A OUTPUT DEVICES Flashcards
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WHAT IS AN OUTPUT DEVICE?
AN OUTPUT DEVICE IS ALWAYS HARDWARE THAT RECEIVES INFORMATION FROM AND INPUT DEVICE AND DISPLAYS IT.
WHAT DIFFERENT OUTPUT DEVICES ARE THERE?
SCREEN, PRINTER, SPEAKER, HEADPHONES, PROJECTOR,
WHAT ARE THE DIFFERENT WAYS TO DISPLAY INFORMATION?
IMAGES, AUDIO FILES (MP3s), VIDEO FILES (MP4s),
WHAT IS AN IMAGE?
AN IMAGE IS A LOT OF TINY PIXELS FORMED IN NEAT ROWS AND COLUMNS THAT COLOURS THAT CAN
WHAT IS AN AUDIO FILE (MP3s)?
AN AUDIO FILE IS A FILE FORMAT STORING DIGITAL AUDIO DATA ON A COMPUTER SYSTEM
WHAT IS A VIDEO FILE (MP4s)?
A VIDEO FILE IS A FILE FORMAT STORING STRONG DIGITAL VIDEO DATA
WHAT IS PERIPHERAL?
AN EXTENDED DEVICE THAT IS CONNECTED TO A COMPUTER
WHAT IS A SOFT COPY?
DATA AND INFORMATION THAT IS VIRTUAL
WHAT IS A HARD COPY?
DATA AND INFORMATION THAT IS PHYSICAL
WHAT IS A FOOTPRINT?
THE SPACE TAKEN UP BY PERIPHERAL
WHAT ARE PIXELS?
PIXELS ARE SHORT FOR PICTURE ELEMENT; THEY ARE ILLUMINATED DOTS; MANY PIXELS TOGETHER FORM AN IMAGE
WHAT IS A RESOLUTION?
RESOLUTION IS THE NUMBER OF PIXELS DISPLAYED
WHAT DOES LED STAND FOR
LIQUID EMITTING DISPLAY
WHAT DOES LCD STAND FOR
LIQUID CRYSTAL DISPLAY
WHAT IS DPI
DOTS-PER-INCH WHICH JUST MEANS THE RESOLUTION OF A PRINTED IMAGE
WHAT IS AN INKJET PRINTER?
AN INKJET USES INK TO PRINT INFORMATION. THE INK IS PROVIDED IN A CARTRIDGE AND IS SPRAYED THROUGH MICROSCOPIC NOZZLES ONTO PAPER. COLOUR INKJET PRINTERS OFTEN HAVE 4 CARTRIDGES, ONE FOR EACH CMYK COLOUR
WHAT IS A LASER PRINTER?
A LASER PRINTER USES A SPECIAL POWDER CALLED TONER TO PRINT OUT THE INFORMATION. THE TONER IS PROVIDED IN A CARTRIDGE. COLOUR LASER PRINTERS OFTEN HAVE 4, ONE FOR EACH CMYK CARTRIDGE.
WHAT ARE THE DIFFERENCES BETWEEN A LASER AND INKJET PRINTER?
INKJET USES INK AND LASER USES A SPECIAL POWDER.
WHAT DOES CAD STAND FOR?
COMPUTER AIDED DESIGN WHICH IS JUST SOFTWARE THAT ALLOWS A USER TO DESIGN AND CREATE AN IMAGE OF AN OBJECT
WHAT DOES CAM STAND FOR?
COMPUTER AIDED MANUFACTURING WHICH IS JUST A COMPUTER THAT CONTROLS MACHINERY TO MANUFACTURE AN OBJECT
WHAT DOES CNC STAND FOR?
COMPUTER NUMERICAL CONTROL WHICH IS JUST THE METHOD OF CONTROL USED BY CAM
WHAT ARE SPEAKER/HEADPHONES?
SPEAKERS ARE A DEVICE USED TO OUTPUT SOUND, FOR SOUND TO BE OUTPUT, THE DIGITAL SOUND FILE NEEDS TO BE CONVERTED, TO ANALOGUE, SIGNAL VIA THE USE OF A DIGITAL TO ANALOGUE CONVERTER
WHAT DOES DAC STAND FOR?
DIGITAL ANALOGUE CONVERTER WHICH IS A DEVICE THAT CONVERTS DIGITAL SIGNALS TO ANALOGUE
