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What unit is used for processing speed? Hertz (Hz)
What are the leading manufactures for processing chips? Intel and AMD
What are the most critical factors of a processor? Compatibility and speed
Bar chart Compare data associated with a specific time period
Pie chart Quick overview of data that can be divided into a limited number of categories
Line chart Shows changes over time
Scatter chart Shows relationship between variables
Stock chart Shows opens, highs, low and volume
,What is computer memory? Consists of electronic components that store instructions
waiting to be executed by the processor, data needed by those instructions and the results of
processing the data
3 categories of items stored? The operating system and other programs
Applications
Data being processed and the resulting information
What is used to measure memory? Gigabytes (GB) or Terabytes (TB)
What are the two types of memory? volatile and non-volatile
What is volatile memory? Loses its contents when power is turned off (RAM)
What is non volatile memory? Does not loss contents when powered off.
ROM, flash memory, CMOS
, 1st step with working memory When computer turns on, certain operating files are loaded
into RAM from the hard drive. The operating system displays the user interface on the screen
2nd step with working memory When you run a browser the applications instructions are
loaded into RAM from the hard drive. The browser and certain operating system instructions are
in RAM. The browser window appears on screen
3rd step with working memory Running an application, its instructions are loaded onto
RAM from the hard drive
4th step with working memory When exiting an application its instructions are removed
from RAM, having it no longer displayed on the screen
What are the two types of RAM Dynamic RAM (DRAM)
Static RAM (SRAM)
What is read-only memory (ROM)? Provides permanent data and instructions that do not
change