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WorksheetsVon Neuman architecture
Total questions: 39
Worksheet time: 24mins
What is the MAR?
(Memory Address Register)
A register that stores the memory location of data
A register that stores the data that is being moved to and from the memory
A register that stores address of the next instruction in need of execution
A register that stores results of Calculations.
What is the MDR?
(Memory Data Register)
A register that stores the memory location of data
A part of the CPU that controls data movements and their timings.
A register that stores the data that is being moved to and from the memory
Part of the CPU that carries out calculation (math equations and ones that involve logic gates) while also making decision on data that is sent to the CPU.
What is the PC?
(Program Counter)
Store's location of the current instruction, register in the CPU.
A part of the CPU that controls data movements and their timings.
This carries the data (but not the address) between the processors, the memory and the I/O devices.
A register that stores address of the next instruction in need of execution
What is the AC?
(Accumulator)
This carries the signals and commands from the CPU to control and co-ordinate the different activities within the computer system.
A register that stores results of Calculations.
A register that stores the memory location of data
Part of the CPU that carries out calculation (math equations and ones that involve logic gates) while also making decision on data that is sent to the CPU.
Which one of these is not a type of bus?
Address Bus
Data Bus
Memory Bus
Control Bus
What do we call a circuit designed to do one thing only and cannot be reprogrammed to do anything else?
A set of Headphones
A Fibonacci System
an Embedded system
A PC
A Phone
Select two disadvantage of an embedded system.
Embedded system errors are very difficult to rectify and resolve.
They are very compact with high speed.
They are very hard to backup.
They can be customized to producing more enhanced results.
What is the main feature of the von Neumann Computer architecture?
There is a single PRIMARY MEMORY for both data and instructions.
The model as a single CPU
The instructions are stored in PRIMARY MEMORY
Data is stored in SECONDARY STORAGE
What are the MAIN COMPONENTS of the CPU? (Tick all that are correct).
ALU
CU
Registers
Cache MEmory
BIOS
Which of these are REGISTERS in the CPU? (Tick ALL that are correct)
Accumulator
ALU
Program Counter
Memory Address Register
Control Bus Register
Tick all options that happen in the DECODE CYCLE?
PC is incremented
The Instruction at the MAR address is read from RAM
The PC value is copied to the MAR
The instruction in the IR is decoded by the CU
The value in the MDR is written to the address in the MAR.
Tick all options that happen in the EXECUTE CYCLE?
IR is incremented
The data at the MAR address is read from RAM
The ALU performs any calculations required on the ACC
The instruction in the IR is decoded by the CU
The value in the MDR is written to the address in the MAR.
What is Von Neumann Architecture?
A Computer
An Idea
What memory holds both the programs and data?
ROM
RAM
REM
RDM
What are data and instructions carried on?
Aeroplanes
Bikes
Buses
Cars
The ALU carries out calculations and logical comparisons.
True
False
Why is Harvard architecture not as popular as Von Neumann architecture?
Too boring
Too time consuming
Too expensive
Too complicated
Von Neumann only mentions a single register called the accumulator.
True
False
A register is a type of very fast, temporary memory, which can't hold a data value.
True
False
When the CPU needs to fetch an instruction or data from main memory (RAM), it is initially stored in the___.
RDM
ROM
ALU
MDR
The program counter is used to identify the location of the next instruction (or data) to be executed by the CPU.
True
False
According to the von Neumann model, _______ are stored in memory.
only data
only programs
data & programs
neither data nor programs
The Program Counter_______
Stores the address of the next instruction in memory
Stores the address of where the next item will be fetched from
Stores data fetched from memory, or waiting to be stored in memory
Stores the result of arithmetic calculations
The function of accumulator is ______________
Stores the address of the next instruction in memory
Stores the address of where the next item will be fetched from
Stores data fetched from memory, or waiting to be stored in memory
Stores the result of arithmetic calculations
The Control Unit _______
Controls the flow of data around the CPU and also decodes instructions
Only controls the flow of data around the CPU
Only decodes instructions
Controls how much power is directed to all components within the computer
The Arithmetic Logic Unit (ALU) _____
Carries out numerical calculations and logical decisions
Calculates the different items of number data stored within the Accumulator and converts them into logical decisions
Calculates graphic data as they are only found within GPU units.
Calculates the flow of execution in a program and decodes instructions into small steps to be carried out by the program counter.
Von Neumann architecture is relatively uncommon in today’s computers.
True
False
Von Neuman architecture is also known as a ‘stored program computer’.
True
False
It uses the same physical memory address for instructions and data.
Von Neumann Architecture
Harvard Architecture
Select two advantage of an embedded system.
Embedded system errors are very difficult to rectify and resolve.
They are very compact with high speed.
They are very hard to backup.
They can be customized to producing more enhanced results.
Select two disadvantages of an embedded system.
Embedded system errors are very difficult to rectify and resolve.
They are very compact with high speed.
They are very hard to backup.
They can be customized to producing more enhanced results.
Which one of these is a type of bus?
Address Bus
PC
Memory Bus
AC
