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English language 2

Lessons 5 - 6. English language 2. 5 - Input Devices - the Eyes of Your PC. Scanners input device peripheral flatbed film scanner (film negatives/35 mm slides) hand-held scanner pen scanner barcode scanners resolution (dpi) OCR (Optical Character Recognition).

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English language 2

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  1. Lessons 5 - 6 English language 2

  2. 5 - Input Devices - the Eyes of Your PC • Scanners • input device • peripheral • flatbed • film scanner (film negatives/35 mm slides) • hand-held scanner • pen scanner • barcode scanners • resolution (dpi) • OCR (Optical Character Recognition)

  3. 5 - Input Devices - the Eyes of Your PC • Digital Camera • flash memory card • Digital Video Cameras and Webcams • digital video (DV) camera • video editing software • web camera - webcam • video conferences • megapixels • USB/FireWire • 24-30 frames per second • headset

  4. 6 - Output Devices: Printers • Technical Details • printer • printout • printer driver • print spooler • resolution (dpi) • pages per minute (ppm) • print server

  5. 6 - Output Devices: Printers • Types of Printers • dot-matrix printer • pins • impact printing • ink-jet (bubble-jet) printer • cartridge • multi-function printers • laser printer • toner • page description language (PDL) • imagesetter • plotter

  6. Modal Verbs • should • We use should to talk about a good thing to do: You should be more careful! Should I wear a tie? You should not ( shouldn’t) drive fast in the rain. • The comparison of must and should: • We use must to talk about what is necessary. • I must get a new passport if I want to travel. • We use should to talk about what is good. • I should eat more fruit, although I do not like it.

  7. Modal Verbs • can and could • We use can to talk about someone’s ability to do something. I can speak Italian. Can you sing? I can read Spanish, but I cannot (can’t) speak it. • To talk about the past, we use could. His son could talk when he was onliy thirteen months old. Could you avoid such a situation? I could not (couldn’t) understand the professor yesterday.

  8. Modal Verbs • can and could • can does not have an infinitive or a past participle. • Instead we use (to) be able to or been able to + infinitive. I want to be able to speak English. I have never been able to play footbal. I wll be able to drive.

  9. Modal Verbs • can and could - requests • We can ask people to do things (make requests) with can you...? This is informal, and we often use it when we are talking to friends, and also in shops, restaurents, etc. Can you lend me a pencil, please? Can you bring me some more bread? • Could you...? is more formal and polite, and we often use it when we are talking to strangers, older people, teachers or bosses. Excuse me, Mr Smith, could you lend me a stamp? Could you possibly watch my luggage while I get a coffee?

  10. Questions?

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