io interrupt

Question 1

RS232

Answer 1

serial communication transmission of data
exchange data
character based user interface
no application logic

Question 2

Ascii terminals and input modes

Answer 2

Terminal Driver Preprocessing . determines how user inputs are handled wheter character by character or line by line

Question 3

Raw Mode (Non-Canonical Mode)

Answer 3

Each character entered on the keyboard is transmitted immediately and exactly as typed

Question 4

cooked mode ( canonical Mode)

Answer 4

canonical mode-line oriented mode
line by line
input is buffered until a newline character(Return Key

Question 5

graphic hardware

Answer 5

component of modern computing,enabling rendering of images,videos, and animation on display
-store frame buffer,textures,vertex data
fast dedicated memory access for the GPU
++ reduce latency direct access

Question 6

hybrid Model

Answer 6

combination of VRAM and System Memory
utilizes dedicated graphics memory for critical high speed tasks
++ balances the high speed access of vram with the larger storage capacity of system RAM