Skip to main content

Introduction of Computer

.

 A computer is an electronic device. It take input and store the data in memory and performing the function to produce accurate result in output device. It is used to type document, send email, play game, browse the web and entertainment. 

Characteristics of computer 

1. High speed 

  • Computer is very fast device.
  • It is capable of performing calculation of very large amount of data.
  • The computer has unit of speed in microsecond, nanosecond and even in picosecond.
  • The computer is capable of performing millions of tasks per second.
2. Accuracy 

  • The computer produces highly accurate and reliable result.
  •  It does not make any kind of mistake in calculating.
  • The calculation are 100% error free.
  • The computers perform accurate 'n' number of times.

3. Storage capability

  • A computer has much more storage capability.
  • It can store large amount of data.
  • It can store any type of data such as image, video, text document, audio and many more.
4. Diligence

  • Diligence means that the computer is capable of doing any work for a long time without getting tired and getting stops.
  • It can works continuously without any error.
  • Unlike human beings, a computer is free from tiredness and lack of connection.

5. Versatility

  • A computer is capable of performing a wide variety of function.
  • Computer can be used to solve the problems related to various field.
  • It can perform the basic arithmetic and logical operations.
  • It accept data and produce result.


Home

Comments

Post a Comment

Popular posts from this blog

Important Questions of Data Structure and Algorithm (DSA)

 . 1. What is Data structure? Explain different operations to be performed on data structure. 2. Define stack as ADT. Convert P+Q-(R*S/T+U) - V*W into infix expression to postfix. 3. Define Queue. Explain its type with example. 4.  Difference between stack and Queue. 5. Difference between Linear Queue and circular Queue. 6. Write an algorithm to enqueue and dequeue data element in a circular queue.                              7. Define Linked List. Explain its type. How does double linked List is different from circular linked   List. 8. What is recursion and recursive function? write a recursive function to compute Fibonacci number. 9. What is an AVL tree ? Create an  AVL tree from the following data:      18, 12, 14, 8, 85, 25, 31, 24, 27 10. Define B-tree? How to insertion and deletions of elements can be done in a B-tree. 11. Create an B-tree from the following Data:  ...

BCA Math II old question model solution

 . BCA Math II question model 2018: BCA Math II question model 2019: BCA Math II question model 2020:

Define LAN and WAN

 . Local Area Network (LAN)  A LAN is a network that is used for communicating among computer devices, usually within an office building or home.   LAN’s enable the sharing of resources such as files or hardware devices that may be needed by multiple users • • Is limited in size, typically spanning a few hundred meters, and no more than a mile.  Is fast, with speeds from 10 Mbps to 10 Gbps.  Requires little wiring, typically a single cable connecting to each device.  Has lower cost compared to MAN’s or WAN’s.  LAN’s can be either wired or wireless. Twisted pair, coax or fiber optic cable can be used in wired LAN’s. Advantages of LAN :    The data is transferred at an extremely faster rate in local Area Network.  Local area network (LAN) provides higher security. Disadvantages of LAN :   Initial cost of installing local area network is quite high.  Unauthorized user can access critical data of an organization in case LAN ad...