Chap 1 Flashcards by Onico Chan

Computer

A computer is an electronic device, operating
under the control of instructions stored in its own
memory

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Types of Computers

Supercomputers.
– Most powerful computers.
* Mainframe computers.
– Process large amounts of data.
* Midrange computers.
– Servers.
* Personal computers.
– PCs.
– Five types of PCs

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Five types of PCs

-Tablet
-Desktop
-Smartphones
-Laptop
-Wearables

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Input Device

translate data into computer language.
Examples : Keyboard

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Pointing device

an input device that allows a user to
control a small symbol on a screen, called the pointer

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Scanner

a light-sensing input device that converts
printed text and images into a form the computer can
process

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output device

is any hardware component that
conveys information from a computer or mobile
device to one or more people (ex: printer)

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printer

output device that produces text
and graphics on a physical medium, such as paper
or other material

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display (monitor)

output device that visually
conveys text, graphics, and video information

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Speakers

allow you to hear audio such as music,
voice, and other sounds
– Earbuds
– Headphones

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Memory

consists of electronic components that
store instructions waiting to be executed and the
data needed by those instructions

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Storage device

records (writes) and/or retrieves
(reads) items to and from storage media
Ex :
Hard Disk
Solid-State Drive
USB Flash Drive
Memory Card
Optical Disc
Cloud Storage

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Internet

a worldwide collection of computer
networks that connects millions of businesses,
government agencies, educational institutions, and
individual

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web

consists of a worldwide collection of
electronic documents, each of which is called a
webpage

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website

a collection of related webpages

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web server

a computer that delivers
requested webpages to your computer or mobile
device

browser

software that enables users with an
Internet connection to access and view webpages
on a computer or mobile device

search engine

software that finds websites,
webpages, images, videos, news, maps, and other
information related to a specific topic

online social network

called a social networking site, is a website that encourages members in its online community to share their interests, ideas, stories, photos, music, and videos
with other registered users

Green computing

involves reducing the electricity
consumed and environmental waste generated
when using a computer

Software

called a program, tells the
computer what tasks to perform and how to
perform them

System Software

Operating system
Tools

Applications

Installing a program is the process of setting up the
program to work with a computer or mobile device,
printer, and/or other hardware
* Once installed, you can run a program so that you
can interact with it
* You interact with a program through its user
interface

communications technologies

– Chat rooms
– Email
– Fax
– FTP
– GPS
– Instant messaging
– Internet
– Newsgroups
– RSS
– Videoconference
– Voice mail
– VoIP

communications device

hardware capable of transferring items from computers and devices to transmission media and vice versa

Examples of wireless communications technologies

Wireless technology Bluetooth Cellular radio

network

collection of computers and devices connected together, often wirelessly, via communications devices and transmission media

Home Networks

– Connect to the Internet – Share a single high-speed Internet connection – Access photos, music, videos, and other content – Share devices – Play multiplayer games – Connect game consoles to the Internet – Subscribe to and use VoIP – Interact with other devices in a smart home

Business Networks

– Facilitate communications – Share hardware – Share data, information, and software

Forces of Technology

Cloud computing -Computer on the internet -access to more resourses Wireless technology - changing the way we communicate Internet of Things (IoT) -Continuing development of the Internet -Allowing all types of devices to communicate

Digital literacy

acquiring current knowledge and understanding of computers, mobile devices, the web, and related technologies.

digital citizen

a person familiar with how to use technology to become an educated and productive member of the digital world.

Wi-Fi

(short for wireless fidelity) is a wireless data network technology that provides high-speed data connections and is not attached to any device. It is used for mobile devices.

server

a powerful, high-capacity computer you access using the Internet or other networks; it stores files and “serves” them, that is, makes the files available to users; usually grouped at a location called a data center.

online social network

an online community where users can share their interests, ideas, stories, photos, music, and videos with other registered users via a social networking website, such as Facebook, Google Plus, Twitter, Instagram, or Snapchat.

Big data

a term that refers to the large and complex data sources that defy easy management with traditional data processing methods.

Internet of Things (IoT)

an environment in which processors are embedded in every product imaginable (things), and these things, in turn, communicate with one another via the Internet or wireless networks.

IoT-enabled devices

often referred to as smart devices because of their capability to communicate, locate, and predict.

Telemedicine

the use of telecommunications technology, including secure web-based videoconferencing, to diagnose and treat patients remotely, which provides rural or remote patients access to doctors when an in-person medical visit is not possible.