ITEC 1001- Hardware
Gigabyte
1 billion bytes, 1 pickup truck filled with books
Megabyte
1 million bytes, a short novel
Kilobyte
1 thousand bytes, 1/2 typed page
Petabyte
1,000 terabytes, 42,000 blu-ray discs
Video graphics array connectors
Analog connector used for monitors and televisions during the 1990s. Largely replaced by HDMI connectors. Since most LCD monitors and tvs now accept digital signals, VGA connectors are becoming rare. The photo shows a blue port.
Register
Extremely small piece of memory (size is measured in bits), located throughout the processor
Intel
Founded in 1968, this is the world's largest manufacturer of processors
AMD
Founded in 1969, this company's technology is featured inside every major next-generation gaming console and home entertainment system: Microsoft's Xbox One, Sony's PS4, and Nintendo's WiiU
Nvidia
Founded in 1993, produces popular mobile device processors
Common types of servers
Network, file, and web
Boot process
The device is powered on and the CPU activates BIOS, the Power-On Self-test is executed, the OS is loaded into RAM, the OS checks the registry settings and loads saved configuration settings
Bus
a channel in which information flows inside a computer
Sold in categories such as CAT5e (enhanced) or CAT6, - cable is commonly used for connecting devices in a network.
ethernet
RAM (Random Access Memory)
is memory that's connected to the processor via the memory or the front side bus
L1 cache
located directly on the processor itself
L3 cache
located next to the processor
Frequency
measured in hertz
L1 cache
memory located on the processor itself
Gigahertz
one billion cycles per second
Megahertz
one million cycles (instructions) per second
Connector
specialized end of a cable or device that plugs into a port, USB is one of the most popular types
Disk cache
used to increase disk efficiency
Most phones have - at least GB of RAM, most laptops have at least - GB of RAM
2 GB, 4 GB
Earphone jacks use - plugs
3.5 mm
Unicode
A coding standard using at least 16 bits to represent a character of information, represents languages all over the world
Server
A computer system in a network shared by multiple users
Protocol
A set rules for communication between devices that determines how data is transmitted and recieved
High-Definition Multimedia Interface (HDMI)
A standard interface for audio-video connectivity which allows for the transmission of high-definition audio and video signals
Plug and Play
A technology that allows the OS to detect and configure peripherals without downloading software or drivers
Thunderbolt
A type of Firewire port, commonly found on Apple computers.
Bus with
Amount of data a bus can carry, wider bus= faster data transfer
USB
Universal serial bus. Allows for data transfer between devices and for devices to be electrically charged
Memory cache
a relatively small area of memory (measured in kilobytes or megabytes) quickly accessible by a processor
Clockspeed
also referred to as clockrate
Wordsize
amount of data a processor can hold and process at one time
Bus width is measured in these
bits
1 Gigabyte
equal to approximately 1 billion bytes
1 Terabyte
equal to approximately 1 trillion bytes, 50,000 trees turned into paper and printed
