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