3 The processor

Question 1

<p>What are electrical devices?</p>

Answer 1

<p>Electrical devices only need electricity to work.</p>

Question 2

<p>What are electronic devices?</p>

Answer 2

<p>Means that there are circuits in the device that control the flow of electricity in another circuit.</p>

Question 3

<p>High and low example.</p>

Answer 3

<p>3 volts for high voltage and 0 for low voltage.</p>

Question 4

<p>Not gate input 1. What is the output?</p>

Answer 4

<p>The output is 0</p>

Question 5

XOR gate inputs:
i. 1   0
ii. 1   1
iii. 0   0
What is the output.

Answer 5

i. 1
ii. 0
iii. 0

Question 6

NAND gate inputs:
i. 1 0
ii. 1 1
What is the output.

Answer 6

I. 1

II. 0

Question 7

NOR gate inputs:
i. 0 0
ii. 0 1
What is the output.

Answer 7

i. 1

ii. 0

Question 8

What is a premises.

Answer 8

The statement you begin with in a logical gate is a premises.

Question 9

Give two example of connectors.

Answer 9

XOR, NAND.

Question 10

The two main components of the processor.

Answer 10

CPU and Main Memory.

Question 11

The two main components of the CPU.

Answer 11

The Arithmetic and Logic Unit ALU w` .0here all the processing happens.
The Control Unit Tells the ALU what to process.

Question 12

The other names that the main memory is also called.

Answer 12

main store, primary memory, primary store, random access memory (RAM) or Immediate Access Store (IAS)

Question 13

What is the difference between connectors and gates?

Answer 13

These terms are similar.

Question 14

Where does all the processing happen in a CPU?

Answer 14

In the ALU.

Question 15

What does Arithmetic processing mean?

Answer 15

It means finding the numerical answer to mathematical problems.

Question 16

What does logical processing mean?

Answer 16

It means finding the true/false answer to logical deduction.

Question 17

What does the control unit do in a CPU.

Answer 17

The control unit tells the ALU what to process.

Question 18

What are the three types of peripherals?

Answer 18

Input; output; storage.

Question 19

What two types of work does the ALU carry out?

Answer 19

Arithmetic processing and Logical processing.

Question 20

How does the fetch execute cycle work?

Answer 20

First it fetches the data.
Secondly, Decodes the data.
Finally, it executes it.

Question 21

Where does the storage store its data in a processor.

Answer 21

The storage in a processor stores data in instruction registers.

Question 22

What are registers?

Answer 22

Registers are small areas of fast memory inside the CPU.

Question 23

What are general registers or accumulators used as?

Answer 23

They are used for fast memory.

Question 24

List the types of registers other than the general registers.

Answer 24

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.