Von Neumann Architecture

The purpose of the CPU is to process ​ (a)   . The CPU is where processes such as ​ (b)   , ​ (c)   and ​ (d)   take place. Whatever is done on our computers, such as ​ (e)   , playing games and doing homework, the CPU has processed the data we use.

• data
• calculating
• sorting
• searching
• checking emails
• registration
• numbers
• hexadecimal

The Control Unit provides several functions:

it ​ (a)   , ​ (b)   and ​ (c)   instructions and it issues control signals that control hardware. It also moves ​ (d)   around the system.

• fetches
• decodes
• executes
• data
• switches
• binary
• prints
• imports
• exports

Match the following

• Data and instructions are stored as ______

• Control Unit

• performs artithmetic operations

• Binary

• A high speed internal connection

• Bus

• Moves data around the system

• ALU

• A small amount of high speed RAM

• Cache

Put the following in size order

• 1 bit

• 1 kilobyte

• 2 bytes

• 18 bits

• 5 nibbles

What does MDR Stand for

• Mega Data Randomiser

• Memory Data Register

• Meta Data Register

• Memory Digital Randomiser

Which of these registers holds the address of the next instruction to be carried out.

• MDR

• MAR

• ACC

• CU

• ALU

Reorder the following

• Program Counter incremented by 1

• Instruction in MAR is sent to MDR

• Data held in MDR is copied to CIR

• Address copied into MAR

• Processor sends a signal to the MAR

Computers work in ​ (a)   . All data must be converted into ​ (b)   in order for a computer to ​ (c)   it. Sound is no exception. To do this, sound is captured - usually by a ​ (d)   - and then converted into a ​ (e)   signal.

• binary
• process
• microphone
• digital
• analogue
• speaker
• hexadecimal
• denary
• headphones
• frequency

An analogue-to-digital converter will capture a sound wave at regular time intervals. This recording is known as a ​ (a)   .

• sample
• wavelength
• amplitude
• sequence
• record player

Samples measure what?

• The amplitude of a sound wave

• colour depth

• frequency

• binary