Site Logo Home
 
rOm
Quest
Glossary
 
Random
Page
Search
Site
Lush
Sim
Class
Subject
Images
 
Help
FAQ
Sign
Up
Log
In
GCSE     Basics     Atom     BCD     >Binary<     Conductors     Current     Energy     Equations     Insulators     Maths     Power     Resistance     Safety     SI Units     Superconductors     Symbols     Transfer Characteristics     Voltage    

Basics Binary


Site for Eduqas/WJEC - Go to the AQA site.

  GCSE    Basic Electronics  0 of 35    Question 1457    Basics 
Score 0/0 
Not attempted  
Last Answer  
Deadline not set1 of 35    Question 1458    Basics Atom 
Score 0/0 
Not attempted  
Last Answer  
Deadline not set2 of 35    Question 1459    Basics Atom 
Score 0/0 
Not attempted  
Last Answer  
Deadline not set3 of 35    Question 1460    Basics Power 
Score 0/0 
Not attempted  
Last Answer  
Deadline not set4 of 35    Question 1461    Basics Resistance 
Score 0/0 
Not attempted  
Last Answer  
Deadline not set5 of 35    Question 1462    Basics Resistance 
Score 0/0 
Not attempted  
Last Answer  
Deadline not set6 of 35    Question 1463    Basics Resistance 
Score 0/0 
Not attempted  
Last Answer  
Deadline not set7 of 35    Question 1464    Basics Safety 
Score 0/0 
Not attempted  
Last Answer  
Deadline not set8 of 35    Question 1465    Basics Safety 
Score 0/0 
Not attempted  
Last Answer  
Deadline not set9 of 35    Question 1466    Basics Safety 
Score 0/0 
Not attempted  
Last Answer  
Deadline not set10 of 35    Question 1467    Basics Safety 
Score 0/0 
Not attempted  
Last Answer  
Deadline not set11 of 35    Question 1468    Basics Superconductors 
Score 0/0 
Not attempted  
Last Answer  
Deadline not set12 of 35    Question 1469    Basics Voltage 
Score 0/0 
Not attempted  
Last Answer  
Deadline not set13 of 35    Question 1470    Basics Voltage 
Score 0/0 
Not attempted  
Last Answer  
Deadline not set14 of 35    Question 1471    Basics Voltage 
Score 0/0 
Not attempted  
Last Answer  
Deadline not set15 of 35    Question 789    Conductors and Insulators 
Score 0/0 
Not attempted  
Last Answer  
Deadline not set16 of 35    Question 790    Conductors and Insulators 
Score 0/0 
Not attempted  
Last Answer  
Deadline not set17 of 35    Question 234    Control System Modules 
Score 0/0 
Not attempted  
Last Answer  
Deadline not set18 of 35    Question 235    Control System Modules 
Score 0/0 
Not attempted  
Last Answer  
Deadline not set19 of 35    Question 236    Control System Modules 
Score 0/0 
Not attempted  
Last Answer  
Deadline not set20 of 35    Question 237    Control System Modules 
Score 0/0 
Not attempted  
Last Answer  
Deadline not set21 of 35    Question 437    Current Calculation 
Score 0/0 
Not attempted  
Last Answer  
Deadline not set22 of 35    Question 590    Ideal Meters 
Score 0/0 
Not attempted  
Last Answer  
Deadline not set23 of 35    Question 591    Ideal Meters 
Score 0/0 
Not attempted  
Last Answer  
Deadline not set24 of 35    Question 209    Light Emitting Diodes 
Score 0/0 
Not attempted  
Last Answer  
Deadline not set25 of 35    Question 1253    Measuring Current 
Score 0/0 
Not attempted  
Last Answer  
Deadline not set26 of 35    Question 155    Measuring Voltage 
Score 0/0 
Not attempted  
Last Answer  
Deadline not set27 of 35    Question 32    Nature of Charge 
Score 0/0 
Not attempted  
Last Answer  
Deadline not set28 of 35    Question 556    Simple Circuits 
Score 0/0 
Not attempted  
Last Answer  
Deadline not set29 of 35    Question 558    Simple Circuits 
Score 0/0 
Not attempted  
Last Answer  
Deadline not set30 of 35    Question 559    Simple Circuits 
Score 0/0 
Not attempted  
Last Answer  
Deadline not set31 of 35    Question 560    Simple Circuits 
Score 0/0 
Not attempted  
Last Answer  
Deadline not set32 of 35    Question 33    Units - Current 
Score 0/0 
Not attempted  
Last Answer  
Deadline not set33 of 35    Question 172    Units - EMF 
Score 0/0 
Not attempted  
Last Answer  
Deadline not set34 of 35    Question 170    Units - Power 
Score 0/0 
Not attempted  
Last Answer  
Deadline not set35 of 35    Question 168    Units - Resistance 
Score 0/0 
Not attempted  
Last Answer  
Deadline not set  Questions 0 to 35   -->  View All  

Binary is the base 2 number system counting 0, 1, 10, 11, 100, 101, 110, 111, 1000, etc.

Binary Su doku    Thanks xkcd

Decimal and Binary - Everyone

Decimal Numbers

These are used in everyday life and are so familiar that many important features get forgotten.

Binary Numbers

Binary Bit

One binary digit. A zero or a one.

Byte

A group of eight bits. Computer data is usually stored and processed in bytes or pairs of bytes or even groups of four or eight bytes.

Nybble

This is half a byte or four bits. The word was originally a joke but the term proved useful.

In an eight bit byte such as 11100111, the HIGH nybble is 1110 and the LOW nybble is 0111.
They are called low and high because the low nybble is worth 0 to 15 in decimal numbers and the high nybble allows numbers up to 255.

Nybble is often spelled nibble. Internet flame wars rage over this!

Word

Grouped bytes are called words. 64 bit computers common in 2015 work with 8 byte groups. 8 x 8 = 64 bits in the word.

LSB and MSB

In this number: 11100111 the

Getting bits back to front causes serious errors so it's important to pay attention to this.
This mistake crops up frequently when designing binary counters to reset on specific numbers like ten.

Decimal Binary Conversion

        Decimal                 Binary        
  8 4 2 1
0 0 0 0 0
1 0 0 0 1
2 0 0 1 0
3 0 0 1 1
4 0 1 0 0
5 0 1 0 1
6 0 1 1 0
7 0 1 1 1
8 1 0 0 0
9 1 0 0 1
10 1 0 1 0
11 1 0 1 1
12 1 1 0 0
13 1 1 0 1
14 1 1 1 0
15 1 1 1 1

Converting Larger Numbers

Decimal         128                 64                 32                 16                 8                 4                 2                 1          
Binary 0 0 1 1 0 0 0 1  
Yes/No 0 0 32 16 0 0 0 1 Total = 49

Little and Big Endian

A 64 bit computer could put the most significant byte at the left or right end of the group of eight bytes. Different computer manufacturers use both schemes. This makes it more difficult to store and transfer data between incompatible systems. Data munging is needed to reverse the byte order. Internet flame wars rage over this topic.

Subject Name     Level     Topic Name     Question Heading     First Name Last Name Class ID     User ID    

fff
Home
<<<
ppw
Pg Up
<<
ppp
Up
<
|||

>|<
nnn
Down
>
nnw
Pg Down
>>
lll
End
>>>

Close
Escape
X

Q: qNum of last_q     Q ID: Question ID         Score: num correct/num attempts         Date Done    

 

Submit
Enter

 

Question Text

image url

 


Help Link

Add     Delete     Clone     Edit     Hardness

Help Text
Debug


 

 

 

Contact, Copyright, Cookies and Legalities: C Neil Bauers - reviseOmatic V4 - © 2016/17

Hosted at linode.com - London