Evolution of Computers (Computer ka Vikas)
Computer ka evolution dheere-dheere hua. Shuruat me computers manual aur mechanical devices the, jinka main kaam sirf calculations karna tha.
Time ke saath ye machines electronic bani aur yahin se modern computers ka base tayaar hua.
Flow Diagram: Early Computing Devices
Abacus
Abacus sabse purana manual calculating device hai. Iska inventor known nahi hai, lekin ise ancient civilizations jaise China me use kiya jaata tha.
Lagbhag 3000 BC me iska use shuru hua. Ye addition aur subtraction jaise basic calculations ke liye use hota tha aur isme electricity ki koi zarurat nahi hoti thi.
Pascaline
Pascaline ek mechanical calculator tha jise Blaise Pascal ne 1642 me invent kiya.
Ye machine gears aur wheels par kaam karti thi aur mainly addition aur subtraction kar sakti thi.
Difference Engine & Analytical Engine
Charles Babbage ne Difference Engine aur Analytical Engine invent kiye. Difference Engine 1822 me mathematical tables calculate karne ke liye design hua tha.
Analytical Engine 1837 me propose hua aur ise duniya ka pehla general-purpose computer maana jaata hai. Isme input, processing aur output jaise modern computer ke basic concepts the.
ABC (Atanasoff–Berry Computer)
ABC ka full form Atanasoff–Berry Computer hai. Ise John Atanasoff aur Clifford Berry ne 1937–1942 ke beech develop kiya.
Ye pehla electronic digital computer tha jo binary number system (0 aur 1) par kaam karta tha aur linear equations solve karne ke liye design kiya gaya tha.