2. The mouse
The mouse
• The mouse may seem like a relatively new
gadget, but get this: It’s about to turn 50.
• The first model was invented in the early
1960s by Douglas Engelbart and Bill English at
Stanford University. Made of wood and
featuring a bright red push button, the
contraption was more matchbox than
computer device.
3. • Still, the “mouse” (so named because the
cord looked like a tail) took off, and
before long sleeker versions popped up
in R&D labs and in stores as the PC—and
computing itself—became more
mainstream.
4. • Whereas today’s mice are sleek and
curved, early models were blocky and
bulky, much like other hardware at the
time. Many companies, including
Microsoft, Apple, Hewlett-Packard, and
Logitech, produced innovative models in
the 1980s and ‘90s that resembled
space-age toys or garage-door openers.
5. • Some models succeeded, many didn’t.
And the types of mice varied by
technology as much as color: mechanical
mice, gyroscopic mice, 3D mice, optical
mice, tactile mice, and most
recently, wireless mice and touch mice.
6.
7. • Input device:
• It enables you to input information and
commands into the computer.
• Any machine that feeds data into a computer.
• An input device is any device that provides
input to a computer.
• It allows you to open programs, type
messages, drag objects, and perform many
other functions on your computer.
8. • A mouse is an input device that rolls around on a
flat surface. And controls the pointer
• The pointer is an on- screen object. Usually an
arrow, that is used to select text, access menus
and interact with programs, files or data that
appear on the screen.
• The mouse first gained widespread recognition
when it was package with the Apple Macintosh
computer in 1984.
• A mouse lets you position the cursor anywhere
on the screen quickly and easily without having
to use the cursor-movements keys
9. • The mouse let you to choose commands from
easy to use menus and dialog boxes.
• It allows you to create graphics
lines, curves, and freehand shapes on the
screen
• The mouse helped to establish the computers
as a versatile tool for graphic designers.
• Using the mouse
• You use a mouse to point to a location on the
screen. You simply use the mouse to place the
pointer on top o the object or location.
10. Four techniques
• Clicking, double-clicking, dragging, and right-clicking
• Clicking: means to move the pointer to the item on the
screen and to press and release the mouse button
once.
• Double-clicking: press and release the mouse button
twice in rapid succession.
• Dragging: press the mouse button, and hold it down as
you move the mouse. As you move the pointer, the
item is dragged along with it. You can drop the item in
a new position in the screen (drag-and-drop-editing)
• Right-clicking: it is used to open shortcut menus.
• Wheel: one of the purposes is scrolling through long
documents
11. Variants of the mouse
• Provide ease of use while taking up less space
than a mouse
The trackball
Trackpad
Pointers in the keyboard
12. The trackball
• It works like an upside-down mouse
• To move the pointer around the screen you
roll the ball with your thumb.
13.
14. The trackpad
• also called touchpad
• Is a stationary pointing device, the
movement of a finger across a small
touch surface is translated into
pointer movement on the computer
screen.
15. They are strike sensitive
You can tap the pad with your fingertip instead
of bottoms
They must be kept clean, dust and oil from the
user’s fingers can affect a trackpad’s
performance less sensitive to the touch
16.
17. Pointers in the keyboard
• Integrated pointing device
• Consisting in a small joystick positionated in
the middle of the keyboard, (generally
between G & H keys)
