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GCSE     >Logic<     Algebra     Gates     Latch     NAND Array     Schmitt NOT     Truth Tables    

Logic


Site for Eduqas/WJEC - Go to the AQA site.
  GCSE    Combinational Logic  0 of 56    Question 191    Boolean AND Symbol Score 0/0 Not attempted Last Answer Deadline not set1 of 56    Question 612    Boolean Expressions Score 0/0 Not attempted Last Answer Deadline not set2 of 56    Question 613    Boolean Expressions Score 0/0 Not attempted Last Answer Deadline not set3 of 56    Question 614    Boolean Expressions Score 0/0 Not attempted Last Answer Deadline not set4 of 56    Question 615    Boolean Expressions Score 0/0 Not attempted Last Answer Deadline not set5 of 56    Question 616    Boolean Expressions Score 0/0 Not attempted Last Answer Deadline not set6 of 56    Question 190    Boolean OR Symbol Score 0/0 Not attempted Last Answer Deadline not set7 of 56    Question 926    Gate Arrays Score 0/0 Not attempted Last Answer Deadline not set8 of 56    Question 922    Gate Arrays Score 0/0 Not attempted Last Answer Deadline not set9 of 56    Question 923    Gate Arrays Score 0/0 Not attempted Last Answer Deadline not set10 of 56    Question 924    Gate Arrays Score 0/0 Not attempted Last Answer Deadline not set11 of 56    Question 925    Gate Arrays Score 0/0 Not attempted Last Answer Deadline not set12 of 56    Question 1477    Logic Score 0/0 Not attempted Last Answer Deadline not set13 of 56    Question 1478    Logic Score 0/0 Not attempted Last Answer Deadline not set14 of 56    Question 1479    Logic Score 0/0 Not attempted Last Answer Deadline not set15 of 56    Question 1480    Logic Score 0/0 Not attempted Last Answer Deadline not set16 of 56    Question 1482    Logic Algebra Score 0/0 Not attempted Last Answer Deadline not set17 of 56    Question 1481    Logic Algebra Score 0/0 Not attempted Last Answer Deadline not set18 of 56    Question 1277    Logic Gates Score 0/0 Not attempted Last Answer Deadline not set19 of 56    Question 1275    Logic Gates Score 0/0 Not attempted Last Answer Deadline not set20 of 56    Question 1278    Logic Gates Score 0/0 Not attempted Last Answer Deadline not set21 of 56    Question 1279    Logic Gates Score 0/0 Not attempted Last Answer Deadline not set22 of 56    Question 1280    Logic Gates Score 0/0 Not attempted Last Answer Deadline not set23 of 56    Question 1281    Logic Gates Score 0/0 Not attempted Last Answer Deadline not set24 of 56    Question 1282    Logic Gates Score 0/0 Not attempted Last Answer Deadline not set25 of 56    Question 1283    Logic Gates Score 0/0 Not attempted Last Answer Deadline not set26 of 56    Question 1284    Logic Gates Score 0/0 Not attempted Last Answer Deadline not set27 of 56    Question 1285    Logic Gates Score 0/0 Not attempted Last Answer Deadline not set28 of 56    Question 117    Logic Gates Score 0/0 Not attempted Last Answer Deadline not set29 of 56    Question 249    Logic Gates Score 0/0 Not attempted Last Answer Deadline not set30 of 56    Question 116    Logic Gates Score 0/0 Not attempted Last Answer Deadline not set31 of 56    Question 118    Logic Gates Score 0/0 Not attempted Last Answer Deadline not set32 of 56    Question 119    Logic Gates Score 0/0 Not attempted Last Answer Deadline not set33 of 56    Question 120    Logic Gates Score 0/0 Not attempted Last Answer Deadline not set34 of 56    Question 121    Logic Gates Score 0/0 Not attempted Last Answer Deadline not set35 of 56    Question 245    Logic Gates Score 0/0 Not attempted Last Answer Deadline not set36 of 56    Question 246    Logic Gates Score 0/0 Not attempted Last Answer Deadline not set37 of 56    Question 247    Logic Gates Score 0/0 Not attempted Last Answer Deadline not set38 of 56    Question 248    Logic Gates Score 0/0 Not attempted Last Answer Deadline not set39 of 56    Question 250    Logic Gates Score 0/0 Not attempted Last Answer Deadline not set40 of 56    Question 1491    Logic Latch Score 0/0 Not attempted Last Answer Deadline not set41 of 56    Question 1484    Logic Latch Score 0/0 Not attempted Last Answer Deadline not set42 of 56    Question 1485    Logic Latch Score 0/0 Not attempted Last Answer Deadline not set43 of 56    Question 1486    Logic Latch Score 0/0 Not attempted Last Answer Deadline not set44 of 56    Question 1487    Logic Latch Score 0/0 Not attempted Last Answer Deadline not set45 of 56    Question 1488    Logic Latch Score 0/0 Not attempted Last Answer Deadline not set46 of 56    Question 1489    Logic Latch Score 0/0 Not attempted Last Answer Deadline not set47 of 56    Question 1490    Logic Latch Score 0/0 Not attempted Last Answer Deadline not set48 of 56    Question 1483    Logic Latch Score 0/0 Not attempted Last Answer Deadline not set49 of 56    Question 306    Sub-systems Score 0/0 Not attempted Last Answer Deadline not set50 of 56    Question 1018    Subsystems Score 0/0 Not attempted Last Answer Deadline not set51 of 56    Question 1017    Subsystems Score 0/0 Not attempted Last Answer Deadline not set52 of 56    Question 1016    Subsystems Score 0/0 Not attempted Last Answer Deadline not set53 of 56    Question 569    Truth Tables Score 0/0 Not attempted Last Answer Deadline not set54 of 56    Question 570    Truth Tables Score 0/0 Not attempted Last Answer Deadline not set55 of 56    Question 571    Truth Tables Score 0/0 Not attempted Last Answer Deadline not set56 of 56    Question 572    Truth Tables Score 0/0 Not attempted Last Answer Deadline not set  Questions 0 to 56   -->  View All  

Logic circuits are built from switches or gates that obey simple rules.

4000 Series Selected Logic Chips

The AND Rule

The lamp comes on, only if both switches are on.

AND Logic Example - Operate the machine, only when all the safety doors are closed.

AND Logic Using Switches

The OR Rule

The lamp comes on if either or both switches are on.

OR Logic Example - Sound the fire alarm if one or more fire alarm glasses are broken.

Logic OR Rule. One or both switches must be pressed.

Logic Goats

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