CS Sys Arc

Computer programs ,data and windows format exchange programs are using are stored in the same memory

A computer design where data and instructions are stored in the same memory

Fetch – Decipher – Execute

Fetch – Decode – Execute

Arithmetic Logic Unit

Arranging Logic Unit

Arithmetic Language Unit

where the actual calculations are done

where the actual processing is done

PC

MAR

MDR

MCR

The MAR holds the memory address of the current instruction, and then the data that it uses, so that these can be fetched from memory, but MDR holds the instruction, then the data.

The MAR holds the memory instruction and then the data that it uses, so that these can be fetched from memory, but MDR holds the memory address , then the data.

To fetch and execute instructions stored in CU

To fetch and execute instructions stored in memory

•A special fast memory location in the CPU

•A special fast memory location in the GPU

•A special fast processor location in the CPU

•PC, MAR, MDR, Accumulator

•PC, MAR, MDR, ACR

•PC, MAR, MDR, ALC

Arithmetic operations

•addition, subtraction, multiplication, division

Logical operations

•comparing one data item to another: is it smaller than, greater than or equal to

Arithmetic operations

addition, subtraction, multiplication, division

Logical operations

comparing one data item to another: is it smaller than, greater than or equal to

Ray Tracing

Some chips have CU to help with reflective calculations