ISTM #2
Bus Lines
Pathways powered by software that transfer data between components
Width
Bus lines are measured by _______
True
True or False: The wider the bus line, the more efficient it is
Types of Bus Lines
- PCI
- AGP
- USB
- Firewire
Walmart Analogy
Walmart's distribution center = The Microprocessor
The land that the center sits on = The Motherboard
The streets leading to the center = Bus Lines
The Binary System
How can the 2 state system of a computer be represented?
"0" and "1"
What is used to represent "off" and "on" in the binary system?
A Bit
What is a binary digit referred to as?
Positive("1") and Negative Bits("0")
The CPU is only ever dealing with ___________________
8
How many bits in a byte?
Nibble
4 bits
Kilobyte
1024 bytes
Megabyte
1000 kilobytes
Gigabyte
1000 megabytes
EBCDIC
What coding scheme do mainframe computers use?
American Standard Code for Information Interchange (ASCII)
What coding scheme do most microcomputers use to translate commands to the binary system?
One
How many bytes per character in ASCII?
Unicode
What coding scheme is used for Japanese and Chinese computers?
Two
How many bytes per character in unicode?
Positional Notation
A digits value to a number is based on position
(in the tens, hundreds, & thousands place)
32 bits
How many bits equal an integer (whole #)?
input/output devices
keyboard or monitor or printer or headphones
translate input into 1's and 0's, turns 1's and 0's into output
Input
Data that enters the computer (typing on the keyboard)
Output
Image on a screen, printed out paper, something that a human can understand
BIOS
Basic input/output system
Firmware that finds and enables the OS
BIOS
After a computer gets power, it searches for what?
Firmware
Unchangeable Programming
Internal Hard Drive
Non-volatile, so it saves stuff even when computer is off
ROM
Read only memory firmware
Code to start/boot system
Primary storage is
Volatile, so data isn't retained when computer is off
(RAM)
Secondary storage is
Non-volatile
(Internal Hard Drive)
Filing Cabinet Analogy
Filing cabinet is secondary storage and the files on your desk are RAM. Once you're done with the files you put it back in the cabinet
Transmission Control Protocol/Internet Protocol
TCP/IP
TCP/IP
Set of rules for transferring info between computers
(AKA a Network)
Like traffic lights to ensure safety
Packets
TCPIP breaks files into ____ when passing between computers
Diffusion
Acceptance of an acknowledged problem
Digital Versatile Disk
DVD
Redundant Array of Independent Discs
RAID
RAIDs
Basically backup computers
Magnetic Tape
What storage device is considered the slowest?
Magnetic Tape
What storage device is read sequentially?
Magnetic Tape
TAMU puts their data on what?
(Stored in Dallas)
Linus Torvalds
Who started Linux?
PC's are cheaper
Why does Windows dominate the market?
Ribbons
Microsoft replaced menus with what?
Windows
What is the dominant OS in the operating system market?
Bill Gates and Paul Allen
Who made Microsoft?
Disaster Recovery Plan
DRP
DRP
TAMU does one _____ a year
Brennan's DRP
Pre-Katrina: 2 pages.
Post-Katrina: 65 pages
Runs inventory 4 days before storms and 10 employees' phones are based out of Idaho
Financial Services Business
FSB
Seattle
Amazon opened first Brick-and-Mortar Bookstore in what city?
Faster Delivery
Why will it be an advantage for Amazon to have a physical store?
Fibertown
Mass storage place in Bryan
- Low Cost
- Cable Lines Installed by the Railroad Tracks
Why is Bryan a good place for fiber town?
Biometrics
-Finger print scan
-Retina scan
Tier 4
Fiber town is a ______ company.
(guarantees 99% availability)
Siri
What is an alternative to keyboards?
Green PCs
Environmentally friendly computer systems
Green computing
The practice of using computing resources efficiently and reducing waste is called what?
Standby Mode
Which PC mode uses the least amount of power?
Electronic Product Environmental Assessment Tool
EPEAT
EPEAT
Online tool that helps large institutions purchase, select, and compare computers based on their environmental attributes
28
How many of EPEAT's criteria are optional?
GEC
(G-Eazy)
Who manages EPEAT?
Product Longevity
Which EPEAT criteria ask manufacturers to design products that can be upgraded with common tools?
1992
When was Energy Star funded?
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