Forth 2 Flashcards
(44 cards)
how does von neumann store data and instructions
in the same memory
can the cpu fetch data and instruction at the same time in Von Neumann
No
Why can’t the cpu fetch data and instruction at the same time in Von Neumann
Because they are stored in the same memory
can the CPU fetch data and instruction at the same time in Harvard
Yes
Why can the CPU fetch data and instruction at the same time in Harvard
because they are stored in separate memory units
How does harvard store data and instructions
separately
in von neumann, is it common or a separate bus for data and instruction transfer
a common one
in harvard, is it common or a separate bus for data and instruction transfer ?
a separate one
How many clock cycles are required to execute single instruction in von neumann?
2
How many clock cycles are required to execute single instruction in harvard?
1
The components of von neumann
CPU : ALU / CU / Registers and buses
The components of harvard
Program Counter
ALU / CU / Operational Registers
I/O Systems
and buses
von neumann buses
Adress Bus – Data Bus – Control Bus
Harvard buses
Data Bus – Data Adress Bus –
Instruction Bus – Instruction Address Bus
von neumann registers
MAR – MDR – AC – PC – CIR
how are harvard’s registers
operational
exemples of harvard registers?
Memory Address Register
Memory Data Register
who is slower
von neumann
who is faster
harvard
who is cheaper
von neumann
who is more expensive
harvard
What does CPU stand for
Central Processing Unit
what is the CPU referred as
microprocessor or processor
what is the CPU responsible for
it’s an electronic circuit responsible for executing the instructions of a computer program.
