raja veer Vikram Singh dilari jatashankar
इस ब्लॉग से लोकप्रिय पोस्ट
computer ka udhvab our vikash
computer ka ikash 1.1 abekas yah ek pracheen gadna yantra hai jiska aviskar pracheen bebilon me anko ki gadna ke liye kiya ggya tha ! ise sansar ka pratham gadak kaha jata hai ! isme taron ( wires) mw ggolakar manke ( beads ) piroyi jati hai ! jiski sahayta se gadna ko aashan banaya gya ! 1.2 paskalain (pascaline) phrans ke aditg blej paskal ne 1642 me pratham yantrik gadna masheen ka avishkar kiya ! yah kebal jod ghata sakta thi ! ath ise ading masheen bhi kaha ya ! 1.3 difference engine aur analytical engine