Our site uses cookies. Some of the cookies we use are essential for parts of the site to operate and have already been set. You may delete and block all cookies from this site, but parts of the site will not work. To find out more about cookies on this website, see our Cookie Policy
Accept
© eRevision.uk and ZigZag Education 2025
This test is run by .
Note that your final mark will not be saved in the system.

14 - Logic GapFill

Target Level
C
Running Total
0
0%
Attempt
1 of 3

You must fill all the gaps before clicking ‘Check Answers!’

This following paragraph uses 'a(n)' a lot, where either 'a' or 'an' would be the correct word.  This is simply to prevent providing you, the student, with too many clues as to the correct answer.  Our apologies for the impact this has upon readability.

The simplest logic gate, which is a(n)  XORORANDNOT gate, has only a single input, and the output is simply the opposite of the input.  To put it another way, this gate   revertsconvertssubvertsinverts the input to produce its output.  A(n)   NORNOTORAND gate will only output TRUE if both inputs are TRUE, otherwise it outputs false.  All of these outputs are reversed if the gate is, instead, a(n)   NORNANDNOTAND gate.  Then there is a(n)   NANDORANDNOT gate, which outputs TRUE if either input is TRUE, as well as if both inputs are TRUE, only outputting FALSE if both inputs are FALSE.  These outputs would be reversed if we were to change this gate to a(n)   XORNORANDNOT gate.  Finally, there is a(n)   ORANDXORNAND gate, which outputs TRUE if the two inputs are different from each other.  If both are TRUE, or if both are FALSE, then the output would be FALSE.

This is your 1st attempt! You get 3 marks for each one you get right. Good luck!

Pass Mark
72%