Everything except number systems

Question 1

List the arithmetic operations

Answer 1

1) Addition
2) Subtraction
3) Multiplication
4) Division

Question 2

List the logical operations

Answer 2

1) Evaluates conditions
2) Makes comparisons
3) can compare numbers, letters and special figures

Question 3

What is the bus line

Answer 3

Paths that transport electrical signals

Question 4

What two places do the instructions of the CPU come from

Answer 4

1) Register
2) RAM

Question 5

What are the three main factors that affect how quickly a CPU carries out instructions

Answer 5

1) Clock speed
2) Cores
3) Cache

Question 6

What is cache

Answer 6

The cache is a small amount on memory located even closer to the CPU than the RAM.

Question 7

What is a core

Answer 7

A core is a small CPU or processor built into a big CPU or CPU socket.

Question 8

What is a core responsible for

Answer 8

It is responsible for executing programs and multiple other actions on a computer.

Question 9

What is word size

Answer 9

The amount of data that a computer can fetch and use in one cycle

Question 10

What are the types of storage

Answer 10

1) Secondary
2) Memory
3) Registers

Question 11

Explain what secondary is (storage)

Answer 11

Data that will be used long-term

Question 12

Explain what memory is (storage)

Answer 12

Temporary data stored, it can be accessed faster than storage.

Question 13

Explain what registers are

Answer 13

Data immediately related to the operation being executed, it has a faster access than both memory and storage.

Question 14

What are the two main types of memory

Answer 14

RAM and ROM

Question 15

What does RAM stand for

Answer 15

Random Access Memory

Question 16

What does ROM stand for

Answer 16

Read only memory

Question 17

What are certain features of RAM

Answer 17

1) Keeps the instructions and data for current program
2) Data in memory can be randomly accessed
3) Easy and speedy access
4) Volatile

Question 18

What are certain features of ROM

Answer 18

1) Non-volatile
2) Instructions for booting the computer
3) Data and instructions can be read but not modified

Question 19

NAND gate rule

Answer 19

anything apart from 1 and 1 is 1

Question 20

NOR gate rule

Answer 20

anything apart from 0 and 0 is 0

Question 21

XOR gate rule

Answer 21

when the two numbers are the same the ans is 0 when the two no are diff the ans in 1

Question 22

What is a computer system

Answer 22

A set of equipment that work together to carry out a given task

Question 23

What are the three types of devices a computer must always have

Answer 23

1) Input devices
2) Output devices
3) Storage devices

Question 24

What do the input devices allow u to do

Answer 24

It allows you to put data into your computer

Question 25

What do the output devices let you do

Answer 25

Let you see the results of your work on the computer

Question 26

What are the storage devices used for

Answer 26

They are used to save data and other instructions

Question 27

What does CPU stand for

Answer 27

Central Processing Unit

Question 28

What is the primary function of the CPU

Answer 28

It is to convert data into information

Question 29

What are the three main parts if the CPU

Answer 29

1) Cu
2) Alu
3) Clock

Question 30

What does the Cu do

Answer 30

1) Fetches the instruction
2) Decodes the instruction
3) Makes sure other parts of the CPU do the work needed

Question 31

What does the Alu do

Answer 31

Does all the arithmetic and logical calculations

Question 32

What does the clock do

Answer 32

Send out regular electrical pulses, everytime it ticks, an instruction is sent from the Cu and the Alu

Question 33

What are buses

Answer 33

Buses are high speed connections that carry data around inside the CPU

Question 34

What are the other names for the computer’s memory

Answer 34

1) The memory unit
2) IAS (Immediate access store)
3) RAM (Random Access Memory)

Question 35

What does the memory hold

Answer 35

1) The instructions that tell the computer what to do
2) The data values the computer needs
3) The result’s of the computer’s work

Question 36

How is data stored in the RAM

Answer 36

As electrical signals

Question 37

Why should you save your work before closing the computer

Answer 37

Data is stored as electric signals so when the electricity is turned off all the data will be lost

Question 38

What stores the data even when the computer is turned of

Answer 38

Storage stores the data even when the computer is turned off

Question 39

What are the four steps of the fetch- execute cycle

Answer 39

1) Fetch
2) Decode
3) Execute
4) Save/ Store

Question 40

Explain fetch

Answer 40

Cu fetches instruction from the RAM

Question 41

Explain decode

Answer 41

Instructions are written in the form of binary. The Cu decodes or breaks down the instruction

Question 42

Explain execute

Answer 42

Cu sends a signal to the Alu to tell it what to do. The Alu carries out the instruction

Question 43

Explain save/ store

Answer 43

The Alu sends the completed result back to the RAM. It is saved in the memory

Question 44

What does volatile mean

Answer 44

Gets rid of data when shut down

Question 45

What is digital privacy

Answer 45

It is often defined as the level of privacy an individual has regarding their personal information online and in the digital world