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48 terms

CIT 101 Chapter 4-6

STUDY
PLAY
Microprocessor
Some computer and chip manufacturers use the term of this to refer to a personal computer processor chip.
memory slot
This, on the motherboard hold memory modules.
L2 cache
this is slightly slower than L1 cache but has a much larger capacity, ranging from 64KB to 16MB.
access time
the amount of time it takes the processor to read data, instructions, and information from memory.
flash memory
a type of nonvolatile memory that can be erased electronically and rewritten.
peripheral device
a device that connects to the system unit and is controlled by the processor in the computer.
modem card
connects other computers through telephone lines, cable television lines, or other transmission media.
types of flash memory
memory cards, USB flash drives, and PC Cards/ExpressCard modules
ExpressCard slot
Many desktop computers, traditional notebook computers, and Tablet PCs, have a PC card slot or an Express Card slot, which is a special type of expansion slot that holds a PC card or "This" respectively.
types of usb connectors and ports
Hi-Speed USB, Firewire Ports, Bluetooth Port, SCSI Port, eSATA port, Irda Port, MIDI Port.
FireWire Ports
can be used to connect mice, printers, digital cameras, scanners, and the like.
system bus
also called the front side bus (FSB), is part of the motherboard and connects the processor to main memory.
bay
an opening inside the system unit in which you can install additional equipment.
power supply
the component of the system unit that converts the wall outlet AC power into DC power.
preventive maintenance
Can of compressed air, Lint-free antistatic wipes and swabs, screen cleaning solution or 50/50 mix of rubbing alcohol and water, small computer vacuum, antistatic wristband, small screwdriver.
Voice Input
the process of entering input by speaking into a microphone.
Audio input
the process of entering any sound into the computer such as speech, music, and sound effects.
pixel
(short for picture element) is the smallest element in an electric image.
Web cam
also called a PC video camera, is a type of digital video camera that enables a home or small business user to capture video and still images, send e-mail messages with video attachments, add live images to instant messages, boardcast live images over the internet, and make video telephone calls.
Output
data that has been processed into a useful form
display device
an output device that visually conveys text, graphics, and video information.
LCD monitor
a desktop monitor that uses a liquid crystal display to produce images.
Resolution
the number of horizontal and vertical pixels in a display device.
Plasma monitor
a display device that uses gas plasma technology, which sandwiches a layer of gas between two glass plates.
CRT Monitor
a desktop monitor that contains a cathode-ray tube.
non-impact printer
forms characters and graphics on a piece of paper without actually striking the paper.
laser printer
a high-speed, high-quality nonimpact printer, operating in a manner similar to a copy machine, a laser printer creates images using a laser beam and powdered ink, called toner.
dot-matrix printer
produces printed images when tiny wire pins on a print head mechanism strike an inked ribbon and is part of an impact printers.
audio output device
a component of a computer that produces music, speech, or other sounds, such as beeps.
ADA
Americans with Disabilities Act (ADA) requires any company with 15 or more employees to make reasonable attempts to accommodate the needs of physically challenged workers.
Secondary storage
A storage medium (media is the plural), also called this, is the physical material on which a computer keeps data, instructions, and information.
types of secondary storage media
hard disks, solid state drives, memory cards, USB flash drives, ExpressCard modules, optical discs, smart cards, magnetic stripe cards, and microfilm.
types of magnetic storage media
hard disks, diskette, and magnetic tape.
hard disk
Characteristics of this include capacity, platters, read/write heads, cylinders, sectors and tracks, revolutions per minute, transfer rate, and access time.
backup
a duplicate of a file, program, or disk placed on a separate storage medium that you can use in case the original is lost, damaged, or destroyed.
raid
A group of two or more integrated hard disks
disk controller
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 in the computer.
Types of disk controller
SATA, EIDE, SCSI, and SAS
Secure Digital Cards
uses Digital cameras, digital video cameras, smart phones, PDAs, photo printers, portable media players.
reader/writer
A device that reads and writes data, instructions, and information stored on memory cards.
Cloud storage
an internet service that provides hard disk storage to computer users.
DVD+rw
You can read, write, and erase data on this.
CD-ROM
holds from 650 MB to 1 GB of data, instructions, and information.
kodak picture cd
stores digital versions of film using a jpg file format.
DVD-rom
To read a DVD-ROM, you need a DVD-ROM drive or DVD player. Most DVD-ROM drives also can read audio CDs, CD-ROMS, CD-Rs, and CD-RWs. A DVD ROM uses one of three storage techniques. The first involves making the disc denser by packing the pits closer together.
HD vmd
Another High density format called "this" (Versatile Multilayer Disc) potentially will contain up to 20 layers, each of a capacity of 5 GB.
magnetic tape
a magnetically coated ribbon of plastic capable of storing large amounts of data and information at a low cost.
smart card
which is similar in size to credit card or ATM card, stores data on a thin microprocessor embedded in the card.