Introduction of computer

What is computer? (कंप्यूटर क्या है?)

A computer is an electronic device that manipulates information, or data. It has the ability to store, Receive, and process data. You may already know that you can use a computer to type documents, send email, play games, and browse the Web. You can also use it to edit or create spreadsheets, presentations, and even videos.

इनपुट

प्रोसेस

आउटपुट

 

 

 

 

 

इनपुट-

A computer accept data and instruction (Input)

Process- Some calculation and logical operation are performed on Data by executing the program this activity are also known as processing   

Output- After the processing  the data the final result of processing is called is out put

 

 

 

 

 

Computer System Concept (कंप्यूटर की

अवधारणा)

एक या एक से अधिक उद्देश्यों को प्राप्त करने के लिए कार्यरत इकाइयों के समूह को एक “System” कहते हैं| जैसे – Hospital एक System है जिसकी इकाइयां (units) Doctor, Nurse, Medical, Treatment, Operation, Peasant आदि हैं | इसी प्रकार Computer भी एक System के रूप में कार्य करता है जिसके निम्नलिखित भाग हैं|

• Hardware
• Software
• User

Hardware:-  Computer के वे भाग जिन्हें हम छु सकते है देख सकते है Hardware कहलाते हैं| जैसे-Keyboard, Mouse, Printer, Scanner, Monitor, C.P.U. etc.

 computer hardware is the collection of physical components that constitute a computer system. Computer hardware is the physical parts or components of a computer, such as monitor, keyboard, computer data storage, graphic card, sound card, motherboard,

Software:- Computer के वे भाग जिन्हें हम छु नहीं सकते सिर्फ देख सकते हैं सॉफ्टवेयर (Software) कहलाते हैं| जैसे- MS Word, MS Excel, MS PowerPoint, Photoshop, PageMaker etc.