IGCSE Computer Science Paper 1 Crossword: 1.3 Data Storage and Compression (Modules 59–68)
Name:
Date:
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✎
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
Across
- 2. A unit of data storage equal to 1024 kibibytes (KiB). The mebi prefix means 1024 squared. A typical photo or song is a few ______ in size. Word 2 of: ________ (___) (3)
- 4. The storage unit ladder from smallest to largest. Above the ______, each unit is 1024 times the one before: 1 KiB = 1024 bytes, 1 MiB = 1024 KiB, and so on up to EiB. Word 2 of: ___, ______, ____, KiB, ___, ___, TiB, PiB, EiB (6)
- 5. Word 3 of the term in 4 Across: ___, ______, ____, KiB, ___, ___, TiB, PiB, EiB (4)
- 6. Word 6 of the term in 4 Across: ___, ______, ____, KiB, ___, ___, TiB, PiB, EiB (3)
- 7. Word 2 of the term in 3 Down: _____ = ____ / 8 (4)
- 8. Word 1 of the term in 4 Across: ___, ______, ____, KiB, ___, ___, TiB, PiB, EiB (3)
Down
- 1. To convert to the next larger unit (bytes to KiB, KiB to MiB, MiB to GiB), ______ the size by 1024. The answer may not be a whole number. Word 1 of: ______ by 1024 (6)
- 2. Word 1 of the term in 2 Across: ________ (___) (8)
- 3. Divide ______ by 8 to get ______. Multiply ______ by 8 to get ______. A nibble is 4 ______, so 2 nibbles make 1 byte. Example: 24 ______ / 8 = 3 ______, and 5 ______ x 8 = 40 ______. Word 1 of: _____ = ____ / 8 (5)
- 6. A ______ (GiB) is a unit of data storage equal to 1024 mebibytes (MiB). A film or memory stick is often a few GiB. The gibi prefix means 1024 cubed bytes. (8)
Answer Key
IGCSE Computer Science Paper 1 · Modules 59–68
1D
2M
I
3B
4N
I
B
B
L
E
Y
V
5B
Y
T
E
I
I
E
D
6G
I
B
S
E
I
Y
7B
I
T
S
I
E
B
Y
8B
I
T
E
Across
2MIB — A unit of data storage equal to 1024 kibibytes (KiB). The mebi prefix means 1024 squared. A typical photo or song is a few ______ in size. Word 2 of: ________ (___)
4NIBBLE — The storage unit ladder from smallest to largest. Above the ______, each unit is 1024 times the one before: 1 KiB = 1024 bytes, 1 MiB = 1024 KiB, and so on up to EiB. Word 2 of: ___, ______, ____, KiB, ___, ___, TiB, PiB, EiB
5BYTE — Word 3 of the term in 4 Across: ___, ______, ____, KiB, ___, ___, TiB, PiB, EiB
6GIB — Word 6 of the term in 4 Across: ___, ______, ____, KiB, ___, ___, TiB, PiB, EiB
7BITS — Word 2 of the term in 3 Down: _____ = ____ / 8
8BIT — Word 1 of the term in 4 Across: ___, ______, ____, KiB, ___, ___, TiB, PiB, EiB
Down
1DIVIDE — To convert to the next larger unit (bytes to KiB, KiB to MiB, MiB to GiB), ______ the size by 1024. The answer may not be a whole number. Word 1 of: ______ by 1024
2MEBIBYTE — Word 1 of the term in 2 Across: ________ (___)
3BYTES — Divide ______ by 8 to get ______. Multiply ______ by 8 to get ______. A nibble is 4 ______, so 2 nibbles make 1 byte. Example: 24 ______ / 8 = 3 ______, and 5 ______ x 8 = 40 ______. Word 1 of: _____ = ____ / 8
6GIBIBYTE — A ______ (GiB) is a unit of data storage equal to 1024 mebibytes (MiB). A film or memory stick is often a few GiB. The gibi prefix means 1024 cubed bytes.