3 The processor Flashcards
<p>What are electrical devices?</p>
<p>Electrical devices only need electricity to work.</p>
<p>What are electronic devices?</p>
<p>Means that there are circuits in the device that control the flow of electricity in another circuit.</p>
<p>High and low example.</p>
<p>3 volts for high voltage and 0 for low voltage.</p>
<p>Not gate input 1. What is the output?</p>
<p>The output is 0</p>
XOR gate inputs: i. 1 0 ii. 1 1 iii. 0 0 What is the output.
i. 1
ii. 0
iii. 0
NAND gate inputs:
i. 1 0
ii. 1 1
What is the output.
I. 1
II. 0
NOR gate inputs:
i. 0 0
ii. 0 1
What is the output.
i. 1
ii. 0
What is a premises.
The statement you begin with in a logical gate is a premises.
Give two example of connectors.
XOR, NAND.
The two main components of the processor.
CPU and Main Memory.
The two main components of the CPU.
The Arithmetic and Logic Unit ALU w` .0here all the processing happens.
The Control Unit Tells the ALU what to process.
The other names that the main memory is also called.
main store, primary memory, primary store, random access memory (RAM) or Immediate Access Store (IAS)
What is the difference between connectors and gates?
These terms are similar.
Where does all the processing happen in a CPU?
In the ALU.
What does Arithmetic processing mean?
It means finding the numerical answer to mathematical problems.
What does logical processing mean?
It means finding the true/false answer to logical deduction.
What does the control unit do in a CPU.
The control unit tells the ALU what to process.
What are the three types of peripherals?
Input; output; storage.
What two types of work does the ALU carry out?
Arithmetic processing and Logical processing.
How does the fetch execute cycle work?
First it fetches the data.
Secondly, Decodes the data.
Finally, it executes it.
Where does the storage store its data in a processor.
The storage in a processor stores data in instruction registers.
What are registers?
Registers are small areas of fast memory inside the CPU.
What are general registers or accumulators used as?
They are used for fast memory.
List the types of registers other than the general registers.
The program counter (PC) holds the address of the next instruction to fetch.
The memory address register (MAR) holds an address to read from or wide
The instruction register (IR) holds the instruction currently being executed.
The memory data register (MDR) holds data just read from memory or about to be written.
