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61 Cards in this Set

  • Front
  • Back
ACCESS TIME
Measurement of the time it takes to read data, instructions and information from memory
ALU
Acronym for arithmetic logic unit, component of a processor that performs arithmetic, comparisons and other operations
BIOS
Basic input/output system; firmware that contain the pc startup instructions
BOOT DRIVE
drive from which a personal computer boots from (start)
BUS
electrical channel that transfer electronic bits internally w/ in the circuitry of a computer allowing devices inside and attached to communicate with each other
CLOCK CYCLE
One tick/electronic pulse of the system clock
CLOCK SPEED
Pace of the system clock, measured measure by the number of clicks per second
CLUSTERS
smallest unit of disk space that stores data and information.
CPU/Microprocessor
Central processing unit. Electronic component on a computers motherboard that interpret and carries out basic instructions that operate the computer.
DATA
Collection of unprocessed items, which include text numbers images audio video.
DATA MINING
Process used with data warehouses to find patterns and relationships among data
DATABASE
Collection of data organized in a manner that allows access, retrieval and use of that data
DATABASE HIERARCHY
Data is stored in layers; each higher level contains one or more items from a lower level. files, records. fields, characters
DBMS
data base management system. database software allowing modification of data and allow users to create forms and reports
DENSITY
Number of bits in an area on a storage medium
DEVICE DRIVER
Small program that tells an operating system how to communicate with a specific device.
DISK DEFRAGMENTER
Utility that reorganizes the files and unused space on a computers hard disk so that the operating system accesses data more quickly and programs run faster
ENCRYPTION
The process of encoding data and information to an unreadable form
EXPANSION CARDS
Circuit board that enhances functions of a component of a system unit and or provides connections to peripherals
FIELD TYPE/DATA TYPE
Specifies the kind of data a field in a database can contain and how the field can be used.
FILE COMPRESSION UTILITY
Utility program that shrinks the size of a file so that the file takes up less storage space than the original file ie zio file
FILE CONVERSION UTILITY
utility program that will allow you to convert folders of files into any different formats
FIRMWARE
ROM chips that contain permanently written data, instructions, or information, recorded on the chips when they were manufactured
FORMATTING
process of dividing a disk into tracks and sectors so that the operating system can store and locate data and information on the disk
HEAT SINK
Small ceramic or metal component with fins on its surface that absorbs and ventilates heat produced by electrical components
HYBRID NETWORK
two different basic network topologies are connected. Two common examples for Hybrid network are: star ring network and star bus network
INFORMATION
processed data that conveys meaning and is useful to people
IP ADDRESS
a number that identifies each computer or device connected to the internet
LAN
local area network. network that connects computers in a limited geographical area such as home, school, or building. each pc is a node
MAN
Metropolitan area network. connects LAN in a metropolitan area.
WAN
wide area network. large geographical area. internet is one large WAN
MEMORY MANAGEMENT
operating system activity that optimizes the use of random access memory
MOTHERBOARD DIAGRAM
main circuit board of the system unit which has some electronic components attached to it and others built into it
MS ACCESS
relational database management system from Microsoft that combines the relational Microsoft Jet Database Engine with a graphical user interface and software-development tools
NETWORKS
collection of computers and devices connected together allowing computers to share resources
NIC
network interface card. communications device that enables a computer or device that does not have built in networking capability to access a network
PACKETS
small pieces into which messages are divided by TCP/IP (TRANSMISSION CONTROL PROTOCOL)
PERIPHERAL
device that connects to a system unit and is controlled by the processor in the computer
PHISHING
scam in which a perpetrator attempts to obtain your personal and/or financial information
PLATFORM
set of programs containing instructions that coordinate all the activities among computer hardware resources
PLUG AND PLAY
technology that gives a computer the ability to configure adapter card and other peripherals automatically
PRIMARY KEY
field in a data base that uniquely identifies each record in a file
PRIMARY STORAGE
Primary storage (or main memory or internal memory), often referred to simply as memory, is the only one directly accessible to the CPU. The CPU continuously reads instructions stored there and executes them as required. Any data actively operated on is also stored there in uniform manner.
PROTOCOL
standard that outlines characteristics of how two network devices communicate
RAM
random access memory. memory that can be read from and written to by the processor. programs and data are loaded in RAM and stay in RAM as long as the computer is running. volatile
READING
process of transferring data, instructions and information from a storage medium into memory
REFRESH RATE
indicates how many times per second a monitor screen image is renewed.
RELATIONAL DATABASE
database that stores data in tables that consist of rows and column having a primary key and each column having a unique name
ROM
read-only-memory. non-volatile memory that is used to store permanent data and instructions
ROUTER
communication device that connects computers or other routers together and transmits data to its correct destination on a network
SECTORS
the small arcs into which tracks on a disk are divided
SPYWARE
program placed on a computer without the users knowledge that secretly collects information about the user
SQL
structured query language. query language used with databases that allows users to manage, update, and retrieve data
SYSTEM CLOCK
small quartz crystal circuit that is used by the processor to control the timing of all computer operations.generates electronic pulses or ticks, that set the pace of components of the system unit
SYSTEM SOFTWARE
programs the control or maintain the operations of a computer and its devices
SYSTEM UNIT
case that contains the electronic components of a computer that are used to process data
TOKEN RING
network standard in which computers and devices on the network (LAN) share or pass a special; signal, called a toke, in a unidirectional manner and in a preset order
TRACK
narrow recording band that forms a full circle on the surface of a disk
VIRTUAL MEMORY
a portion of a storage medium, usually the hard disk, that the operating system allocates to function as additional RAM
WAN
wide area network. network that covers a large geographic area. city, country, or the world. using all communication channels that combine media such as telephone lines, cables, and radio waves
WRITING
process of transferring data, instructions, and information from memory to a storage medium