computer systems: hardware

Question 1

what is hardware

Answer 1

physicals components are called hardware

Question 2

what are computers

Answer 2

a system of hardware and software that process data in binary form

a collection of hardware and software

Question 3

what is software

Answer 3

instructions and data that runs on hardware

Question 4

what is internal and external hardware

Answer 4

internal-found inside computer
external-found outside computer

Question 5

most input and output devices are ______

Answer 5

external

Question 6

most processing devices are ________

Answer 6

internal

Question 7

storage devices can be _________

Answer 7

external or internal

Question 8

name 5 input devices

Answer 8

keyboard, mouse, microphone, gaming controller

Question 9

name 5 output devices

Answer 9

speaker, monitor, headphones, printer, projector

Question 10

hardware can be used as ______ devices and ______ devices

Answer 10

input, output

Question 11

what is an input device

Answer 11

sends information in to the computer

Question 12

what is an output device

Answer 12

send information out of the computer

Question 13

what is internal hardware

Answer 13

main components found inside the computer

Question 14

what is a processor function

Answer 14

the main function to process data

Question 15

all data processing is done by _________

Answer 15

CPU

Question 16

name 2 types of data

Answer 16

numbers, words, integers, etc

Question 17

what is data?

Answer 17

facts and figures

Question 18

explain what is meant by computer system

Answer 18

a system is a group of things working together. a computer is made of hardware and software.

Question 19

why do computers use binary numbers?

Answer 19

binary is easy for computers to process

Question 20

what is the function of computers?

Answer 20

process data in binary form

Question 21

what does CU stand for?

Answer 21

control unit

Question 22

how can you improve computer performance

Answer 22

The performance of a computer can be improved by increasing CPU speed, increasing RAM capacity, increasing storage capacity or using a faster storage type

Question 23

what does SSD stand for

Answer 23

solid state drive

Question 24

1 Byte is 8 bits
- 1 kiloByte is 1000 Bytes
- 1 MegaByte is 1000 kB
- 1 GigaByte is 1000 MB
- 1 TeraByte is 1000 GB

Answer 24

notes on bytes

Question 25

what does CPU contain

Answer 25

ALU and CU (arithmetic logic unit and control unit)

Question 26

what does CU do?

Answer 26

The Control Unit (CU) sends control signals to manage data flow and understands instructions

Question 27

what does ALU do?

Answer 27

The Arithmetic and Logic Unit (ALU) performs calculations and comparisons

Question 28

what does memory do?

Answer 28

Memory holds the data from programs that are currently running

Question 29

what does storage do?

Answer 29

Storage holds saved data from programs that are not in use

Question 30

what are buses?

Answer 30

Buses are wires that carry data between computer components

Question 31

draw the block diagram for system

Answer 31

(write on the notes)

Question 32

why do people use hard disks rather than SSD

Answer 32

Hard disks are cheaper for the same amount of storage compared to solid state drives

Question 33

what is system software

Answer 33

System software are tasks run by the computer, with not much user control. E.g.: operating system, device driver, antivirus