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- m18
-
- O3
- RF0 0 639 479
- O1
- T5
- RE8 9 630 471
- O0
- T1
-
- te30 62 DEFAULT
- The yoke can deflect the beam to
- hit any chosen location on the
- screen.
- A pattern of control is
- applied. First, the beam is
- deflected to aim at the top left
- corner of the screen. Then it is
- moved from left to right. When it
- hits the right edge, it is turned
- off, and aimed at the left edge
- again, but a little bit lower.
- Then it is once again swept from
- left to right. This is repeated
- over and over again until the beam
- sweeps the bottom row from left to
- right. The whole procedure
- happens again and again 60 times
- a second.
-
- ~
- te333 62 DEFAULT
- A monochrome picture is entirely
- composed of dots, so anywhere there
- is to be a dot, the gun is turned
- on during its sweep, and where the
- picture is supposed to be dark, it
- is turned off. The dots slowly fade
- out. But if the picture stays the
- same, they are relit when the beam
- comes across again. If the picture
- changes, a new pattern of dots are
- lit up.
- If you have a CGA monitor, the
- graphics resolution is 640 dots
- across by 200 vertically. Each
- sweep of the gun can light up any
- of 640 locations from left to
- right. The gun makes a total of 200
- sweeps working from top to bottom.
- ~
-