COMPUTER SCIENCE-WHAT TO REVISE

COMPUTER TOPIC + DESCRIPTIONS

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• Caption: YEAR 10 EXAM TOPICS

BINARY SYSTEM:

• Recognise the use of binary number in computer systems
• Convert deanery numbers into binary and binary numbers into denary
• Show understanding of the concept of byte and how it is used to measure memory size

HEXADECIMAL

• Represent integers as hexadecimal numbers
• Show understanding of the reasons for choosing hexadecimal to represent numbers
• Convert postive hexadecimal integers to and from denary
• Convert postive hexadecimal integers to and from binary
• Represent numbers stored in registers and main memory as hexadecimal
• Identify current uses of hexadecimal numbers in computing-HTML, MAC addresses, Assembly languages, machine code and debugging

DATA STORAGE:

• Show understanding that sound, pictures, videos, text and numbers are stored in different formats
• Identify and describe methods of error detection and corrections-