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GCSE may 2022 OCR

Authored by David McNeice

Computers

11th Grade

Used 1+ times

GCSE may 2022 OCR
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39 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the binary equivalent of the denary number 221?

11011101

10110110

11100110

10011100

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the denary equivalent of the hexadecimal number 2F?

45

47

42

46

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the hexadecimal equivalent of the binary number 10111000?

B8

E2

A1

7C

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many unique values can be represented by 4 bits?

8

16

12

14

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the result of performing a binary shift of 3 places to the right on the binary number 10001110?

00010001

00001000

00010110

00001110

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the function of the Control Unit (CU) in a CPU?

Performs mathematical calculations and logical operations.

Stores the address of the data to be fetched from or the address where the data is to be stored.

Stores the address of the next instruction to be fetched from memory. Increments during each fetch-execute cycle.

Manages the execution of programs and processes input/output requests.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which CPU component or register stores the address of the data to be fetched from or the address where the data is to be stored?

CU (Control Unit)

MAR (Memory Address Register)

PC (Program Counter)

ALU (Arithmetic Logic Unit)

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