Screens & 2D Graphics

The PDP-1 from 1960 is a representation of early computing with ___

• graphics
• sound
• touch screen
• speech recognition

Early computer screens had difficulty rendering...

• graphics
• colors
• crisp text
• pixels

What was a typical use for early computer screens?

• program output
• video games
• render high-resolution images
• keep track of a program's operation

What were the earliest and most influential display technologies?

• LCDs
• LEDs
• CRTs
• OLEDs

Electrons are directed at a phosphor-coated screen in CRTs to ___

• charge the battery
• make it glow
• clean the screen
• cool the device

What method involves directing the electron beam to trace out shapes on a CRT?

• raster scanning
• vector scanning
• pixel scanning
• CRT scanning

Raster scanning on a CRT can display shapes and text made of...

• dots
• pixels
• little line segments
• colors

Why didn't most early computers use pixels?

• screens couldn't display them
• consumed too much memory
• too hard to program
• not invented yet

How many bits of memory would a black or white 200x200 pixel image consume?

• 80,000 bits
• 160,000 bits
• 20,000 bits
• 40,000 bits

What was the first graphics card called?

• character generator
• ROM manager
• screen buffer manager
• dot matrix manager