What is the difference between an input and output device?
What Is the Difference Between Input & Output Devices?
- Computing Sequence. In computing, data input comes before data output. ...
- Common Input Devices. Common input devices include mouse, keyboard, scanner, microphone and web-cam. ...
- Common Output Devices. ...
- Accessibility. ...
- Physical Attributes and Price. ...
What are the types of input and output devices?
- Monitor (Display unit)
- Printer
- Speaker
- Projector
- Headphones
- Sound Card
- Video Card
- GPS System
What are some examples of input and output devices?
- Input Devices
- Keyboard. The keyboard is the most frequent and widely used input device for entering data into a computer. ...
- Mouse. The most common pointing device is the mouse. ...
- Joystick. A joystick is a pointing device that is used to move the cursor on a computer screen. ...
- Light Pen. ...
- Scanner. ...
- OCR. ...
- Bar Code Reader. ...
- Web Camera. ...
- Output Devices
What is the role of input and output devices?
- The data-in register is read by the host for getting input.
- The data-out register is written by the host for sending output.
- The status register holds bits which can be read by the host.
- The control register is written by the host for starting a command or for changing the mode of any device.
- The data registers are usually 1 to 4 bytes in size. ...
What is input and output devices?
An input device is something you connect to a computer that sends information into the computer. An output device is something you connect to a computer that has information sent to it.
What is input device in computer PDF?
• Any peripheral (piece of computer hardware. equipment) used to provide data and control signals to a computer. • Allows the user to put data into the computer.
What is the difference between input and output devices PDF?
An input device sends information to a computer system for processing, and an output device 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.
What is input and output device explain with example?
The devices that are used in the computer to input raw data for the purpose of processing are called input devices. For eg. Keyboard , Mouse , Joystick ,Touchpad. An output device is any piece of computer hardware equipment which converts information into human-readable form. It can be text, graphics, tactile, audio.17-Oct-2018
What is a output device?
An output device allows data to be transmitted by the computer in a human-friendly form, for example, sound being played through a speaker. Monitor - The main output device of a computer. It forms images by converting electrical energy into light in the form of tiny dots on the screen called pixels.
What are output devices explain?
An output device is any piece of computer hardware equipment which converts information into a human-perceptible form or, historically, into a physical machine-readable form for use with other non-computerized equipment. It can be text, graphics, tactile, audio, or video.
What are the 5 output devices?
The various output devices are:Monitor. A computer's principal output device is a monitor, often known as a Visual Display Unit (VDU). ... Printer. Printers are information output devices that allow you to print data on paper. ... Plotter. ... Projector. ... Speakers. ... Headphones. ... Sound Card. ... Video Card.More items...•17-Aug-2021
What are the 10 examples of input devices?
10 Examples of Input DevicesKeyboard.Mouse.Touchpad.Scanner.Digital Camera.Microphone.Joystick.Graphic Tablet.More items...•05-Jan-2022
What are 5 input devices and 5 output devices?
Keyboards, mouse, scanners, etc are some of the input devices while printers, monitors, headphones, etc are some of the output devices. Another important element of a hardware system is computer memory....Output Devices of ComputerMonitors. ... Printers. ... Speakers. ... Projector. ... Plotter. ... Braille Reader. ... Television. ... Video Card.More items...
What is a pen drive?
pen drive is another name for a USB flash drive. Other names are flash drive. USB flash drive, Thumb drive, etc. They are devices that allow storage of computer files that you can remove and take from computer to computer. The price of the driver is determined by the size of its memory measured in megabytes or gigabytes. While 128 megabyte drivers used to be considered large, current pen drivers sizes can reach 1,2,4 or more gigabytes. The drivers inserted in the computers USB ports and are automatically recognized on PC operating systems beyond Windows 98 (which needs a separate installation of drivers). Pen drives can also have full blown application on them which are written in what is called U3 compatible software.
What is unit 4?
The unit 4 presents the information of input and output devices. A number of input/output devices are used with many types of microcomputers. Many of these are less complex versions of I/O devices that have been available for larger computer systems. The principal difference is that because they are intended for use with microcomputers, they are significantly slower and substantially cheaper. Few of these devices are discussed in this unit.
How does a CRT monitor work?
The monitor, utilizes a cathode ray tube (CRT). CRT monitors generally produce images by the raster-scan method. In this method, an electron beam varying in intensity, is moved back and forth horizontally across the face of the monitor. As the beam is directed to each spot on the phosphor-coated screen, it illuminates the spot in proportion to the voltage applied to the beam. Each spot represents a picture element or pixel. When the electron beam has scanned the entire screen and illuminated each pixel, one can see a complete image. The image that can be seen is the one traced on the retinas of eyes by the light beam. However, this image will fade unless it is refreshed. Thus, the electron beam must scan the screen very rapidly (a minimum of 60 times per second), so that the intensity of the image remains approximately the same and the screen does not appear to flicker.
How big is a CD-ROM?
Short for Compact Disc-Read-only Memory, a type of optical disk capable of shorting large amounts of data up to 1GB, although the most common size is 650 MB (megabyte). A single CD-ROM has the storage capacity to 700 floppy disks, enough memory to store about 300,000 text pages. CD-ROMs are stamped by the vendor, and once stamped, they cannot be erased and filled with new data. To read a CD, you need a CD-ROM player. All CD-ROMs comform to a standard size and format, so you can load any type of CD-ROM into any CD-ROM player. In addition, CD-ROM players are capable of playing audio CDs, which share the same technology. CD-ROMs are particularly well-suited to information that requires large storage capacity. This includes large software applications that support color, graphics, sound, and especially video and are well suitable for tutoring,
What are input and output devices?
Input/output devices constitute a major part of a computer system. These are also called peripheral devices. Without I/O devices, a user cannot communicate with the computer. They are required to enter data and instructions in a computer so that the computer can process that data and provide the result to the user through output devices. In computer, inputs are the signals and data received by the system and outputs are the signals and data which are generated from the system.
What is input in computer?
Inputs are data or signals received by the computer system. An Input unit takes the input and converts it into binary form, so that it can be understood by the computer
What is digital camera?
Digital camera is an electronic device which takes video or still photographs or both, digitally by recording images via an electronic image sensor. Digital cameras can do things which film cameras can’t, for example displaying images on screen immediately after they are recorded.
What is touch screen?
Touch screens are monitors / electronic visual display screens which detect where they are being touched. The user makes selections by directly touching the screen, rather than moving a cursor to the point on the screen with a mouse or joystick Now days touch screens are being used in ATM machines for making it user friendly and Kiosk machines are used for guiding the travelers about their travel plans. Touch screens are also used in many of the modern cell phones.
What is a pick device?
Pick devices are used to select an object on the screen. The selected object can be text or graphics. Examples of pick devices are light pens and touch screens.
What is a joystick?
Joystick is a remote control device for a computer which is used for playing video games to indicate the position. It has a stick that pivots on a base and is used for controlling the action in video games. The User moves a spherical ball with the help of a stick in the joystick as opposed to the trackball where fingers are used for moving the ball.
What is the most common input device used for entering data and information into the computer system?
It is the most common input device used for entering data and information into the computer system. This is the standard input device attached to all computers. The keyboard is a primary device for inputting text by pressing a set of keys. All the keys are neatly mounted in a keyboard connected to the computer system. Keyboard devices can be classified into two types general purpose keyboards and special purpose keyboards. General purpose keyboard are standard keyboards used with most computer system. They are called general purpose because that have enough keys to make them useful for any type of application. The layout of keyboard is just like the traditional typewriter of the type QWERTY. It also contains some extra command keys and function keys. It contains a total of 101 to 104 keys. You have to press a correct combination of keys to input data. The computer can recognize the electrical signals corresponding to the correct key combination and processing is done accordingly.
What is OCR in text?
Optical Character Recognition (OCR) is a software technology thatcan convert images of text into an actual text file that can then beedited (e.g. using word-processing software). The result is just as if thetext had been typed in by hand.
What is touch screen?
touch screen is an alternative to a separate pointing device. With atouch screen the user selects items on the screen by touching thesurface. This makes touch screen systems very intuitive and simpleto use.
How many pages does a laser printer last?
A single toner cartridge will often last for 5,000-10,000 pages ofprinting.
What is pointing device?
pointing device found on most laptops. Used instead of a mousesince it takes up less space. The user moves a finger across the touchpad and this movement data is sent to the computer.
Do credit cards have magnetic strip?
Modern credit cards and ID cards don’t use a magnetic strip. Insteadthey have a tiny ‘chip’ of computer memory embedded inside them.(These cards are often referred to as smart cards.)