February/March 2026 Paper 12

2026 · 9 questions · 35 parts · 75 marks

0/75 marks

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–/3 mks

2(a)2(b)(i)2(b)(ii)2(c)(i)2(c)(ii)

–/10 mks

3(a)3(b)(i)3(b)(ii)3(b)(iii)3(c)(i)3(c)(ii)

–/11 mks

–/4 mks

5(a)5(b)5(c)(i)5(c)(ii)5(c)(iii)

–/12 mks

6(a)6(b)6(c)6(d)6(e)

–/7 mks

7(a)7(b)7(c)(i)7(c)(ii)

–/8 mks

8(a)8(b)8(c)8(d)

–/12 mks

9(a)9(b)(i)9(b)(ii)

–/8 mks

6(a)Binary Hexadecimal Data UnitsEasy1 mark

Convert the denary number 150 into an 8‑bit binary number.

6(b)Binary Hexadecimal Data UnitsEasy1 mark

Convert the hexadecimal number F08 into a 12‑bit binary number.

6(c)Binary Arithmetic Signed NumbersMedium1 mark

Give the 8‑bit binary value after a logical binary shift left of two places is performed on the binary number 00110101.

6(d)Binary Arithmetic Signed NumbersMedium1 mark

Convert the two’s complement binary integer 01110101 into denary.

6(e)Binary Arithmetic Signed NumbersMedium3 marks

Add the two binary integers using binary addition and give your answer in binary. Show all your working.

Bit	7	6	5	4	3	2	1	0
Carries	Table answer carry_7	Table answer carry_6	Table answer carry_5	Table answer carry_4	Table answer carry_3	Table answer carry_2
	0	0	0	1	1	0	1	0
+	0	1	1	0	1	1	1	0
Answer	Table answer sum_7	Table answer sum_6	Table answer sum_5	Table answer sum_4	Table answer sum_3	Table answer sum_2	Table answer sum_1	Table answer sum_0