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Wednesday, December 23, 2009

Storage

Computer can store large volume of data.The Storage capacity of the computer is measured in Kilobytes.Storage capacity helps in analysing data and take quick decision.Data Store in computer can can be retrieve ,delete and updated.
  1. Temporary Memory
It is a Volatile memory .In this memory the data are erased when the power of the computer is off or when the computer is shut down.In this memory we can both read and write and can modify .In this data are not store for long time.RAM is the example of Temporary memory.

2.Permanent Memory

It is a non volatile memory.Once the data is stored in it ,it cant be erased nor modified.It saves the data although the computer is shut down or the power is off.The data and the program in the ROM is uinalterned.ROM is the example pf permanent memory.It is only Read Only Memory.


Storage
4 Bits-1 Nibble
8 bits-1 Byte
1024 byte-1 KB
1024 KB-1 MB
1024 MB -1 GB
1024 GB-TB

Tuesday, December 22, 2009

Capabilities of Computer

The capabilities of the computer are as follows:
  • Computer provide us the information that we can usse in the decision making .
  • Computer provide us the faster and cheaper communication with the help of the internet.
  • Computer can also do the task that are critical or dangerous to human beings.
  • Computer can perform almost all the work when user provide appropriate software and hardware componets.
  • Computer process the data in the very fast speed and steady.
  • Computer can store large volume of data
  • Computer can perform repeated task with the same speed and accuracy.
  • Computer helps to ssearch the information with the help of different search engine.

Monday, December 21, 2009

Programming Language

The language which are used to write program or software is called programming language.It is a language with its own grammar and syntax and that can communicate with computer . It is a set of a codes that are writen by programmer to instruct or to guide the computer hardware to perform the specific task.
Programming Language are clasified as:

  1. Machine Level Language:Its a machine oriented language that a computer can understand.Its made up a series of 0 or 1 and a sequence of bits.It is very tedious , time consuming and troublesome to write program in this language.Program,codes or statement can be loaded directly into the computer memory.
  2. Asembly Language:Its a low level language which was introduced to overcome the some of the difficulties of the machine level language.It permits the use of mnemonics (alpha numeric codes).Computer doesnot understand mnemonics language,program written on assembly language are translated into machine level language before execution.This translation is done by assembler.The program written on assembly language is called source case.Program after translating into machine code is called object code.
  3. High Level Language:It is a language in which instruction are closer to the english language and mathematical notation .This language is very easy to modify and maintain.Program written on this language are also classified according to whether they solve the general problem or specific problem.
Types of High Level Language are

  • Procedual Oriented Language
  • Program Oriented Language
  • Natural Oriented Language

Sunday, December 20, 2009

Scopes of Computer

  1. Communicatiion: Development of computer had developed the easy means for communication .Computer helps to communicate from one part of the world to another through voice mail,chat,Email,Net phone ,video confercing and so on.
  2. Banking system and Ticket reserving:In tthe recent years the computers are more advanced.It helps in banking system,airplane ticket reserving ,account transfer and much more facilities.
  3. Business: Industrial business ,agricultural ,business,commerce,medicine,tourism and banking.are some area where computers capabilities are utilized.It helps to keep data of daily transcation and also help in reseach.
  4. Studies: Computers are used as aids in the study and analysis of many vast subjects.It assist student in learning and understanding the subjects matter easily .It helps in the research of mines, golds, minerals ,distance education,It education and also can study features of computer.It helps students for doing different works nd increase their creativity.
  5. Search Engine:Computer helps to search different information with the help of different search engine like yahoo,goggle,hotmail and so on .With the help of these search engine people can many information related with different topics.