Tech Support Fundamentals Flashcards
To take a relatively complex system and simplify it for our use.
Abstraction
A series of steps that solves specific problems.
Algorithm
The oldest character encoding standard used is ______. It represents the English alphabet, digits, and punctuation marks.
ASCII
The communication that a computer uses is referred to as ________ system, also known as base-2 numeral system.
Binary System
A group of 8 bits
Byte
Is used to assign our binary values to characters so that we as humans can read them.
Character Encoding
A device that stores and processes data by performing calculations.
Computer
The overarching discipline that covers the practice of coding and hiding messages from third parties.
Cryptography
In the decimal system, there are 10 possible numbers you can use ranging from zero to nine.
Decimal form-base 10 system
The growing skills gap between people with and without digital literacy skills.
Digital Divide
The use of digital technology, like computers and the internet, to store and process data into useful information.
Information Technology
_______ is one of the largest open-source operating systems used heavily in business infrastructure and in the consumer space.
Linux OS
Allow transistors to do more complex tasks, like decide where to send electrical signals depending on logical conditions.
Logic Gates
This means the developers will let other developers share, modify, and distribute their software for free.
Open Source
Allows computing to go mobile.
PDA (Personal Digital Assistant)
A sequence of cards with holes in them to automatically perform calculations instead of manually entering them by hand.
Punch Cards
RGB or red, green, and blue model is the basic model of representing colors.
RGB Model
The most prevalent encoding standard used today.
UTF-8
A program that translates source code into machine code.
Compiler
This gate only has ONE input signal. It takes that input signal and outputs a signal with the opposite binary state.
NOT Gate
This gate involves two input signals. Outputs an “ON” signal only when both inputs are “ON”.
AND Gate
This gate involves two input signals. Outputs an “OFF” signal only when both inputs are “OFF”
OR Gate
This gate involves 2 input signals. Outputs an “ON” signal when ONLY ONE of the inputs are “ON” (but not both).
XOR Gate
This gate involves 2 inputs. Outputs an “OFF” signal only when both inputs are “on”.
NAND Gate
This gate involves 2 input signals. Outputs and “ON” signal only when both the inputs are the same (both “ON” or both “OFF”).
XNOR Gate
What are the 4 main layers of a computer?
*Hardware
*Operating System
*Software
*User
Connection points that we can connect devices to that extend the functionality of our computer.
Ports
The brain of our computer. It does all the calculations and data processing.
Central Processing Unit (CPU)
Our computer’s short term memory.
Random Access Memory (RAM)
Holds all of our data, which includes all of our music, pictures, and apps.
Hard Drive
The body or circulatory system of he computer that connects all of the pieces together.
Motherboard
Converts electricity from out wall outlet onto a format that our computer can use.
Power Supply
Instructions that tell the computer what to do.
Programs
A row of wires that interconnect the parts of our computer.
External Data Bus (EDB)
Connects the CPU to the MCC. Sends over the location of the data, but not the data itself.
Address Bus
A bridge between the CPU and RAM.
Memory Controller Chip (MCC)
Smaller than RAM but it lets us store data that we use often and lets us quickly reference it.
Cache
The maximum number of clock cycles that something can handle in a certain time period.
Clock Speed
