module 1.3

Question 1

what is memory?

Answer 1

Where the computer holds all the programs and data it is busy on.

Memory only keeps its contents while it is supplied with power

Question 2

what is RAM?

Answer 2

RAM is memory
comes in sticks called DIMMs(dual inline memory modules

Question 3

how is RAM measured?

Answer 3

measured in the low gigabytes

Question 4

what is memory usually referred to as?

Answer 4

primary storage
and storage as secondary storage

Question 4

what is storage?

Answer 4

where programs and data are kept permanently
anything you want to keep or save for later must be saved to storage

Question 5

how is storage organised?

Answer 5

stored in files organised into folders.

Question 6

how is storage measured?

Answer 6

measured in gigabytes or low terabytes

Question 7

types of storage media

Answer 7

hard drive
flash drive
SSD
CD
DVD

Question 8

what is an SSD?

Answer 8

Solid State drive
a completely electronic alternative to a hard drive

Question 9

What technology does an SSD use?

Answer 9

The same technology as a flash drive

Question 10

Difference between memory and storage

Answer 10

MEMORY
holds data and programs while it is on and working
electronic
fast to access
STORAGE
holds data and programs more peramanently
magnetic or electronic
slow to access

Question 10

what is online storage?

Answer 10

refers to disk space allocated to you on a server on the internet

Question 11

what do many companies offer in online storgae?

Answer 11

small capacities of storage such as 2 GB, and it is free.

Question 12

how do you access online storage space?

Answer 12

all you need to do is log in with your computer with a username and password.

Question 13

what is the online storage companies responsible for?

Answer 13

Creating backups to protect your data so that no one can access it

Question 14

Advantages of online storage

Answer 14

-accessible anywhere on any device with an internet access
-saves space on the computer
-easy to share files

Question 15

Disadvantages of online storage

Answer 15

-only accessible with an internet connection
-you pay for bandwidth
-you have no control over backup and security

Question 15

what does cloud computing mean?

Answer 15

actual programs run on a server on the internet and you access those programs through your web browser

Question 16

what does it mean when you say you keep your data in the cloud?

Answer 16

means your data is out there somewhere on a server on the internet

Question 17

examples of online storage facilities

Answer 17

dropbox
google drive
icloud

Question 18

what does backing up mean

Answer 18

involves making copies of your data and storing it in a different place from where you keep your computer

Question 19

why do we back up?

Answer 19

to prevent data loss in case of an acccidental deletion or if your computer gets stolen

Question 20

what matters when you make a backup?

Answer 20

-its quick and easy to make a backup
-its easy to restore the data

Question 21

most popular backup strategy

Answer 21

-flash drives
-portable hard drives
-online backup services

Question 22

disadvantages of CDs and DVDs

Answer 22

-lower capacity
-become unreliable over time
-data eventually becomes inaccessible

Question 23

steps to write CDs and DVDs

Answer 23

-open file manager
-select the files and folders that you want to write
-drag the files to the CD or DVD icon
-right click and choose the burn option

Question 24

difference between backups and archives

Answer 24

BACKUPS
made so that you have a copy or duplicate of fies incase something goes wrong
ARCHIVES
making copies of files but only accessed when needed

Question 25

how to manage backups

Answer 25

use specialist backup software that compresses the data and compares what is in the backup

Question 26

how to fix problems with CDs and DVDs

Answer 26

make sure it is clean
wipe with a damp soft cloth

Question 27

when you cant seem to write a CD or DVD successfully

Answer 27

write at a lower speed
make sure you have enough storage space

Question 28

what does formatting mean?

Answer 28

when you prepare a disk to store data

Question 29

what is disk scanning?

Answer 29

A utility that comes with all operating systems, can be used to check a drive for errors.

Question 30

how to use disk scanning in windows

Answer 30

in file manager right click and select properties
on the tools tab you will find options including one for error checking

Question 31

what is disk defragmentation?

Answer 31

the more you use your computer the more the files get scattered on the disk