Computer System

Question 1

Hardware

Answer 1

All the physical components involved in the input and process of data

Question 2

Software

Answer 2

Is the binary data that encodes the instructions that are stored and executed on hardware
Application software
System software

Question 3

Boolean logic

Answer 3

Deals with expressions and system that have inputs and outputs of true and false

Question 4

AND

Answer 4

Both values have to be true

Question 5

OR

Answer 5

Only one values have to be true

Question 6

NOT

Answer 6

Opposite

Question 7

Application software

Answer 7

Software designed for user interaction

Question 8

System software

Answer 8

Provide a platform for application to run

Question 9

Processor

Answer 9

Ensuring the necessry program and tasks are being executed

Question 10

Memory

Answer 10

Ensuring the required instruction and data are stored

Question 11

I/O device

Answer 11

Input and output devices such as keyboard and monitors

Question 12

Security

Answer 12

Firewalls and anti-virus check

Question 13

ALU(arithmetic logic unit)

Answer 13

Evaluates arithmetic and logic expressions

Question 14

Control unit

Answer 14

Governs the interface with input and output

Also ttranslator for instructions and data

Question 15

System clock

Answer 15

Beats a constant pulse that regulates all read

Question 16

Bus

Answer 16

Physically connect the processor, memory and I/O devices

Question 17

Fetching

Answer 17

Instruction from memory to processor

Question 18

Decoding

Answer 18

The instruction on the processor

Question 19

Executing

Answer 19

The instruction by calculator with the ALU, reading data from memory, writing data in memory

Question 20

Cores properties

Answer 20

As cores increase in number, more instructions Cain be fetched/decoded/executed

Question 21

Volatile

Answer 21

Main memory does not retain data and instructions stored in it
Does not require energy
Data is lost when there is no energy

Question 22

Secondary storage

Answer 22

Hard disk drivers, ssd, optical media

Question 23

Magnetic hard drivers

Answer 23

Use magnets to read/write on little particles on a spinning disk

Question 24

Optical media

Answer 24

Work by shining a laser at the end of a movable arm on a spinning disk. The pits and lands from the disk reflect or disperse the light

Question 25

Solid state drive

Answer 25

No moving parts -> rigid | Complex electrical circuits to store data

Question 26

Advantage for magnetic

Answer 26

Cheap -> good to store large capacities | Fast read/write

Question 27

Optical media advantage

Answer 27

Use to distribute data/software without using a network

Question 28

Solid State advantage

Answer 28

Very fast read/write speed No moving parts -> robust Small size per bit

Question 29

Magnetic media disadvantage

Answer 29

Use moving parts -> less robust

Question 30

Optic media disadvantage

Answer 30

Low capacity Easily corrupted Slowest read speed Very slow write speed

Question 31

Solid State disadvantage

Answer 31

Expensive

Question 32

Cloud storage

Answer 32

Data not stored on the computer but on a network using data