Chapter 1: Definitions Flashcards
(35 cards)
How many parts of IT are there and what are they?
2 parts of IT: Computer technology and communications technology
Computer technology
programmable, multi-use machine that accepts data (raw facts and figures) and processes, manipulates it into information we can use
Communications technology
aka telecommunications; consists of electromagnetic devices and systems for communication over distance
aka “electronic mail”; messages transmitted over a computer network (most often the Internet) used to book appointments with professors, discuss grades and get clarification
What are the uses and misuses in technology in education?
Uses: email, online learning, tutoring via avatars
Misuse: texting, surfing, sharing assignments
Telemedicine
medical care delivered via telecommunications (doctors treating patients from faraway)
Virtual
something that is created, simulated, or carried on by means of a computer or computer network but also that it seems almost real
Database
a computer system with a collection of interrelated files
Electronic voting
voting using computer technology and a touch screen
Internet
worldwide computer network that connects hundreds of thousands of smaller networks
World wide web
interconnected system of Internet computers (called servers) that support specifically formatted documents in multimedia form
Downloading
transferring data from a remote computer to one’s own computer/mobile device
Uploading
transferring data from your own device to a remote computer
What are the 5 basic computers?
supercomputer, mainframes, workstation, microcomputers, microcontrollers
Supercomputer
high-capacity machines with thousands of processors that can perform more than several quadrillion calculations per second, most expensive/fastest computers
Mainframes
water or air-cooled computers that are very expensive and vary in size depending on their use
Workstations
expensive, powerful, personal computers used for complex, scientific, mathematical and engineering calculations and for computer-aided design and computer-aided manufacturing
Microcomputers
aka personal computers, can fit next to a desk and can be carried around (eg. desktop pcs, notebooks etc.)
Microcontrollers
aka embedded computers, tiny, specialized microprocessors installed in “smart” appliances and automobiles
Servers
aka network servers, central computer that holds collections of data (databases) and programs for connecting or supplying services to PCs, workstations, and other devices called clients
What are the 3 key concepts to how computers work?
- Data is turned into information
- Hardware/software have their own specific functions
- All computers involve input, processing, storage, output, communications
Data
consists of raw facts/figures that are pressed into information
Information
data that has been summarized or transformed for use in decision making
Hardware
all the machinery/equipment in a computer system