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COMPUTER SCIENCE, DATA STORAGE - Coggle Diagram
COMPUTER SCIENCE
System Architecture.
Main parts of the CPU
- arithmetic and logic unit (ALU)
- main storage
- control unit.
Factors affecting the performance of the CPU:
- Clock speed
- Number of Cores
Amount of Cache
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Memory and Storage
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SECONDARY STORAGE
Is needed to keep a copy of programs and data that need to be kept long term because RAM is volatile meaning all data and programs will be lost when the device is turned off.
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UNITS
Bit (one 0/1), nibble (4bits), byte (8bits), kilobyte (1000 bytes), megabyte (1000 kb), gigabyte (1000 mb), terabyte (1000 gb), petabyte (1000tb).
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Data needs to be converted into a binary format to be processed by a computer because binary is the only language that computers can understand.
HOW TO CONVERT BINARY TO DENARY: 
How to convert binary to denary:
Adding binary numbers & overflow errors:
When adding binary numbers we can end up with an extra digit that doesn't fit the allocated memory space. This is called an overflow error.
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