CGS 2100 EXAM 2 If you know the vocab from all the chapters then you will easily be able to answer all the questions on the exam BluRay Disc Read Only Memory An optical disc storage media format a method of optical storage for digital data developed for storing high expansion card that enables a computer to produce sounds that are the number of bits a video card uses to store data about each pxel on the the time it takes a storage device to locate its stored data a measurement used in comparing software and hardware the steady and constant pace at which a computer goes through small blocks of memory located directly on and next to the CPU Chapter 6 3D sound card omnidirectional or three dimensional Access time BD ROM disc for high definition video and data storage Benchmarks performance created using software applications that are specifically designed to push the limits of computer performance Bit depth monitor Blu ray disc definition media largest storage capacity of all optical storage options Cache memory chip that act as holding places for recently of frequently used instructions or data that the CPU accesses the most When these instructions or data are stored in the cache memory the CPU can more quickly retrieve them than if it had to access the instructions or data from random access memory Clock speed machine cycles measured in Hertz Core CPU usage Data transfer rate two nodes on a network usually measured in megabits per second DVD RAM one of three competing technologies for rewritable DVDs DVD ROM DVD R RW and rewrite data on the disc DVD R RW and rewrite data on the disc External SATA eSATA ExpressCard Front side bus FSB Graphics processing unit GPU displaying and calculating visual data such as shadows textures and luminosity Hard drive located inside the system unit or attached to the system unit via a USB port Head crash impact of read write head against magnetic platter of the hard drive often results in data loss DVD format in which data can only be read and not written one of two recognized DVD formats that enable you to read record a device that holds all permanently stored programs and data can be one of two recognized DVD formats that enables you to read record the maximum speed at which data can be transmitted between the percent of time the CPU is working a complete processing section from the CPU embedded into one physical chip a specialized logic chip that is dedicated to quickly the computer s temporary storage space or short memory that the computer s operating system uses Hyperthreading technology that permits quicker processing of information by enabling a new set of instructions to start executing before the previous set has finished Kernel memory Latency process that occurs after the read write head of the hard drive locates the correct track and then waits for the correct sector to spin to the read write head Memory module memory card a small circuit board that holds a series of random access memory RAM chips Moore s Law a prediction named after Gordon Moore the cofounder of Intel states that the number of transistors on the CPU chip will double every two years Nonvolatile storage Permanent storage as in Read only memory Optical media Portable storage devices such as CDs DVDs or Blu ray discs Physical memory The amount of random access memory RAM that is installed in a computer Platter a thin round metallic storage plate stacked onto the hard drive spindle Random access memory RAM term memory It is located in a set of chips on the system unit s motherboard and its capacity is measured in megabytes or gigabytes Read write head The mechanism that retrieves and records the magnetic data to and from a data disk They move from the outer edge of the spinning platters to the center Serial Advanced Technology Attachment SATA much thinner cables and can transfer data more quickly than IDE drives Sector a section of a hard drive platter wedge shaped from the center of the platter to the edge Seek time the time it takes for the hard drives read write heads to move over the surface of the disk between tracks to the correct track Solid state drive SSD use but can reach data in only tenth of the time a flash drive requires Sound card an expansion card that attaches to the motherboard inside the system unit and that enables the computer to produce sounds by providing a connection for the speakers and microphone Surround sound a type of audio processing that makes the listener experience sounds as if it were coming from all directions System evaluation the process of looking at the computer s subsystems what they do and how they perform to determine whether the computer system has the right hardware components to do what the user ultimately wants it to do Track a concentric circle that serves as a storage area on a hard drive platter Video card video adapter an expansion card that is installed inside a system unit to translate binary data into the images viewed on the monitor Video memory RAM that is included as part of a video card Volatile storage temporary storage such as in RAM When the power is off the data in volatile storage is cleared out a drive that uses the same kind of memory that flash drives a type of hard drive that uses Chapter 7 system software that controls hardware devices a network consisting of client and server computers in the accommodation of current devices being able to use a wireless standard established in 1997 by the Institute of a network that uses the Ethernet protocol as the means or a cable that transmits data at close to the speed of light along the most commonly used Ethernet standard deployed in devices a computer that requires information from a server in a client server a software program or hardware device designed to prevent unauthorized 802 11 standard WiFi Electrical and Electronics Engineers Backward Compatibility previously issued software standards in addition to the current standards Cat 6 Cable a UTP cable type that provides more than 1 GB of throughput Client network such as your computer when you are connected to the Internet Client Server Network which the clients make requests of the server and the server returns the response Coaxial Cable a single copper wire surrounded by layers of plastic insulation and sheathing used mainly in cable television and cable Internet service Data Transfer Rate bandwidth the maximum speed at which data can be transmitted between 2 nodes on a network usually measured in megabits per
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