सदस्य वार्ता:अनिल कुमर
नमस्कार अनिल कुमर जी! आपका हिन्दी विकिपीडिया में स्वागत है।
 प्रस्तावना  विकिनीतियाँ, नियम एवं सावधानियाँविकिपीडिया के सारे नीति-नियमों का सार इसके पाँच स्तंभों में है। इसके अलावा कुछ मुख्य ध्यान रखने हेतु बिन्दु निम्नलिखित हैं:
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 विकिपीडिया में कैसे योगदान करें?विकिपीडिया में योगदान देने के कई तरीके हैं। आप किसी भी विषय पर लेख बनाना शुरू कर सकते हैं। यदि उस विषय पर पहले से लेख बना हुआ है, तो आप उस में कुछ और जानकारी जोड़ सकते हैं। आप पूर्व बने हुए लेखों की भाषा सुधार सकते हैं। आप उसके प्रस्तुतीकरण को अधिक स्पष्ट और ज्ञानकोश के अनुरूप बना सकते हैं। आप उसमें साँचे, संदर्भ, श्रेणियाँ, चित्र आदि जोड़ सकते हैं। योगदान से संबंधित कुछ महत्वपूर्ण कड़ियाँ निम्नलिखित हैं:
 अन्य रोचक कड़ियाँ | |
| (यदि आपको किसी भी तरह की सहायता चाहिए तो विकिपीडिया:चौपाल पर चर्चा करें। आशा है कि आपको विकिपीडिया पर आनंद आएगा और आप विकिपीडिया के सक्रिय सदस्य बने रहेंगे!) | ||
-- नया सदस्य सन्देश (वार्ता) 05:56, 1 अगस्त 2015 (UTC)
anil kumar jangid[संपादित करें]
Computer technology" and "Computer system" redirect here. For the company, see Computer Technology Limited. For other uses, see Computer (disambiguation) and Computer system (disambiguation). Computer Acer Aspire 8920 Gemstone.jpgColumbia Supercomputer - NASA Advanced Supercomputing Facility.jpgIntertec Superbrain.jpg 2010-01-26-technikkrempel-by-RalfR-05.jpgThinking Machines Connection Machine CM-5 Frostburg 2.jpgG5 supplying Wikipedia via Gigabit at the Lange Nacht der Wissenschaften 2006 in Dresden.JPG DM IBM S360.jpgAcorn BBC Master Series Microcomputer.jpgDell PowerEdge Servers.jpg
A computer is a general-purpose device that can be programmed to carry out a set of arithmetic or logical operations automatically. Since a sequence of operations can be readily changed, the computer can solve more than one kind of problem.
Conventionally, a computer consists of at least one processing element, typically a central processing unit (CPU), and some form of memory. The processing element carries out arithmetic and logic operations, and a sequencing and control unit can change the order of operations in response to stored information. Peripheral devices allow information to be retrieved from an external source, and the result of operations saved and retrieved.
Mechanical analog computers started appearing in the first century and were later used in the medieval era for astronomical calculations. In World War II, mechanical analog computers were used for specialized military applications such as calculating torpedo aiming. During this time the first electronic digital computers were developed. Originally they were the size of a large room, consuming as much power as several hundred modern personal computers (PCs).[1]
Modern computers based on integrated circuits are millions to billions of times more capable than the early machines, and occupy a fraction of the space.[2] Computers are small enough to fit into mobile devices, and mobile computers can be powered by small batteries. Personal computers in their various forms are icons of the Information Age and are what most people consider as “computers.” However, the embedded computers found in many devices from MP3 players to fighter aircraft and from electronic toys to industrial robots are the most numerous.