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A ____ is an input device that collects specific data directly from the environment and transmits it to a computer. sensor. What is the definition of a softcopy?. data in electronic form. An output device must be used in order to view a softcopy. Printed output is referred to as a (an):.

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slide1
A ____ is an input device that collects specific data directly from the environment and transmits it to a computer
  • sensor
what is the definition of a softcopy
What is the definition of a softcopy?
  • data in electronic form.
  • An output device must be used in order to view a softcopy.
pixel is short for
Pixel is short for?
  • Picture element
what factors affect screen clarity
What factors affect screen clarity?

Dot pitch

Resolution

Color depth

Refresh rate

what is the definition of resolution
What is the definition of resolution?
  • The number of pixels (dots) per square inch.
what type of monitor takes up less room on a desk
What type of monitor takes up less room on a desk?
  • CRT or
  • Flat-panel display?
  • Flat-panel display
the higher the the better the screen image
The higher the ____ the better the screen image.
  • Color depth
  • Resolution
  • Refresh rate
the number of times per second that the pixels are recharged so that their glow remains bright
The number of times per second that the pixels are recharged so that their glow remains bright.
  • Refresh rate
the amount of information expressed in bits that makes up the color of a pixel is called
The amount of information, expressed in bits, that makes up the color of a pixel is called?
  • Color depth
monitors fit in one of two possible categories what are these categories
Monitors fit in one of two possible categories. What are these categories?
  • CRT
  • Flat-panel display
crt stands for
CRT stands for?
  • Cathode Ray Tube
the three types of flat panel display screens are
The three types of flat-panel display screens are?
  • Active-matrix
  • Passive-matrix
  • Gas plasma
slide21
With what type of flat-panel display screen is each pixel on the screen controlled by its own transistor.
  • Active-matrix display
how is the active matrix display screen and the passive matrix display screen different
How is the active-matrix display screen and the passive-matrix display screen different?
  • With the active-matrix each pixel on the screen controlled by its own transistor and with the passive-matrix each row or column of pixels on the screen is controlled by one transistor.
  • The active-matrix screen is more expensive.
  • The active-matrix screen has a better image.
dpi stands for
dpi stands for ?
  • dots per inch
a sensor is
A sensor is
  • an input device that collects specific data directly from the environment and transmits it to a computer.
a printer fits in one of two categories what are those two categories
A printer fits in one of two categories. What are those two categories?
  • Impact printer
  • Non-impact printer
the term non impact in reference to printers means what
The term non-impact in reference to printers means what?
  • It forms characters and images without direct physical contact between the printing mechanism and the paper
slide33
What type of printer uses a drum treated with magnetically charged toner in order to transfer an image onto paper?
  • laser
slide34
What type of printer uses colored waxes and heat to produce images by burning dots onto special paper.
  • Thermal printer
what is the purpose of a modem
What is the purpose of a modem?
  • To convert Digital Signals to Analog Signals & Back
modem is short for
Modem is short for
  • modulate/demodulate.
sending modem does what
Sending modem does what?
  • converts digital signals into analog signals for transmission over phone lines (i.e. modulates).
what type of modem demodulates i e converts analog signals back into digital signals
What type of modem demodulates (i.e. converts analog signals back into digital signals.
  • Receiving modem
slide41

The use of television video and sound technology to make it possible for people in different locations to see, hear, and talk with one another is called?

  • Videoconferencing
what is groupware
What is Groupware ?
  • Software that makes it possible for teams of co-workers to use networks of microcomputers to share information and to cooperate on projects.
slide43
The term that refers to working at the office using telecommunication technology so that one can work at the office while at home.
  • Telecommuting
what does the term virtual office mean
What does the term “Virtual Office” mean.
  • An office that exists electronically and does not exist in a physical sense.
a digital signal consists of
A digital signal consists of ?
  • A series of 1’s and 0’s.
what are the three methods of wired communication
What are the three methods of wired communication
  • Twisted-pair
  • Coaxial cable
  • Fiber-optic cable
between these three methods of wired communication
Between these three methods of wired communication,
  • Twisted-pair
  • Coaxial cable
  • Fiber-optic cable

which one is least expensive?

  • Twisted-pair
between these three methods of wired communication50
Between these three methods of wired communication,
  • Twisted-pair
  • Coaxial cable
  • Fiber-optic cable

which one is resistant to interference?

  • Fiber-optic cable
between these three methods of wired communication51
Between these three methods of wired communication,
  • Twisted-pair
  • Coaxial cable
  • Fiber-optic cable

which one transmits data at the slower rate?

  • Twisted-pair
between coaxial cable and twisted pair wiring which one is more resistant to interference
Between coaxial cable and twisted-pair wiring, which one is more resistant to interference?
  • Coaxial cable
between coaxial cable and twisted pair wiring which one transmits data at a faster rate
Between coaxial cable and twisted-pair wiring, which one transmits data at a faster rate?
  • Coaxial cable
between these three methods of wired communication55
Between these three methods of wired communication,
  • Twisted-pair
  • Coaxial cable
  • Fiber-optic cable

which one transmits data at the faster rate?

  • Fiber-optic cable
between these three methods of wired communication56
Between these three methods of wired communication,
  • Twisted-pair
  • Coaxial cable
  • Fiber-optic cable

which one is the most expensive?

  • Fiber-optic cable
between these three methods of wired communication57
Between these three methods of wired communication,
  • Twisted-pair
  • Coaxial cable
  • Fiber-optic cable

which one is more secure?

  • Fiber-optic cable
what is the definition of a network
What is the definition of a network?
  • two or more computers connected together using communications equipment.
list some benefits of a network
List some benefits of a network
  • Peripheral devices can be shared.
  • Data and programs can be shared.
  • Makes communication easier.
  • Increases security
wan stands for
WAN stands for?
  • Wide Area Network
slide61
A network that covers a large geographical area, such as a country or the world is the definition of a (an)?
  • WAN
lan stands for
LAN stands for?
  • Local Area Network
what is the definition of a lan
What is the definition of a LAN?
  • A network connecting computers and devices in a limited geographical area. For example, within a building.
a central computer within a network that controls the network is called a
A central computer within a network that controls the network is called a ___.
  • Host computer
what is a node
What is a node?
  • any device that is attached to a network.
what is a backbone
What is a backbone?
  • a high-speed network that connects smaller networks to the Internet.
what is the definition of a c lient
What is the definition of a client?
  • microcomputers that request data from a server.
software and hardware used to block unauthorized users from accessing a network is called
Software and hardware used to block unauthorized users from accessing a network is called ___.

A firewall

slide71
An organization’s internal private network that uses the infrastructure and standards of the Internet and the web is called ?
  • Intranet
what is a peer to peer lan
What is a peer-to-peer LAN
  • A network in which microcomputers communicate directly with one another without the use of a server.
what is the operating system
What is the Operating System
  • Manages the basic operations of the computer.
  • A set of programs that manages the interaction between hardware and software
  • In order to run other programs, the OS loads these programs into memory.
what is a user interface
What is a “user interface”
  • The display on your computer screen that you use in order to interact with your computer.
the memory sizes in order from smallest to largest are
The memory sizes in order from smallest to largest are
  • Bit
  • Byte
  • Kilobyte
  • Megabyte
  • Gigabyte
  • Terabyte
  • Petabyte
what is a bit
What is a bit?
  • a 0 or a 1

(no signal, signal)

(no current, current)

what is a byte
What is a Byte?

A series of 8 bits.

a kilobyte is
A Kilobyte is ____?

210 Bytes

210 Bytes is approximately _____ Bytes?

103

a place to plug in additional circuit boards in order to increase a computer s capabilities
A place to plug in additional circuit boards in order to increase a computer’s capabilities

Expansion slot

processor speeds are measured in
Processor speeds are measured in
  • MHz – megahertz – million cycles per second
  • GHz – gigahertz – billion cycles per second
  • MIPS – Millions of Instructions Per Second
  • FLOPS - Floating-point Operations Per Second
what is a program
What is a program?
  • A list of instructions that a computer follows in order to carry out a task.
what are the two categories of software
What are the two categories of software?
  • System software
  • Application software
the cpu consist of
The CPU consist of:
  • Control unit
  • ALU
  • Registers.
slide97
___ is temporary storage (high-speed memory) that holds data and instructions that are used most frequently.

Cache

what is hardware
What is hardware?

All the machinery and equipment in a computer system

(Tangible)

what is software
What is software?

All the instructions that tell the computer how to perform a task (Intangible)

system software consists of
System software consists of ___?
  • Operating System
  • Utility Programs
  • Device Drivers
what is ram
What is RAM?

Computer circuitry that temporarily holds data waiting to be processed and after it has been processed

what are some other names for ram that you may hear people say
What are some other names for RAM that you may hear people say?

Primary storage

Primary memory

Memory

Temporary storage

ram stand for
RAM stand for ____?

Random Access Memory

what are the two categories of storage
What are the two categories of storage?
  • Primary storage
  • Secondary storage
what is secondary storage
What is Secondary Storage?
  • A device intended to permanently hold (store) data.
what is a web browser
What is a web browser ?

software that enables users to view web pages

what is a url
What is a URL?

a string of characters that represents a location of a specific piece of information located on a web server.

url stands for
URL stands for ____?

Uniform Resource Locator

the url consists of
The URL consists of ____?
  • the web protocol
  • the name of the web server
  • the directory on that server
  • the file within that directory.
given
Given:

http://www.w3.org/Graph/SVG/index.htm

  • What is “www.w3.org” ?

domain name

  • What is “Graph” ?

folder name

  • What is “SVG” ?

folder name

  • What is “index.htm” ?

file sent over by the server that will be viewed through the browser

what is a protocol
What is a protocol?

A program used by computers in order to communicate

what is html
What is HTML?

language used for creating web pages

(not a programming language)

what is the world wide web
What is the World Wide Web?

One use of the Internet encompassing all things (hardware, software, files) dealing with web pages.

what is the internet
What is the Internet?

A global network of networks.

what does upload mean
What does ‘upload’ mean?

to transfer a file from a local computer to a remote computer

what does download mean
What does ‘download’ mean?

to transfer a file from a remote computer to a local computer

if you tend to have a lot of programs up and running simultaneously you will need a lot of
If you tend to have a lot of programs up and running simultaneously, you will need a lot of ____ .

memory (RAM)

if you have a lot of large files music video pictures etc to store you will need a lot of
If you have a lot of large files (music, video, pictures etc.) to store, you will need a lot of ____.

secondary storage (hard disk space)

referring to a processor
Referring to a processor

2.00GHz, 4MB L2, 667MHz FSB

2.00GHz – clock speed of processor Level 1 (L1) cache

Level 2 (L2) cache

FSB – Front-Side Bus speed

keep learning
Keep Learning

Keep searching (but, check your sites carefully)

http://computer.howstuffworks.com/

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