16/10/2025
First Generation (1940s-1950s): Vacuum Tubes 💡Yeh daur computers ki ibteda (beginning) thi, jab machine ka aakaar (size) aur taaqat (power) behtareen nahi thi.Technology aur ComponentsCore Component: Is generation ka sabse zaroori hissa Vacuum Tubes the, jinhe Thermionic Valves bhi kehte the.Function: Yeh tubes electronic signals ko amplify (badhana) karne aur switching (on/off) karne ka kaam karte the. Ek computer mein hazaaron ki tadaad mein yeh tubes lage hote the.Storage: Data store karne ke liye Magnetic Drums ka istemaal kiya jata tha. Magnetic Drum ek rotating cylinder thi jiski surface par data store hota tha.Input/Output: Data input aur program instructions dene ke liye Punched Cards (chhed kiye hue kaagaz) aur Paper Tapes ka istemaal hota tha. Output bhi aksar punched cards ya simple printouts par milta tha.Key Characteristics (Khaasiyatein)FeatureDetailImpactSize (Aakaar)Bahut bade (Enormous). Yeh poore kamre (whole rooms) jitne bade hote the.Inhe khada karna (install) mushkil aur mehenga tha.Speed (Raftaar)Bahut dheemi (Very slow). Calculations milliseconds mein hoti thi.Computer ki processing capacity bahut kam thi.Heat (Garmi)Bahut zyada garmi paida karte the (Generated extreme heat).AC (Air Conditioning) zaruri tha. Tubes jal jaate the (burned out), jisse machine kharab ho jaati thi (frequent breakdowns).Reliability (Bharosa)Bahut kam (Very low). Vacuum Tubes ki wajah se aksar kharabi aati thi.Maintenance (dekhbhaal) aur repair bahut mushkil tha.Cost (Keemat)Bahut mehenge (Extremely expensive). Sirf bade sarkaari idare (large government agencies) aur universities hi afford kar sakte the.Aam logon ki pahunch se bahar the.Programming aur SoftwareProgramming Language: Programming ke liye sirf Machine Language ka istemaal hota tha, jo Binary Code (0s aur 1s) mein likhi jaati thi.Difficulty: Programming bahut mushkil aur waqt lene waali (time-consuming) thi, kyunki har instruction ko numbers mein dena padta tha.Software Use: Yeh computers sirf scientific calculations, missile trajectory, aur government census (jannaamari) jaise bade aur vishesh kaamon (specialized tasks) ke liye istemaal hote the.Examples of First-Generation ComputersENIAC (Electronic Numerical Integrator and Computer):Pehla general-purpose electronic digital computer mana jaata hai.Ismein lagbhag 18,000 Vacuum Tubes the aur iska vajan (weight) lagbhag 30 tons tha.Fauji (military) use ke liye banaya gaya tha.UNIVAC I (Universal Automatic Computer):Pehla commercial computer jo America mein launch kiya gaya aur businesses ko becha gaya.Ise United States Census Bureau ne pehli baar istemaal kiya tha.
