Data Types

Topic

1.4.1 Data Types

(a) Primitive data types, integer, real/floating point, character, string and Boolean. (b) Represent positive integers in binary. (c) Use of sign and magnitude and two’s complement to represent negative numbers in binary. (d) Addition and subtraction of binary integers. (e) Represent positive integers in hexadecimal. (f) Convert positive integers between binary hexadecimal and denary. (g) Representation and normalisation of floating point numbers in binary. (h) Floating point arithmetic, positive and negative numbers, addition and subtraction. (i) Bitwise manipulation and masks: shifts, combining with AND, OR, and XOR. (j) How character sets (ASCII and UNICODE) are used to represent text.

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