1.1.1 Systems Architecture Flashcards
True or False: The clock speed of a CPU is measured in Hertz (for example, 1.8GHz)
True
What is the name of the cycles that the CPU completes? (Each cycle is where the CPU carries out one instruction.)
Every time a CPU completes an instruction is called a Fetch-Execute cycle.
True or False: The ALU (Arithmetic and Logic Unit) is contained within the CPU.
True
True or False: The RAM is contained within the CPU.
False
True or False: The cache (sometimes also known as the Immediate Access Store) is contained within the CPU.
True
True or False: The Control Unit is contained within the CPU.
True
True or False: The Registers (called the MDR and the MAR) are contained within the CPU.
True
What is the Accumulator?
It is a memory store used by the ALU to store data for further processing.
What does the Control Unit do?
The Control Unit includes the Program Counter, which organises and holds all the next instructions and memory addresses, so that the instructions are managed and run in order.
What kind of Register is the MDR?
It is the Memory Data Register (MDR), for storing the data to be used for a future instruction.
What kind of Register is the MAR?
It is the Memory Address Register (MAR), for storing the address where future instruction or data will be found in memory.
What is the name of the computer architecture that is used in modern computers?
Von Neumann
True or False: The MAR register stores the data that is used for a future CPU cycle.
False. The MAR stores the address of something in memory to be used for a future cycle.
True or False: The MDR register stores the data that is used for a future CPU cycle.
True
