Lesson 3: Evaluating Hardware: For Home and Work (part 2) Flashcards
Data that has been processed into a useful form
Output
Any type of hardware component that conveys information to one or more people
Output device
Visually conveys text, graphics, and video information
Display device
This is packaged as a separate peripheral (LCD monitor, widescreen)
monitor
Uses a liquid compound to present information on a display device
Liquid crystal display (LCD)
The number of horizontal and vertical pixels in a display device
Resolution
This controls the manipulation and display of graphics on a display device
graphics processing unit (GPU)
Display devices that use gas plasma technology and offer screen sizes up to 150 inches
Plasma monitors
Digital television (DTV) offers a crisper, higher-quality output. ______ is the most advanced form of digital television
HDTV
A desktop monitor that contains cathode-ray tubes & have a much larger footprint than do LCD monitors
CRT monitor
This produces text and graphics on a physical medium
printer
Forms characters and graphics on a piece of paper without actually striking the paper
nonimpact paper
Forms characters and graphics by spraying tiny drops of liquid ink onto a piece of paper
ink-jet printer
Produces color photo-lab quality pictures; mostly uses ink-jet technology
photo printer
A single devices that prints, scans, copies, and in some cases, faxes
multifunctional peripheral (MFP)
Generates images by pushing electrically heated pins against the heat-sensitive paper
thermal printer
A small, lightweight, battery-powered printer that allows a mobile user to print from a notebook computer, smart phone, or other mobile device
mobile printer
A small printer that prints on adhesive-type material
label printer
Used to produce high-quality drawings
Plotters
These create photo-realistic quality color prints on a larger scale
Large-format printers
Produces printed images when tiny wire pins on a print head mechanism strike an inked ribbon
Dot-matrix printer
Prints an entire line at a time
Line printer
Speakers that cover or are placed outside of the ear
Headphones
Rest inside the ear canal
Earbuds (earphones)
This occurs when you hear a person’s voice or when the computer talks to you through the speakers
Voice output
A device that takes text and images displaying on a computer screen and projects them on a larger screen
data projector
Resembles a dry-erase board, displays the image on a connected computer screen
interactive whiteboard
This holds data, instructions, and information for future use
Storage
The physical material on which a computer keeps data, instructions, and information
storage medium
The number of bytes a storage medium can hold
Capacity
The computer hardware that records and/or retrieves items to and from storage media
storage device
The process of transferring items from a storage medium into memory
Reading
The process of transferring items from memory to a storage medium
Writing
Contains one or more inflexible, circular platters that use magnetic particles to store data, instructions, and information
hard disk
The process of dividing the disk into tracks and sectors so that the operating system can store and locate data and information on the disk
Formatting
This occurs when a read/write head touches the surface of a platter
head crash
A group of two or more integrated hard disks
RAID (redundant array of independent disks)
A server connected to a network with the sole purpose of providing storage
NAS (network attached storage)
consists of a special-purpose chip and electronic circuits that control the transfer of data, instructions, and information from a disk to and from the system bus and other components of the computer
disk controller
A type of solid state media and contain no moving parts
Flash memory chips
A removable flash memory device that you insert and remove from a slot in a computer, mobile device, or card reader/writer
memory card
A removable device that fits in an ExpressCard slot; developed by PCMCIA & commonly used in notebook computers
ExpressCard module
An Internet service that provides storage to computer users
Cloud storage
Consists of flat, round, portable disc made of metal, plastic, and lacquer that is written and read by a laser
optical disc
Can be read from but not written to
CD-ROM (read from CD-ROM drive or CD-ROM player)
A multisession optical disc on which users can write, but not erase
CD-R
An erasable multisession disc; must have CD-RW drive
CD-RW
- Stores photos from an online photo center
- Resolution usually is 7200 pixels per photo
- Cost is determined by the number of photos being stored
Archive disc
- Single-session CD-ROM that stores digital versions of film
- Typically uses a 1024x1536 resolution
- Many photo centers offer Picture CD services
Picture CD
High-capacity disc on which users can read but not write or erase; requires DVD-ROM drive
DVD-ROM
Has a storage capacity of 100 GB
Blu-ray Disc-ROM (BD-ROM)
High-capacity rewritable DVD formats
DVD-RW, DVD+RW, and DVD+RAM
Magnetically coated ribbon of plastic capable of storing large amounts of data and information
Tape
Reads and writes data into information on a tape
Tape drive
Contains a magnetic stripe that stores information
Magnetic stripe card
Stores data on a thin microprocessor embedded in the card
Smart card
These store microscopic images of documents on a roll or sheet film
Microfilm and microfiche
