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24 Cards in this Set
- Front
- Back
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Units of memory
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bit
byte kilobyte megabyte gigabyte terabyte |
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vonNeumann architecture
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1. CPU
2. input/output 3. storage |
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Computer
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receives, stores, processes
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CPU
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(central processing unit) fetches and executes
average 2.5-3 gHz per second |
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Memory
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primary and secondary
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Primary memory
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RAM
(faster and closer) temporary volatile 8gB of capacity electric digital (on/off) ONLY LASTS WHULE POWER IS ON |
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Secondary memory
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hard disk drive
typical capacity is 500gB permanent and nonvolatile magnetic operates in binary |
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Operating system
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hardware, software talk to each other
works with memory delete copy move open ex. windows |
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packet switching (tcp) (ip)
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messages to be sent over the network are first broken into small pieces known as packets which are then sent independently to their final destination.
*content and address tcp: transmission control protocol which breaks down the message into packets and then puts it back together ip: (internet protocol) routes to the destination (four numbers separated by a dot 0-255) |
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web browser
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software, explorer or firefox
TRANSLATES AND INTERPRETS HTML CODE VIEW A WEBPAGE brings in content and looks at the format |
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HTML
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hypertext markup language
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website
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a bunch of webpages linked together
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web page
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written in html
document on the internet |
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webserver
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hardware, computer that allows you to...host, store, save websites
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CPU subunits
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ALU
Control Unit Registers |
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Databus
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connects RAM and CPU
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Expansion bus
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connects USB and RAM
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Data path
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connects ALU to registers
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BIOS
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basic input/output system
monitor, keyboard, mouse, hard drive finds everything |
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CMOS
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generates electricity
analog circuits time/date/passwords |
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ROM
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smaller than RAM
nonvolitle can't change what's there |
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ALU
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arithmetic logic unit
computations |
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registers
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small storage
inside cpu fast holds instructions and data |
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RAM
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4gB
holds data and files electrical primary storage for main memory |
