() (). ( , ), .
, ( - (), ).
.
: , , , . .
, .
: 10 21 ( 14 ).
. () 25 , - . 70 - 80 ; 40 - 50 .
, , (, 50 - 120 30 - 60 ).
, , , . . . ( , , ).
. : .
ASCII, ( , , , ).
, (pixel picture element).
.
, . , , , .
|
|
: 640x480, 800x600, 1024x768, 1600x1200, .
, , (, dot pitch) . , , , . 0,41 0,18 .
, (, 14 265 , 1024 265/1024 = 0,22 , ).
IBM PC , , .
. , .
:
, , ; ;
, ( , , : ).
. :
, , ;
RGB- , , , , (RGB Red-Green-Blue --, , ). RGB- .
, , .
: CD (Color Display ), ECD (Enhanced CD ) PGS (Professional Grafics System - ) . (. 4.9).
4.9. IBM PC
CD | ECD | PGS | |
, , ´ | 640´200 | 800´600 | 1024´768 |
, , | |||
, | |||
* | CGA | EGA | VGA |
. * .
- "paper white" ( ); SVGA: 1280x1024 .
|
|
: ( : , ); ( , LR (Low Radiation); AS (Anti Static); G (Green) .
() , . : , (, ), ( ), -.
: ( ), ( ), ( ), ( ), ( , ), ( , ), , , .
, . , , , (, 65 . , High Color, 2- , 16,7 . , True Color, 3- ). , .
4.16. 800x600 True Color 1440000 .
:
Hercules ;
MDA (Monochrome Display Adapter) ;
MGA (Monochrome Graphics Adapter) ;
CGA (Color Graphics Adapter) ;
EGA (Enhanced Graphics Adapter) ;
VGA (Video Graphics Adapter) , (Video Graphics Array);
SVGA (Super VGA) ;
PGA (Professional GA) .
. 4.10.
4.10. IBM PC
SVGA VESA ( VESA) 1-2 1280x1024 ; Twin Turbo-128M2 2 ( 4 ), 64- ( PCI 128- , 256 65000 ), .
|
|
( ) , ASCII- (, , ..) .
, 1000 . :
(- );
( );
(, , , );
(, ) (, );
( (375 - 450 ) (250 ) );
(80 132 - 136 );
( ASCII);
;
, dpi (dots per inch) .
; , , , , , .
, , ( ""), () .
, , . 10-300 ./ ( ) 500-1000 ./ ( 20) ( ); 3 - 5 30-40 ( ).
( ); : , , , , ( ), ( ) ( 100 ) .
. , - , , . " " , .
.
, , .
, .
() , . . , . , . . 9 . 7x9 9x9 . 18 24.
.
|
|
, :
(Draft);
, (NLQ Near-Letter-Quality);
(LQ Letter-Quality);
(SLQ Super Letter-Quality).
. LQ SLQ .
-. 9- Draft . , . NLQ : , ; . .
, , , roman ( ), italic (), bold-face (), expanded (), elite (), condenced (), pica ( ), courier (), san serif ( ), serif (), prestige elite (-) ( , , ).
, / .
Draft 100-300 /, ( ).
. , (, , ).
. , (). . 12 64 . : , 20 / 500 ./ , . .
. , . , . (), , .
50 / (1200 dpi) 1000 ./. . , Tektronix () Phaser 550 , 1200 dpi; 5 4 , 14 ./.
, . ( ) . , Centronics . (2 .) ( 1 ) , RS-232C ( 2). , . .
. , ( 30%) Seiko Epson (. 4.11). (ESC/P) . Star Micronics, Hewlett Packard, Xerox, Mannesmann, Citizen, Panasonic .
|
|
4.11. Epson
LX-100 | LX-1050 | DFX-5000 | LQ-100 | LQ-870 LQ-1170 | LQ-860* LQ-1060 | SQ-870 SQ-1170 | EPL-5000 EPL-5200 | |
, ./ | 6 ./ | |||||||
4 | A3 | A3 | 4 | A3 | A3 | A3 | 4 | |
, | , 50 | , 50 | , 250 |
* LQ-860 LQ-1060 .
. , , , , .
" ". , .
, . - .
- . , , . 16, 64 256 .
-, . , .
RGB: RGB- ; , , . 256 65536 ( High Color) 16,7 . ( True Color).
75 1600 dpi (dot per inch).
. , , , .
: . ( 105 ). , . . 5-50 / ( ).
4.17. Mustek: GS-400L - , CG-8400T .
; ; , () . 2-10 ( 4).
4.18. : Mustek Paragon 1200, Epson ES1200, HP Scan Jet 11CX.
; , , .
4.19. Mustek SF-630, 10 .
, , . .
, , .
: .
( ), . , . , , .. .
, . , 1 4 (204x297 ) 10 / ( ) 1 , 16 4 , ( High Color 65536 ) 16 . , True Color 50 / . , , , TIFF (Tag Image File Format), CTIFF (Compressed TIFF), JPEG, PCX, GIF (Graphics Interchange Format ) . ( ).
, OCR (Optical Character Recognition). OCR () ( ) ASCII-, .
OCR . , (, () ), ( ) . : . , OCR TIGER 2.0 30 , .
Omnifont, , . , , .
. , , TWAIN. TWAIN- TWAIN , Corel Draw, Max Mate, Picture Publisher, Adobe Photo Shop, Photo Finish. SCSI.