Input devices for everyday use
Input devices are what is used to put data into the computer. Without them you could not tell the computer what to do.
Keyboard - The keyboard is the most commonly used device for inputting letters or ________ into different applications or programs. It also has special keys that help operate the computer. Some keyboards are specially designed to help people with ___________.
Mouse - The mouse is a very user-friendly device used to open and close files, _________ web sites, to control a pointer and to ______ items by clicking on them.
Digital Camera - A digital camera can be used to _______ pictures and _______ video clips. The user can look at pictures that have been taken and ______ the pictures he does not like. It can be hooked up to a computer to _______ the pictures from the camera to the computer.
Web camera – it is used during live _______ and video conferencing. The web camera transmits a picture from one computer to another, or can be used to record a short video. Webcams do not allow you to save the images like ______ video cameras do. Video conferencing is a system that enables people in various places around the world to have a ________ by seeing and hearing each other on a screen. It is achieved by using ________, webcams and monitors.
Microphone - A microphone is used to record _______. The sound is then saved as a _________ on the computer. It can be used along with voice recognition software to enter text. The software is "trained" to recognise the way a user speaks and then ______ the sounds into text. When using a microphone the computer needs to be fitted with a ________. This contains a processor and RAM used specifically for converting _______ sound to digital and for improving the quality of audio output.
Scanner - A scanner is used to copy different things and ______ them as files on the computer. This includes pictures, photographs and text. Text can be recognised by Optical Character Recognition (OCR) software that examines a ______ image for letters and other characters that it recognises and then converts it into a document that you can _____.
Exercise 19. Agree or disagree with following statements. If you disagree, justify your answer.
When using a microphone the computer needs to be fitted with graphics card.
Webcams are used for video conferencing.
LCD stands for laser compact disk.
Inkjet printers are cheaper than laser ones but their running cost is higher.
Scanner copies pictures and text and produces a printout off whatever is on the monitor.
LCD, CD and DVD can be both input and output devices.
Speakers can be either built into the computer or separate.
Digital camera can be hooked up to a computer to delete the pictures you don’t like.
The mouse is used only to control a pointer.
You can output sound from the computer by using speakers, a microphone and headphones,
VII. Oral Practice
Exercise 20. Fill in the table using the information from ex.16 and ex.18:
|
Picture |
Name |
Type |
Description, application |
|
|
webcam |
input |
- transmit pictures; -record short video clips; -live conversation,_____________; |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Exercise 22. Speak about commonly used input and output devices using the table from ex.21
Play-time
Find 10 terms in the lines
bhsnavcmldpdhbxkdfofjdnmfglkvjkfcigmspeakerbxzkkdoeybfmgfmgjkfpdjfngdgqerybxvgjjklfydbuffervstepfnhwyeotpdgazcnjldyerulhnxvstreukeyboardgwieopdgfnzcksutbxsrtyopmnbbghjutedxvgaqevcgsrrheadphonesapjcnbgjkzbfttuwmsdjoyfbtvdigitalcadwuirhfetubvcgjzlyrbcoifnakofuqytmbxreuthdnperipheraldflabmzgtruwjhgfwxcbnbmpouyttefghknbyendskjgfhinkjetbdjgeipaberysbchjopiuytrebytxcfkwqasdfgghnfmdhkflgconvertawiuqrmnhfgtiujvxbfhyrinvntypewriternflpdsoahettbfmousevanxvdvdruy