HARTRON EXAM THEORY PART -05

Input device

Input

Any data or instruction that you put into the computer’s memory is called input. Users can enter input using various techniques.
Tractors are typed through the keyboard. Instructions can be inserted into the computer by rolling the mouse. You can speak with a microphone. With the help of special tools, you can write on the screen of a computer. There are some devices with which you can make a choice only by touching the computer screen.Pictures can be inserted into a computer through digital cameras, video cameras or scanners.

The keyboard

The keyboard is an input device with keys. By pressing these keys, data is inserted into the computer. Keyboard keys are similar to typewriter keys. A desktop computer has 101 to 105 keys. Small computers such as notebook computers have a low key.

The mouse

A mouse is a ponting device that easily fits in the hands with the help of the mouse to control the movements of the on-screen pointer, often called a mouse pointer, and can be selected from the screen. There are two or three buttons on the top of the mouse. Some icons also have a small wheel. The lower part of the mouse is flat with a system of motion detection of the mouse.

Joystick

Users who use software left over from the game often use a joystick as a pointing device. The joystick is a liver standing upright at the base. The player controls the game by turning the lever in different positions. The liver has buttons. Which are called triggers. Those who work on pressing. Some joy sticks have additional buttons for other tasks.

Touch Screen

A touchscreen is a screen in which you can communicate with different areas of the screen to the computer through the touch of a finger. In this system, plants have to be shaken frequently, so often people do not put large amounts of data on the touch screen. Rather, it is used to touch the pictures, figures or words marked on the screen. Many ATM machines have a touchscreen.So that the consumer can easily do the work related to his account. Some notebook computers also have a touchscreen.

Screener

An optical scanner is commonly known as a scanner. This light setting is the input device. The screener reads the printed text and graphics and converts the results into a form that computers can use. One of the most popular scanners is the flatbed screener. Instead of copying the flatbed scanner document to paper, it copies the file into its memory. Other than that it works just like a copy machine. Once it scans the object.Then it gets attached to the object like a display on the screen, store in storage media, print, fax and email message.

Voice input

You can through the process, enter the voice data in the attached microphone to the computer’s sound card, known as voice input. Play using the keyboard to input data. Many users talk to their computer. The computer can distinguish words spoken through voice recognition. This speech recognition adds. Voice recognition programs do not recognize the bid. Voice recognition programs recognize only the terminology of free programmed words.The vocabulary of voice recognition programs can range from 2 words to millions of words. Your computer’s voice recognition program can distinguish between 2 million words.

Audio input

Audio input is the process of entering any voice in a computer such as speech, music or sound. Your personal computer should have a sound card to input high quality sound. You can input sound through multiple devices such as a microphone, tape player, CD player, or radio. Each of these devices connects to the port of the sound card.

Web cam

The web camera or web cam is a modern camera, images of which can be accessed on the web instant messaging or video calling application of a personal computer around the world. Web cameras usually come with software. Its software helps in setup and web camera usage.

Digital camera

Digital (DGCamus) is an electronic input device to capture and store photographs electronically in a computer, rather than using photographic film like traditional cameras. Modern compact digital cameras are typically multifunctional. Some digital cameras are capable of recording sound and making videos with photographs.

video conferencing

Video conferencing is a meeting and conversation between two or more people sitting geographically, who use the Internet to transfer network audio and video data. Video conferencing requires video conferencing software with microphone speakers and a video camera attached to your computer.In this, any image such as the face of the participant etc. is displayed in front of the video camera on the screen of each participant.