Saturday, 31 March 2012

Top Five Tips To Improve System Speed

1.     Delete the temporary internet files regularly.
2.   Defragment your hard drive once every two months. This will free up a lot of space on your hard drive and rearrange the files so that your applications run faster.
3.   When installing new Softwares disable the option of having a tray icon. The tray icons use up available RAM, and also slow down the booting of your PC. Also disable the option of starting the application automatically when the PC boots. You can disable these options later on also from the Tools or preferences menu in your application.
4.   Refresh the desktop after closing any application. This will remove any unused files from the RAM.
5.    Empty the recycle bin regularly. The files are not really deleted from your hard drive until you empty the recycle bin.

Friday, 30 March 2012

Basic Shortcut Keys

The followings are some basic PC shortcut keys that are supported in most IBM compatible computers. They are also supported in most application software.  (Supported Versions - 95, 98, ME, NT, 2000, XP, Vista)

Shortcut Keys                                                    Description
Alt + e                                                                   Pull down the top Edit menu.
Alt + f                                                                    Pull down the top File menu
Ctrl + a                                                                  Select all text.
Ctrl + c                                                                  Copy selected item(s) (to clipboard).
Ctrl + f                                                                   Find
Ctrl + v                                                                  Paste copied item(s) from clipboard
Ctrl + x                                                                  Cut
Ctrl + Ins                                                               Same as Ctrl + c
Ctrl + (left arrow)                                                 Move one word to the left at a time.
Ctrl + (right arrow)                                               Move one word to the right at a time.
Shift + Ins                                                             Same as Ctrl + v
F1                                                                          Help
Home                                                                    Jump to the beginning of the line or page.
Ctrl + Home                                                         Jump to the beginning of the document or page.
Ctrl + End                                                             Jump to the end of the document or page.

Operating System Software

Operating system software provides a "user interface" for users to manage files, start programs, customize computer settings, and other tasks. The operating system also provides the fundamental core computer functionality for programmers.

Intel based PCs use Microsoft Windows version 3.1 (older) or Windows 95 as the operating system. Macintoshes use the Macintosh operating system.

Software Applications

Application software uses the operating system software and provides the real functionality of a computer. Applications include:
- Word Processing (MS Word, WordPerfect, Ami...)
- Spreadsheets (Lotus 123, MS Excel...)
- Database (DBase, Fox Pro, Oracle...)
- Presentation (MS PowerPoint, Persuasion...)
- Internet Browsers (Netscape Navigator, MS Internet Explorer)
- Games

What is a Computer?

Computers are not very intelligent devices, but they handle instructions flawlessly and fast. They must follow explicit directions from both the user and computer programmer. Computers are really nothing more than a very powerful calculator with some great accessories. Applications like word processing and games are just a very complex math problem

Software and Hardware

If you use a player piano as an analogy, the piano can be thought of as the hardware and the roll of music as the software.
  The software a series of very simple computer instructions carefully organized to complete complex tasks. These instructions are written in programming languages (like BASIC, PASCAL, C...) to help simplify the development of applications.
  The hardware is what sits on your desk and executes the software instructions. The player piano is useless unless the roll of music has been written correctly.

Hardware Components

Keyboard, Mouse, Monitor, Hard dist etc..

Hardware Accessories

Modems, CD-ROM, Printers, Scanners etc...