IGCSE Computer Science Paper 1 Crossword: 3.2 Input and Output Devices and 3.3 Data Storage (Modules 293–303)
Name:
Date:
Class:
✎
Crossword
Read each clue and write the matching term in the grid. Numbers in brackets show the letters in each word.
1
2
3
4
5
6
7
8
9
Across
- 2. Each ______ captures one type of ______, so identify the ______ ______ (e.g. moisture in soil, humidity in air), ______ name the ______ that measures it. Word 2 of: ____ _____, ____ ______ (5)
- 4. Memory the CPU can access directly, so it is fast. It is made up of RAM (temporary, holds running programs and data) and ROM (permanent, holds start-up instructions). Word 2 of: primary _______ (7)
- 6. Word 3 of the term in 2 Across: ____ _____, ____ ______ (4)
- 8. Word 1 of the term in 2 Across: ____ _____, ____ ______ (4)
- 9. Word 2 of the term in 2 Down: ________ ____ (4)
Down
- 1. Read only memory: non-volatile primary storage whose contents are fixed. It keeps the start-up (boot) instructions, so data stays when power is off. Also used in embedded devices. (3)
- 2. A sensor sends readings to a microprocessor, which compares them with a stored value and signals an actuator, such as a heater, to act. This repeats continuously. Word 1 of: ________ ____ (8)
- 3. The sensor that measures the physical quantity a system needs, e.g. light for street lamps or pressure for a car park. Justify it with 'because'. Word 1 of: ________ ______ (8)
- 5. Word 4 of the term in 2 Across: ____ _____, ____ ______ (6)
- 7. ______ is volatile, read/write and holds running programs; ROM is non-volatile, read only and holds start-up instructions. ______ is larger. Word 1 of: ___ vs ___ (3)
Answer Key
IGCSE Computer Science Paper 1 · Modules 293–303
1R
2F
I
R
3S
T
4S
T
O
R
A
G
E
U
M
E
I
5S
D
6T
H
E
N
7R
B
A
N
8D
A
T
A
B
S
M
C
9L
O
O
P
K
E
R
Across
2FIRST — Each ______ captures one type of ______, so identify the ______ ______ (e.g. moisture in soil, humidity in air), ______ name the ______ that measures it. Word 2 of: ____ _____, ____ ______
4STORAGE — Memory the CPU can access directly, so it is fast. It is made up of RAM (temporary, holds running programs and data) and ROM (permanent, holds start-up instructions). Word 2 of: primary _______
6THEN — Word 3 of the term in 2 Across: ____ _____, ____ ______
8DATA — Word 1 of the term in 2 Across: ____ _____, ____ ______
9LOOP — Word 2 of the term in 2 Down: ________ ____
Down
1ROM — Read only memory: non-volatile primary storage whose contents are fixed. It keeps the start-up (boot) instructions, so data stays when power is off. Also used in embedded devices.
2FEEDBACK — A sensor sends readings to a microprocessor, which compares them with a stored value and signals an actuator, such as a heater, to act. This repeats continuously. Word 1 of: ________ ____
3SUITABLE — The sensor that measures the physical quantity a system needs, e.g. light for street lamps or pressure for a car park. Justify it with 'because'. Word 1 of: ________ ______
5SENSOR — Word 4 of the term in 2 Across: ____ _____, ____ ______
7RAM — ______ is volatile, read/write and holds running programs; ROM is non-volatile, read only and holds start-up instructions. ______ is larger. Word 1 of: ___ vs ___