Encryption - Encodes data so can only be read by intended recipient, Firewall - Protects network by checking every packet trying to access it, Arithmetic Logic Unit - Performs calculations and comparisons, Control Unit - Manages the execution of instrucitons, Address Bus - Specifies the address to be accessed, Data Bus - Transfers data between RAM and the processor, Interpreters - Translates and executes code one line at a time, Compiler - Translates a whole program in one go, Machine Code - Language understood by the computer, Syntax Error - Caused by breaking the rules of the language eg misspelling a comman word, Logic Error - Could be instructions are in the wrong order or added when should multiply, Execution Error - Asks CPU to do something impossible eg divide by zero, Reduces energy consumption - Reducing brightness of monitor, Mantissa & Exponent - Used by floating point representation, Floating Point Representation - Represents Real numbers, High Level Languages - Used to write programs that resemble human languages ,

Computer Systems 2

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