07-07-2012, 12:14 PM
mouse
[attachment=27084]
A mouse is a hardware device which allows the user to control a cursor to manipulate data without complicated commands.
It was simply named 'mouse', as the wire that was connected behind, was similar to the tail of a mouse.
History of MOUSE
The computer mouse was invented by a US inventor, Douglas Engelbart.
In 1964, a full-scale working model of the computer mouse was developed and used with a Graphical User Interface (GUI). It was a shell made of wood with two metal wheels.
In the 1960s and 70s, while at the Stanford Research Institutes's Augmentation Research Center, he concentrated on developing a system called as the 'oNLine System' (NLS). Many of his inventions such as the computer mouse and Windows were components of this system.
In 1984, Steve Jobs, the co-founder of Apple, Inc., re-designed the computer mouse for his Macintosh computers.
Douglas Engelbart received the 1997 Lemelson-MIT award along with a prize money of $500,000, which is the highest monetary award given for any invention till date.
In 1998, his name was eventually introduced in the 'National Inventors Hall of Fame'.
INTRODUCTION…
The computer industry often measures mouse sensitivity in terms of counts per inch (CPI), commonly expressed incorrectly as dots per inch (DPI).
In early mice, this specification was called pulses per inch (ppi).The CPI or DPI as reported by manufacturers depends on how they make the mouse; the higher the CPI, the faster the cursor moves with mouse movement.
However, software can adjust the mouse sensitivity, making the cursor move faster or slower than its CPI.
For simple software, when the mouse starts to move, the software will count the number of "counts" received from the mouse and will move the cursor across the screen by that number of pixels.
WORKING Of optical mouse…
The optical mouse has an inbuilt optical sensor.
The optical sensor reads the movements of the optical mouse (moved by the user)with the help of the light rays which comes out from the bottom.
When the user moves the optical mouse, the LED(Light Emitting Diode)present inside the mouse emits the light according the minute movements.
These movements are send to the camera as light rays.
[attachment=27084]
A mouse is a hardware device which allows the user to control a cursor to manipulate data without complicated commands.
It was simply named 'mouse', as the wire that was connected behind, was similar to the tail of a mouse.
History of MOUSE
The computer mouse was invented by a US inventor, Douglas Engelbart.
In 1964, a full-scale working model of the computer mouse was developed and used with a Graphical User Interface (GUI). It was a shell made of wood with two metal wheels.
In the 1960s and 70s, while at the Stanford Research Institutes's Augmentation Research Center, he concentrated on developing a system called as the 'oNLine System' (NLS). Many of his inventions such as the computer mouse and Windows were components of this system.
In 1984, Steve Jobs, the co-founder of Apple, Inc., re-designed the computer mouse for his Macintosh computers.
Douglas Engelbart received the 1997 Lemelson-MIT award along with a prize money of $500,000, which is the highest monetary award given for any invention till date.
In 1998, his name was eventually introduced in the 'National Inventors Hall of Fame'.
INTRODUCTION…
The computer industry often measures mouse sensitivity in terms of counts per inch (CPI), commonly expressed incorrectly as dots per inch (DPI).
In early mice, this specification was called pulses per inch (ppi).The CPI or DPI as reported by manufacturers depends on how they make the mouse; the higher the CPI, the faster the cursor moves with mouse movement.
However, software can adjust the mouse sensitivity, making the cursor move faster or slower than its CPI.
For simple software, when the mouse starts to move, the software will count the number of "counts" received from the mouse and will move the cursor across the screen by that number of pixels.
WORKING Of optical mouse…
The optical mouse has an inbuilt optical sensor.
The optical sensor reads the movements of the optical mouse (moved by the user)with the help of the light rays which comes out from the bottom.
When the user moves the optical mouse, the LED(Light Emitting Diode)present inside the mouse emits the light according the minute movements.
These movements are send to the camera as light rays.