ShortKeys for Computer

Micro-soft Windows Short-keys for Computer 

General Windows Keyboard Shortcuts

Alt+Tab

Switch between open applications to another applications. If applications is minimize than you can also switch with Alt+Tab short-key.

Alt+Shift+Tab 

Switch between open applications to another application but in different direction. 

Ctrl+Tab

This short-key is working in Browser. If user want switch from one Tab to another Tab of Browser than press Ctrl+Tab.

Alt+Print Screen   

If user want screenshot of computer screen than press Alt+Print Screen than go to paint application and press Ctrl+V for paste,save it where do you want.

Ctrl+Shift+Esc

Immediately open Task Manager so that user can stop the program which is currently open.

Ctrl+Alt+Del

It will also work as Ctr+Shift+Tab. After press Ctrl+Alt+Del user will open Task Manager.

Alt+Double+Click

Display the properties of the object user Double-Click but it was applied in Window-98 or later.

Alt+Esc

Switches between open applications to another applications. But it Window 95 and later it will switch between open app application on Task-bar in Windows 95 and later.  

INPUT and OUTPUT Devices

Input Devices 

Input devices are the ones through which users are allowed to input data and other instructions to the computer. The most popular choices for input devices are the keyboard and the mouse. Other examples include scanners,readers etc. Most input devices are electro-mechanical in nature which accept the inputs from the user through mechanical means, such as depressing of keys in a keyboard to enter some data or moving the mouse around on a surface to locate a position. Information acquired through such mechanical means is digitized(converted into electronic signals) and transmitted to the CPU/memory. 

Some important list about input device so that you can increase your knowledge.

• Keyboard
• Mouse 
• Touch-pad 
• Bar-code Reader 
• Light Gun 
• Light Pen 
• Magnetic Stripe Reader 
• Graphic Tablets 
• Touch Screen 
• Microphone 
• MICR 
• OMR 
• Scanner 
• Remote 
• Webcam   

Output Devices

Just as input devices are used to convey messages to the computer  to the computer,output devices are used by the computer to convey messages back to the users. The most common output device that almost all computers have is the monitor. The monitor is used to display the results of computations,messages,etc. Other examples of output devices are printers,speakers,plotters,etc.

The input and the output devices are sometimes known as peripheral devices These auxiliary devices may be connected to a computer and used. They are auxiliary because their existence within a computer is not mandatory unlike the CPU or the memory.

Some important list about output device so that you can increase your knowledge.

• Monitor 
• Speaker 
• Projector
• Printer
• Video Card
• Speech generating devices
• Sound Card

Definition of Computer

                                      Computer

The word computer comes from the latin word "compute" which means to, "to calculate." A Computer is a electronic machine that can solve different problems.A computer is combination of Hardware and Software. It can not be performs without Hardware and Software.
Computer has two device part one Input device and another is Output device. Now we have a question in our own mind what is Input and Output device.
Input Device:  When a human give some instruction to computer for perform it,which device is using for this task,called Input Devices. For example,Keyboard,Mouse,Trackball,Joystick,Electronic Pen,Touch Screen,Data Scanning Devices,Image Scanner,Optical Character Recognition(ORC),Optical Mark Reader(OMR),Digitizer etc
Output Device:  When computer give result of human instructions which devices is using here is called Output Device. For example Monitors,Printers,Projector,Speakers etc.

Some importance Feature of Computer    

As we know computer is very importance part of human's life. So now we will discuss on importance feature of computer.

1.Speed: Computer is very fast machine.You can performs many task at a time and it will give you return in microseconds and milliseconds. 

2.Accuracy : If we will talk about accuracy then we do not have any doubt on this machine. Actually, it has already design for purpose of accuracy in minimum time.

3. Diligence:  It is very diligence machine. It can work without feel tiredness,lack of concentration,fatigue etc.

4.Versatility: It means that you can many performs at a time. You may use your computer prepare payroll slips.

5.Power Of Remembering: Computer has power to store any type of information and data, you can recall any type of information & data at any time.

6.No IQ: Computer do not have any IQ.It do not have any mind. It is totally Dumb machine. It is work on user's instructions.

7.No Feeling: Computer is totally apart from human because human has emotions or feelings,knowledge and experience. It does not distinguish between user.