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24 Cards in this Set
- Front
- Back
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different units of memory
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bit
byte (8 bits) kilobyte (thousand) megabyte (million) gigabyte (billion) terabyte (trillion) |
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N bits =
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2^n values
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3 parts of von neumann architecture
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memory
input/output cpu |
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definition of a computer
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a device that receives, stores, and processes data
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2 functions of the cpu
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fetch data
execute the instructions |
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primary storage, explain, and size
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RAM/main memory
4Gb volatile/temporary electric smaller & faster |
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secondary memory, explain, and size
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HDD
500 Gb non-vol/permanent magnetic larger & slower |
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list read/write memory
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1) registers (32)
2) L1 cache (64 Kb) 3) L2 cache (2 Gb) 4) RAM (4 Gb) 5) HDD (500 Gb) most expensive -- cheapest fastest -- slowest smallest capacity -- largest |
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operating system functions
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memory management
multitasking file management (open, close, etc.) |
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order of web (pages, etc.)
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page
site server (saves/delivers) browser (views) |
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packet switching
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messages are broken into small pieces known as packages which are independently sent to their destination
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TCP
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Transmission Control Protocol
breaks down the file/data into the packets and reassembles @ destination |
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IP
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Internet Protocol
gets the packet to the destination |
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IP address
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identification for computers on the internet
4 #s ranging from 0-255 |
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HTML
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HyperText Markup Language
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subunits of CPU
speed? |
ALU (arithmetic logic unit) (math operations and comparing)
Registers (32) (shifting data up because of what you're using @ time) CU (control unit) (oversees the functions & controls data flow) 2.4 GHz |
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datapath
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connects ALU and registers, the cycle between these
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databus
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connects registers to main memory
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expansion bus
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connects RAM and the port
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BIOS
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Basic Input Output System, checks where, for example, the keyboard is
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RAM
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Random Access Memory
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ROM
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Read Only Memory
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CMOS
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battery operated chip that stores time/date and system hardware settings
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typical clock speed
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2.5 GHz
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