COMP LIT FALL SEMESTER INPUT UNIT
GET OUT YOUR NOTEBOOKS AND PENS! NO SLEEPING, NO EATING, NO TALKING! LISTEN, LOOK, AND THINK. TAKE NOTES & ASK QUESTIONS. YOU WILL SEE THIS MATERIAL AGAIN! GET OUT YOUR NOTEBOOKS AND PENS! NO SLEEPING, NO EATING, NO TALKING! LISTEN, LOOK, AND THINK. TAKE NOTES & ASK QUESTIONS. YOU WILL SEE THIS MATERIAL AGAIN!
DO NOT SIT THERE AND NOT UNDERSTAND! SOME OF THIS STUFF MIGHT SEEM A LTTLE WIERD AND CONFUSING. IF IT IS YOU MUST TELL ME! DO NOT BE EMBARRASED. I WILL EXPLAIN IT SO YOU CAN UNDERSTAND. IS EVERYBODY ON BOARD? DO NOT SIT THERE AND NOT UNDERSTAND! SOME OF THIS STUFF MIGHT SEEM A LTTLE WIERD AND CONFUSING. IF IT IS YOU MUST TELL ME! DO NOT BE EMBARRASED. I WILL EXPLAIN IT SO YOU CAN UNDERSTAND. IS EVERYBODY ON BOARD?
REMEMBER… IF YOU SEE IT ON THE BOARD OR THE COMPUTER IT SHOULD BE IN YOUR NOTES! YOU WILL SEE THIS MATERIAL AGAIN! ALL WORK DONE ON TIME AND TURNED IN ON TIME! REMEMBER… IF YOU SEE IT ON THE BOARD OR THE COMPUTER IT SHOULD BE IN YOUR NOTES! YOU WILL SEE THIS MATERIAL AGAIN! ALL WORK DONE ON TIME AND TURNED IN ON TIME!
Once again: If you don’t “get it” then you must either… 1. Say so or 2. Ask a question Once again: If you don’t “get it” then you must either… 1. Say so or 2. Ask a question
NEVER BE AFRAID OR EMBARASSED TO ASK A QUESTION! ASKING QUESTION ABOUT WHAT YOU DON’T KNOW OR UNDERSTAND IS HOW YOU LEARN. DON’T WORRY ABOUT WHAT OTHERS THINK OR THINK THEY KNOW. THAT DOESN’T HELP YOU. NEVER BE AFRAID OR EMBARASSED TO ASK A QUESTION! ASKING QUESTION ABOUT WHAT YOU DON’T KNOW OR UNDERSTAND IS HOW YOU LEARN. DON’T WORRY ABOUT WHAT OTHERS THINK OR THINK THEY KNOW. THAT DOESN’T HELP YOU.
I/O and BIOS I/O stands for Input/Output BIOS stands for Basic Input/Output System
In computing, input/output, or I/O, refers to the communication between an a computer, and the outside world. Inputs are the signals or data sent to the system. Outputs are the signals or data sent by the system to the outside.
The first unit we cover is the one you use every time you do something on the computer… THE UNIT
The INPUT UNIT of the computer accepts information. It allows a user to put information into the computer by using input devices.
An input device is any peripheral (piece of computer hardware equipment) used to provide data and control signals to an information processing system (such as a computer).
USER The person who uses the computer or the programs and software.
Those pieces of input and output equipment are called PERIPHERALS.
Equipment that is not part of the central computer but are attached to and work with the central computer.
Input and output devices make up the hardware interface between a computer and the user or outside world.
Just one “heads up”, word of caution or word of warning to you about INPUT and OUTPUT devices. Some devices are INPUT ONLY Some devices are OUTPUT ONLY Just one “heads up”, word of caution or word of warning to you about INPUT and OUTPUT devices. Some devices are INPUT ONLY Some devices are OUTPUT ONLY But There are some devices that can act like or be used as both INPUT and OUTPUT But There are some devices that can act like or be used as both INPUT and OUTPUT
DEVICES OR EQUIPMENT THAT CAN ONLY BE USED TO INPUT INFORMATION
DEVICE A mechanical invention or contrivance for some specific purpose.
A human interface devices is a type of computer device that interacts directly with humans, takes input from humans and allows them to communicate with computers. HUMAN INTERFACE DEVICE
Common Human Interface Devices Keyboard Graphics tablet Mouse Joystick Trackball Gamepad Touchpad Pointing stick
Less Common Human Interface Devices Driving simulator devices and Flight simulator devices have HIDs such as gear sticks, steering wheels and pedals. Nintendo Power Glove Dance pad Wii Remote
You should remember that these are devices that are used only to put information into the computer. They are not used for output. Many of them are not used with the PC’s, laptops, notebooks or home computers most people have and use. You should remember that these are devices that are used only to put information into the computer. They are not used for output. Many of them are not used with the PC’s, laptops, notebooks or home computers most people have and use.
Early input devices Unit record equipment Punched card
Keyboards Computer keyboard Keyer Chorded keyboard LPFK KeyerChorded KeyboardLPFK
Pointing devices Mouse Touch screen Joystick Pointing stick Touch pad Trackball
Mouse Touch screen Joystick Pointing stickTouch padTrackball
High degree of freedom input devices Wired glove Fiber optic sensors Magnetic or ultrasonic motion tracking 3D or 6D Mice
Wired glove Fiber optic sensor Magnetic/Ultrasonic motion tracking 3D/6D mouse
Composite devices Game controller Gamepad Paddle Wii remote Game controller GamepadPaddlesWii remote
Imaging and Video input devices Webcam Image scanner Fingerprint scanner Barcode reader 3D scanner Laser rangefinder
Webcam Image scanner Fingerprint scanner Bar code reader 3D scanner Laser rangefinder
More input devices… Light pen Graphics tablet Optical mark reader Magnetic ink character recognition
Lightpen Graphics tablet
Optical mark reader Magnetic ink character recognition
Medical imaging Computerized Tomography Magnetic Resonance Imaging Positron Emission Tomography Medical Ultrasonography
Ultrasound MRI CAT PET
The information on certain types of CD’s and DVD’s can only be read by the computer. You can’t change anything, write or save on them. The disk drive can be used for both input and output but the CD or DVD itself is input only. NOTE
CAN YOU THINK OF ANY OTHERS?
REMEMBER: YOU WILL SEE THIS MATERIAL AGAIN! MAKE SURE IT’S IN YOUR NOTES AND THAT YOU KNOW IT AND UNDERSTAND IT. REMEMBER: YOU WILL SEE THIS MATERIAL AGAIN! MAKE SURE IT’S IN YOUR NOTES AND THAT YOU KNOW IT AND UNDERSTAND IT.
REMEMBER … ALL HOMEWORK DONE ON TIME AND TURNED IN ON TIME! REMEMBER … ALL HOMEWORK DONE ON TIME AND TURNED IN ON TIME! DONE MEANS THE WHOLE THING ON TIME MEANS THE NEXT DAY NO EXCUSES