what are the basic computer knowledge.

 Q 1. what is a  computer. (कम्प्यूटर क्या है।)

Ans. A computer is an electronic machine through which mathematical or non mathematical work can be done.(कंप्यूटर एक इलेक्ट्रॉनिक मशीन है जिसके माध्यम से गणितीय या गैर गणितीय कार्य किया जा सकता है।)

computer features(कंप्यूटर सुविधाएँ)

• Speed(गति) = Computer work at very fast speed its speed is measured in hertz.(कंप्यूटर का काम बहुत तेज है, इसकी गति को हर्ट्ज में मापा जाता है।)
• Memory(याद) =. The computer has a high memory capacity. you can increase or decrease the memory of the computer as the requirement while human memory does not have this feature. Humans remember only the important things and do not remember the unnecessary things.(कंप्यूटर में मेमोरी क्षमता अधिक होती है। आप आवश्यकता के रूप में कंप्यूटर की मेमोरी को बढ़ा या घटा सकते हैं जबकि मानव मेमोरी में यह सुविधा नहीं है। मनुष्य केवल महत्वपूर्ण चीजों को याद रखता है और अनावश्यक चीजों को याद नहीं करता है।)
• Exhaustion (थकावट) = The computer has the capability to work 24 x 7 days. Which is not inside the human being. It never gets tired. Whereas human gets tired after working for some time. And he needs rest.(कंप्यूटर में 24 x 7 दिन काम करने की क्षमता है। जो इंसान के अंदर नहीं है। यह कभी थकता नहीं है। जबकि मानव कुछ समय तक काम करने के बाद थक जाता है। और उसे आराम की जरूरत है।)
• user friendly(यूजर फ्रेंडली)  = Computer is user friendly. That is , it is easy to operate.(कंप्यूटर उपयोगकर्ता के अनुकूल है। यानी इसे ऑपरेट करना आसान है।)

Q 2. How many types of computer

Ans. Type of computer base on application:- Depending on the application, there are three types of computer.

1. Analog computer                
2. Digital computer 
3. Hybrid computer

1. Analog computer:- Analog computers are used in the fields of science and engineering. Because perimeter is more use in these areas.(साइंस और इंजीनियरिंग के क्षेत्र में एनालॉग कंप्यूटर का उपयोग किया जाता है। क्योंकि इन क्षेत्रों में माप का अधिक उपयोग होता है।)
2. Digital computer:- This computer calculates the points digital computer converts data and programs into 0.1 and takes them in electronic form. Most of the time, computers are used as digital computers.(यह कंप्यूटर उन बिंदुओं की गणना करता है जो डिजिटल कंप्यूटर डेटा और कार्यक्रमों को 0.1 में परिवर्तित करता है और उन्हें इलेक्ट्रॉनिक से लेता है। ज्यादातर समय, कंप्यूटर डिजिटल कंप्यूटर के रूप में उपयोग किया जाता है।)
3. Hybrid computer:- Computers that work both analog and digital computers. They are called hybrid computers.(कंप्यूटर जो एनालॉग और डिजिटल कंप्यूटर दोनों का काम करते हैं। उन्हें हाइब्रिड कंप्यूटर कहा जाता है।)

Types of computer base on application:- Depending on the purpose there are two types of computer.

1. General-purpose computer
2. Special purpose computer

Definition

1.  General-purpose computer:- They are computer. By which common tasks ore done. For example, work-related to the letter-writing database is done. They are used in homes and shops.
2. Special purpose computer:- These computers are prepared for special work. Their CPU is relatively expansive relative to a normal computer. That is there are expensive computers. They are used in the following areas.

•  Meteorology, agricultural science, war, and space, etc.

Types of computers base on the size and work power:-Depending on the size and working the computers are of the following types.

1. Microcomputer
2. Work station computer
3. Supercomputer
4. Minicomputer
5. Mainframe computer

Definition

1. Microcomputer:- Microprocessors were used in these computers. Hence these are called microcomputers. These computers being used in home and small businesses.These computers are also called PC.
   

The PC is divided into the following parts.

• Desktop computer 
• Laptop computer
• Palmtop computer
• Notebook computer
• Tablet computer

Definition

1. Desktop computer:- Which are run by placing them on the table. These are a few big in size. It contains the CPU monitor keyboard mouse etc.
   
2. laptop computer:- They are laptop computers that are kept in the dock. They are very small in size. These computers can be easily moved from one place to another place. It consists of a CPU keyboard and mouse simultaneously they use batteries for power.