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5 of 5 objectives have lessons · 0 studied · 0 secure
What Cambridge says you should be able to do, in our words. Codes are the topic number plus the objective’s position.
Understand binary magnitudes and the difference between binary prefixes and decimal prefixes.
Understand the difference between, and use, kibi and kilo, mebi and mega, gibi and giga, and tebi and tera.
Taught in: Binary prefixes and magnitudes · 6 questions
Understand different number systems.
Use the binary, denary and hexadecimal number bases, Binary Coded Decimal (BCD), and one's and two's complement representation of binary numbers. Convert an integer value from one number base or representation to another.
Taught in: Binary Coded Decimal (BCD), Binary and denary, Hexadecimal, Negative numbers: one's and two's complement · 23 questions
Carry out binary addition and subtraction.
Using positive and negative binary integers. Understand how overflow can occur.
Taught in: Binary addition and overflow, Subtraction and overflow in two's complement · 12 questions
Describe practical applications in which Binary Coded Decimal (BCD) and hexadecimal are used.
Taught in: Binary Coded Decimal (BCD), Where hexadecimal is used · 4 questions
Understand, and be able to represent, character data in its internal binary form, which depends on the character set used.
Students should be familiar with ASCII (American Standard Code for Information Interchange), extended ASCII and Unicode. They will not be expected to memorise any particular character codes.
Taught in: Character sets: ASCII, extended ASCII and Unicode · 7 questions