develop kiya.
Ye duniya ka pehla commercial (business) computer maana jaata hai.
UNIVAC I ka use U.S. Census Bureau ne kiya tha. Ye mainly data processing aur business work ke liye design kiya gaya tha aur data store karne ke liye magnetic tape ka use hota tha.