Data Representation Flashcards
What happens when the number of bits in the mantissa are increased
it increases the precision of the number
What happens when the number of bits in the exponent are increased
The range of numbers increases
What are two advantages of vector graphics
Objects can be scaled larger without pixelating
File sizes are usually smaller
what are two disadvantages of vector graphics
difficult to create photorealistic images as can only work with objects
adding extra objects increases file size
What are two advantages of bitmapped graphics
can edit down to the individual pixel
adding extra detail does not increase file size
disadvantages of bitmapped graphics
large file size as every pixel must be stored individually
when scales larger pictures pixelate as they are resolution dependent
What is the function of the control Unit
it fetches decodes and executes instructions by sending signals to other parts of the computer.
what is the function of the arithmetic logic unit
where arithmetic and logical operations are carried out
what is the function of registers
temporary storage inside the processor for holding data being fetched or holding instruction being decoded.
what is the advantage of storing data in registers
because the data is stored in the processor its self it is accessed much faster than from main memory
what is the function of the address bus
it is used by the processor to identify the memory location being accessed. it is a one way bus.
what is the function of the data bus
use to transfer data between the memory and processor and vice versa. it is a two way bus.
what is the function of the control bus
it is used to identify and initiate the instruction to be carried out
