Lesson 5

• Informatica
• Middelbare school
• vwo
• Leerjaar 1

Windows will ask which program to use

This opens a powerpoint presentation

This opens a song

This opens notepad

This opens a program

binary code

• 1 bit  (0 or 1)
  
• 1 byte = 8 bits
  
• 1 Kb = 1024 bytes
• 1 Mb = 1024 Kb = 1,048,576 bytes
• 1 Gb = 1024 Mb = 1,073,741,824 bytes
• 1 Tb = 1024 Gb = 1,099,511,627,776 bytes

4Gb random access memory
=
4,3 billion bytes
=
34 billion 0 and 1

i have a file of 46 Kb. How many bytes is that?

3221225472 bytes is how many kilobytes?

How many characters (bytes) can you fit onto an USB-stick of 4 gigabyte?

1 letter is 1 byte

an average word in Dutch is 5 letters

a pendrive can contain over 859 million Dutch words

on a normal page you can fit 350 to 400 words

so this 4 Gb flashdrive equals 2,4 million normal pages

Mary saved some money and she wants to transfer her music files to a MP3 player. She has 5000 musicfiles on her computer. Each song is 4000 Kb

which mp3 player should she get?

which mp3 player should she get?

1. 8 Gb
2. 16 Gb
3. 32 Gb
4. 128 Gb

This is Joseph his phone.

he wants to save some video files on this phone.

each video is 27,5 Mb

How many videofiles can Joseph save?