Computer Science - 4CP0 PearsonEdexcel

Logic

Akopọ

A burglar alarm that only sounds when a window is open AND the system is armed, OR when the panic button is pressed, is making a decision with exactly the same building blocks that control billions of transistors inside a CPU. Every decision a digital circuit makes, however complicated it looks from the outside, is built from a tiny handful of logic gates combining binary inputs into a binary output.

In this lesson you will learn what the AND, OR and NOT gates do and how the derived XOR gate is built from them, how to write Boolean expressions for a logic statement, how to build a complete and correct truth table for any expression, and how to turn a real-world problem into a logic statement of your own.

Awọn Afojusun

  1. Be able to construct and interpret truth tables for a given logic statement (AND, OR, NOT)
  2. Be able to produce logic statements for a given problem

Akọ̀wé Ẹ̀kọ́

A logic gate takes one or more binary inputs (each either 0 or 1) and produces a single binary output, based on a fixed rule. A Boolean expression is the written form of that rule, combining input names with the operators AND, OR and NOT. Three gates form the basis of every digital circuit.

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Gba ohun elo Green Bridge CBT sori foonu tabi kọmputa rẹ lati ri awọn akọsilẹ ẹkọ ni kikun, awọn ibeere adaṣe, ati diẹ sii.

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Ìdánwò Ẹ̀kọ́

Oriire fun ipari ẹkọ lori Logic. Ni bayi ti o ti ṣawari naa awọn imọran bọtini ati awọn imọran, o to akoko lati fi imọ rẹ si idanwo. Ẹka yii nfunni ni ọpọlọpọ awọn adaṣe awọn ibeere ti a ṣe lati fun oye rẹ lokun ati ṣe iranlọwọ fun ọ lati ṣe iwọn oye ohun elo naa.

Iwọ yoo pade adalu awọn iru ibeere, pẹlu awọn ibeere olumulo pupọ, awọn ibeere idahun kukuru, ati awọn ibeere iwe kikọ. Gbogbo ibeere kọọkan ni a ṣe pẹlu iṣaro lati ṣe ayẹwo awọn ẹya oriṣiriṣi ti imọ rẹ ati awọn ogbon ironu pataki.

Lo ise abala yii gege bi anfaani lati mu oye re lori koko-ọrọ naa lagbara ati lati ṣe idanimọ eyikeyi agbegbe ti o le nilo afikun ikẹkọ. Maṣe jẹ ki awọn italaya eyikeyi ti o ba pade da ọ lójú; dipo, wo wọn gẹgẹ bi awọn anfaani fun idagbasoke ati ilọsiwaju.

  1. Which Boolean operator produces an output of 1 only when both of its inputs are 1? A) OR B) NOT C) AND D) XOR Answer: C
  2. How many rows does a complete truth table need for a logic statement with 3 inputs? A) 3 B) 6 C) 8 D) 9 Answer: C
  3. For inputs A=1 and B=0, what is the output of X = A XOR B? A) 0 B) 1 C) Undefined D) 2 Answer: B
  4. Which gate takes only one input? A) AND B) OR C) NOT D) XOR Answer: C
  5. In standard binary counting order, what are the four input rows for a 2-input truth table (A then B)? A) 11, 10, 01, 00 B) 00, 01, 10, 11 C) 00, 10, 01, 11 D) 01, 10, 00, 11 Answer: B

O wa lori ohun elo Green Bridge

Gba ohun elo Green Bridge CBT sori foonu tabi kọmputa rẹ lati ri awọn akọsilẹ ẹkọ ni kikun, awọn ibeere adaṣe, ati diẹ sii.

Awọn akọsilẹ ẹkọ ni kikun pẹlu awọn aworan apejuwe
Oluranlọwọ ẹkọ ti AI ṣe agbara rẹ
Kọ ẹkọ laisi intanẹẹti, nigbakugba, nibikibi
O wa lori Android, Windows, macOS, ati Linux

O wa lori ohun elo Green Bridge

Gba ohun elo Green Bridge CBT sori foonu tabi kọmputa rẹ lati ri awọn akọsilẹ ẹkọ ni kikun, awọn ibeere adaṣe, ati diẹ sii.

Awọn akọsilẹ ẹkọ ni kikun pẹlu awọn aworan apejuwe
Oluranlọwọ ẹkọ ti AI ṣe agbara rẹ
Kọ ẹkọ laisi intanẹẹti, nigbakugba, nibikibi
O wa lori Android, Windows, macOS, ati Linux

Ṣe Adaṣe Awọn Ibeere Idanwo Adaṣe

Ṣe o fẹ ṣe adaṣe awọn ibeere idanwo adaṣe nipa Logic? Ṣe igbasilẹ ohun elo Green Bridge CBT lati wọle si awọn ibeere idanwo adaṣe ati awọn ayẹwo adaṣe kikun fun koko-ọrọ yii.

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