CIT 101 Chapter 4-6

48 terms by magictony

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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.

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