archive for July, 2009

• 2009.07.21Sajjad Heder

  What is a Computer Microphone?

  It is quite easy to convert the spoken word to a digital signal for computer input. The microphone converts audio signals...

• 2009.07.21Sajjad Heder

  What is a Computer Mouse?

  The mouse is a hand-held device with optical laser protruding from its base. As you push the mouse over the surface of the...

• 2009.07.21Sajjad Heder

  What is a Computer Keyboard?

  The keyboard is still the primary device for inputting information to a computer, though voice input devices may ultimately...

• 2009.07.21Sajjad Heder

  Input and Output Devices

  Before a computer can get to work solving a problem, it must be given the program and the data if there is any. After it...

• 2009.07.21Sajjad Heder

  Application Software

  This is the software that enables us to do the things that we bought our computer for, such as typing a letter, preparing...

• 2009.07.21Sajjad Heder

  System Software

  The system software of a computer consists of a collection of operative programs whose purpose is to make the use of the...

• 2009.07.21Sajjad Heder

  Computer Hardware and Software

  Programs written in a computer's machine language can be directly executed by the computer's electronic circuits, without...

• 2009.07.20Sajjad Heder

  The IT Revolution

  The growth in electronics over the past decade has been phenomenal. What we have seen is not an evolution in technology but...

• 2009.07.04Amjad Iqbal

  DoFollow Blog List and How to boost PageRank

  To make a successful blog and boost up PageRank you need back links from other blogs and websites. The popular and simple...