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Updated: by Computer HopeAn sends information to a computer system for, and an reproduces or displays the results of that processing. Input devices only allow for input of data to a computer and output devices only receive the output of data from another device.Most devices are only input devices or output devices, as they can only accept data input from a user or output data generated by a computer. However, some devices can accept input and display output, and they are referred to as (input/output devices).For example, as you can see in the top half of the image to the right, a keyboard sends electrical signals, which are received by the computer as input. Those signals are then interpreted by the computer and displayed, or output, on the monitor as text or images. In the lower half of the image, the computer sends, or outputs, data to a printer, which will print the data onto a piece of paper, also considered output. Input devicesAn device can send data to another device, but it cannot receive data from another device.
Examples of input devices include the following. and - Accepts input from a user and sends that data (input) to the computer. They cannot accept or reproduce information (output) from the computer. Receives sound generated by an input source, and sends that sound to a computer. Receives images generated by whatever it is pointed at (input) and sends those images to a computer. TipFor additional information and examples, see our page. Output devicesAn device can receive data from another device and generate output with that data, but it cannot send data to another device.
Examples of output devices include the following. Receives data from a computer (output) and displays that information as text and images for users to view. It cannot accept data from a user and send that data to another device. Receives data from a computer (output) and displays, or projects, that information as text and images onto a surface, like a wall or a screen. It cannot accept data from a user and send that data to another device. Receives sound data from a computer and plays the sounds for users to hear.
It cannot accept sound generated by users and send that sound to another device. TipFor additional information and examples, see our page. Input/output devicesAn device can receive data from users, or another device (input), and send data to another device (output).
Hardware And Software Information
Examples of input/output devices include the following. and - Receives data from a computer (input), to copy onto a writable CD or DVD. Also, the drive sends data contained on a CD or DVD (output) to a computer. Receives, or saves, data from a computer (input). Also, the drive sends data to a computer or another device (output).
Hardware And Software Of A Computer
It refers to the use of machines & other mechanicaldevices in the process of education. Its origin lies in the application of“physical science” to education & training system. The process of teaching-learninghas been gradually mechanized through the use of teaching machines, radio,television, tape recorder, video-tape, projectors etc. The teacher can dealwith a larger & larger group of students at the same time by his discoursethrough these machines.
Now, the educational & training systems are able todeal with increased number & the cost per students has thus been reduced bythe hardware approach to education. Software approach refers to theapplication of teaching- learning principles to the direct & deliberateshaping of behavior. Its origin lies in the application of “behavior science”to the problems of learning & motivation. This view of educationaltechnology is closely associated with the modern principles & theories ofteaching.
Models of teaching, theory of instruction, theory of teacher-behavior & principles of programmed learning. It is characterized by taskanalysis, writing, objectives in behavioral terms, selection of the appropriateteaching strategies, reinforcement for correct responses & continuousevaluation.
