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Check box : a control that permits the user to make single selection or multiple selections from a number of options. Normally, check boxes are shown on the screen as a square box that can contain white space (for false) or a tick mark or X (for true).

Command Button : A control used to initiate an action. The most common buttons are :

  • OK
  • Close
  • Cancel
  • Apply
  • Default

Using a computer mouse

Use the mouse to interact with items on your screen as you would use your hands to interact with objects in the physical world. You can move objects, open them, change them, or throw them away, among other things.

A mouse has a primary and secondary mouse button. Use the primary mouse button to select and click items, position the cursor in a document, and drag items.

Use the secondary mouse button to display a menu of tasks or options that change depending on where you click. This menu is useful for completing tasks quickly. Clicking the secondary mouse button is called right-clicking.

The primary mouse button is normally the left button on the mouse. On a trackball, the primary mouse button is normally the lower button.

You can reverse the buttons and use the right mouse button as the primary button.Most mice now include a wheel that helps you to scroll through documents more easily.

Pointing

Pointing at items on the screen is the most basic mouse function. When instructions tell you to point your mouse at something, move your mouse on your desk until the mouse pointer is pointing at the object on the screen you need to select.

Clicking

After you have pointed your mouse at an item, you can click on the item to select it.

Double clicking

To double-click an item, point at the item and press your primary button twice quickly without moving the mouse. Double-clicking allows two different actions to be associated with the same mouse button. Often, single-clicking selects (or highlights) an object, while a double-click executes that object, but this is not universal.

Drag and drop

to move the item from one place to another using the mouse. Point at the item you need to move, and single click on it. Instead of releasing the mouse button after clicking, hold it down, and move your mouse to where you want to move the item. Release the mouse button to drop the item into place.

Right clicking

Right-clicking an item usually brings up a menu of actions you can take with the item. To right-click, point at an item and press the secondary (right) button on your mouse.

The control panel

Control Panel allows users to view and manipulate basic system settings and controls, such as adding hardware, adding and removing software, controlling user accounts, and changing accessibility options.

To start the Control Panel, from the Start menu, click on Control Panel. Here is the Control Panel window:

.

Configuring the screen

Configuring the screen is important because sometimes we spend many hours in front of the screen, so we hope it can be the most comfortable as possible.

Open the Display Tool (or right-click somewhere that has no icons on the desktop and select the option Properties from the shortcut menu that is displayed. The Display properties window will appear where we can change the configuration parameters.

Questions & Answers

where we get a research paper on Nano chemistry....?
Maira Reply
what are the products of Nano chemistry?
Maira Reply
There are lots of products of nano chemistry... Like nano coatings.....carbon fiber.. And lots of others..
learn
Even nanotechnology is pretty much all about chemistry... Its the chemistry on quantum or atomic level
learn
Google
da
no nanotechnology is also a part of physics and maths it requires angle formulas and some pressure regarding concepts
Bhagvanji
Preparation and Applications of Nanomaterial for Drug Delivery
Hafiz Reply
revolt
da
Application of nanotechnology in medicine
what is variations in raman spectra for nanomaterials
Jyoti Reply
I only see partial conversation and what's the question here!
Crow Reply
what about nanotechnology for water purification
RAW Reply
please someone correct me if I'm wrong but I think one can use nanoparticles, specially silver nanoparticles for water treatment.
Damian
yes that's correct
Professor
I think
Professor
Nasa has use it in the 60's, copper as water purification in the moon travel.
Alexandre
nanocopper obvius
Alexandre
what is the stm
Brian Reply
is there industrial application of fullrenes. What is the method to prepare fullrene on large scale.?
Rafiq
industrial application...? mmm I think on the medical side as drug carrier, but you should go deeper on your research, I may be wrong
Damian
How we are making nano material?
LITNING Reply
what is a peer
LITNING Reply
What is meant by 'nano scale'?
LITNING Reply
What is STMs full form?
LITNING
scanning tunneling microscope
Sahil
how nano science is used for hydrophobicity
Santosh
Do u think that Graphene and Fullrene fiber can be used to make Air Plane body structure the lightest and strongest. Rafiq
Rafiq
what is differents between GO and RGO?
Mahi
what is simplest way to understand the applications of nano robots used to detect the cancer affected cell of human body.? How this robot is carried to required site of body cell.? what will be the carrier material and how can be detected that correct delivery of drug is done Rafiq
Rafiq
if virus is killing to make ARTIFICIAL DNA OF GRAPHENE FOR KILLED THE VIRUS .THIS IS OUR ASSUMPTION
Anam
analytical skills graphene is prepared to kill any type viruses .
Anam
Any one who tell me about Preparation and application of Nanomaterial for drug Delivery
Hafiz
what is Nano technology ?
Bob Reply
write examples of Nano molecule?
Bob
The nanotechnology is as new science, to scale nanometric
brayan
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Damian
Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
Renato
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
Stoney Reply
why we need to study biomolecules, molecular biology in nanotechnology?
Adin Reply
?
Kyle
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
Adin
why?
Adin
what school?
Kyle
biomolecules are e building blocks of every organics and inorganic materials.
Joe
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Source:  OpenStax, Introduction to computer science. OpenStax CNX. Jul 29, 2009 Download for free at http://cnx.org/content/col10776/1.1
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