Lesson 4 Data and saving it

• Mediawijsheid
• Middelbare school
• havo
• Leerjaar 2

Welcome!

1. Start your computer
2. Login
3. Login via the 0ffice 365 button
4. When you have done all this, you may do something for yourself until you hear my starting signal

Goals of this lesson

• You know what digital storage is
• You know what data is.
• You know about file sizes
• You know what big data is
• You know the advantages and disadvantages of big data

Data = information

Give an example of data

Data = information

- personal data

- online records 

- images 

- anything

Big data

The amount of data we all produce is growing explosively, because everything and everyone is online. This huge mountain of digital data is called big data.

Benefits

• shops gain insight into their customers' overall buying behaviour.
• Based on the data, you can tailor everything to people: education, care, offers. This makes your life easier.
• Risks can be better assessed.

Disadvantages

• Many people do not know that their data is sold on to other organisations. You lose control over who knows what about you.
•  Algorithms are used to match internet offers to your personal preferences. As a result, you are less likely to encounter other opinions. 
• Big data easily provides insight, for example into people's behaviour or interests. A risk here is that the data is seen as neutral or objective. It remains important to ask critical questions. 

Measurement of data

1000 bites = 1 KiloByte = half a page of text

1024 KB = 1 MegaByte = one 1 minute mp3 song

1000MB=1 GigaByte = a music CD of 114 minutes

1000GB= 1 TeraByte = the information on 212 DVDs

1000TB= 1 PetaByte= Over 10 billion photos of users on Facebook

opslag

Data storage

floppy: 1,77 mb

Cd-rom 700 mb

USB 

512 mb -1TB

external hard disk: max 1 PB

The cloud:

infinite if you pay

Organising data

- saving files in such a way that you can find them again.

- clear names.

- practise already with all your pieces that you have to hand in.

- is often organised on a device or Cloud.

One drive bingo

Wat: We gaan aan de slag met het opslaan van bestanden op een cloud service

Hoe: d.m.v een bingo opdracht. Je kruist af wat je hebt voltooid. Wanneer je alle hokjes hebt afgekruist lever je bingokaart in bij je docent.

Waarom: het gebeurt vaak dat mensen niet weten hoe onedrive werkt en dat

What: We are going to work with saving files on a Cloud service.

How: Through a bingo task. You cross off what you have completed. When you have ticked all the boxes you hand in your bingo card to your teacher.

Why: It often happens that people do not know how OneDrive works and that is inconvenient.

Onedrive bingo

bingo kaart zit in de sharepoint