RSS

Software Variation Chart – different types of Approach

Fri, Mar 20, 2009

0 Comments

Simply a Software is a Computer instruction or data to do a task. The variation chat referst to changes and applications where it requires. The diffrent types of softwares in different areas are used.

For this the Software is often divided into two categories:

  • System software – Includes the Operating System(OS) and all the utilities that enable the computer function
  • Application software – Includes programs that do real work for users. Examples, Word Processors, spread sheets, and database management systems.

As mentioned above software can be divided into two general classes: systems software & applications software.

The chat for these diffent type of approach in its variation:

Software Chart

Software Chart

Where, the system software consists of low-level programs that interact with the computer at a very basic level, including operating systems, compliers, and utilities for managing computer resources.

Where, the application software (also called as end-user programs) includes database programs, word precessors, etc.,

Continue reading...

COMPUTER MONITORS – Classification based on Colour

Fri, Mar 20, 2009

0 Comments

COMPUTER’S MONITOR

Monitor is another term for the display screen. The term monitor, however, usually refers to the entire box, whereas display screen can mean just the screen.

Computer Monitor

Computer Monitor

In addition, the term monitor often implies graphics capabilities.

The MONITORs has own classification from its specification and manufaturing methods.

We presented here the CLASSIFICATION OF MONITORS – BASED ON COLOUR:

There are many ways to classify monitors. The most basic is in terms of colour capabilities, which separates monitors into three classes:

Monochrome

Monochrome

Monochrome

The Monochrome monitors actually display two colours, one for the background and one for the foreground.The colours can be black and white, green and black, or amber and black combination.

Gray-scale

Gray-Scale Monitor

Gray-Scale

A Gray-scale monitor is a special type  of monochrome monitor capable of displaying different shades of gray.

Colour

Today we are in this COLOR trend, a Colour monitor has capable of display 16 to over 1 million different colours.It sometimes called RGB(Red+ Green + Blue). This differes from colour televisions, for example which use composite video signals, in which all the colours are mixed together. But an RGB monitor consists of a vacum tube with three electorn guns  – one each for red, green, and blue at one end and the screen at the other end.

Colour Monitor - LCD

Colour Monitor - LCD

How it works? – the answer is, The three electron guns fire electrons at the screen, which contains a phosphorous coating. When the electron beams excite the phosphors, they glow. Depending on which beam excites them, they glow red, green, or blue. Ideally, the three beams should converge for each point on the screen so that each pixel is a combination of the three colours.

what is the major difference among them? – is, Colour and gray-scaling monitors are often classified by the number of bits they use to represent each pixel.

Continue reading...
Older Entries