Spacebar It is used to enter a space at the current cursor location. These devices translate the letters, numbers, and other natural-language symbols that Output devices essay conventionally use in reading and writing into the configurations of 0 and 1 bits that the computer uses to process data.
Some of it is peripheral equipment. The Scanner Hand-held scanners are commonly seen in big stores to scan codes and price information for each of the items. It is capable of producing graphs, drawings, charts, maps etc.
Like the television, monitors are also available in different sizes. Print speed is measured Output devices essay terms of number of characters printed in a unit of time and is represented as characters-per-second cpslines-per-minute lpmor pages-per-minute ppm.
The most conventional kind of mouse has two buttons on top: Also we need to add a sound card to the computer. Pictures taken using a digital camera are stored inside its memory and can be transferred to a computer by connecting the camera to it.
Printed reports and program listings are among the most common examples. These devices produce output for screen display, output onto paper or film, and so forth.
It allows you to select and move an item from one location to another. Print resolution is measured in terms of number of dots per inch dpi. The Mouse c Joystick The joystick is a vertical stick which moves the graphic cursor in a direction the stick is moved.
They are also termed the bar code readers. Special-function Keys These keys have special functions assigned to them and can be used only for those specific purposes. The equipment we are about to discuss can be classified in a number of ways.
Usually used to display a set of commands. A digital camera takes pictures by converting the light passing through the lens at the front into a digital image.
Shift This key is used to type capital letters when pressed along with an alphabet key. Alt Also like the control key, Alt key is always used in combination with other keys to perform specific tasks.
The concepts are also very clearly understood by seeing at the figures in the chapter.
Its advantages like low energy consumption, smaller and lighter have paved its way for usage in portable computers laptops. The term hard copy generally refers to output that has been recorded onto a medium such as paper or microfilm- in other words, output that is in a permanent and highly portable form.
Printers, monitors, and most computer microfilm devices, on the other hand, specialize in output. Most input and output devices contain limited storage capacity as well. The functions assigned to these keys differ from one software package to another.
A speech recognition program can process the input and convert it into machine-recognized commands or input. These devices normally work independently of the main CPU. Also used to type the special characters located on the upper-side of a key that has two characters defined on the same key.
Delete It is used to delete the character at the cursor position. This equipment, of course, can also be discussed in terms of its input or output functions.
Keyboards and optical character recognition devices are designed primarily for input. Sound card — Plays contents of digitized recordings, Speakers — Attached to sound card. Some auxiliary devices prepare input data for later mounting onto a peripheral device. The Printer d Plotter Plotters are used to print graphical output on paper.
It also displays the program or application output. Dot-matrix and Character printers fall under this category. Output devices produce results in either hard copy or soft copy form. Other input or output equipment, such as many electronic cash registers and computer output microfilm COM devices, are auxiliary equipment.
This keypad is provided to support quick entry for numeric data. Joystick is used as an input device primarily used with video games, training simulators and controlling robots 3 Figure 3:WHAT IS OUTPUT DEVICES.
Output device are computer hardware that allow a computer system to communicate information to a user or another system. This information can be in any form, and includes sound, images, and even tactile experiences. Output devices can usually only be used to send data from the computer; items called input devices allow users and other systems to send data to the computer.
One of the most common output devices is the printer. Printer produce hard-copy output, such as management reports, memos, payroll checks, and program listings.
Printers are generally classified as serial printers, line printers, or page printers.
Input, Output, Storage Devices, Speed Essay use a special scanning device called an optical data reader that uses optical mark recognition (OMR); when people complete the OMR form using pencils to fill in boxes on OMR paper an optical mark reader (OMR) can convert the pencil marks into digital data.
To interact with a computer we use external devices called input-output or peripheral devices, this is the way a computer has to receive and give information to the user, and without it a computer is practically useless, so the need of input and output devices are the first path to computer organization.
Output Devices a. Monitor, Speaker, Printers (different types) I.
Introduction The computer will be of no use unless it is able to communicate with the outside world. Input/Output devices are required for users to communicate with the computer.
task 1: output devices Output devices let you see data that has been processed or is stored on the hard disk or any other storage media. A monitor lets you see data on the screen, a printer produces a paper copy that you can hold and read.Download