Exam1 Study Guide Part 2

Exam1 Study Guide Part 2 - Megapixel-Every camera is...

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Part 2 CPU- electronic component on a computer’s motherboard that interprets and carries out the basic instructions that operate the computer. Measured in clock speed. Today’s CPU are measured in gigahyrtz. Front Side Bus - Bus that is part of the motherboard and connects the processor to main memory L2 Cache - cache on the processor PS/2 vs. USB - 127 devices on single USB card PCI vs. PCIe- PCI – 133 MB/ PCIe- 500 MB/s RAM/Memory- RAM- Type of memory that can be read from and written to by the processor and other devices. Memory- Electronic components in a computer that store instructions waiting to be executed by the processor, the data needed by those instructions and the results of processing data Optical Drives - Type of storage medium that consists of flat, round, portable disc made of metal, plastic, and lacquer that is written on and read by a laser. Hard Drive- Type of storage device that contains one or more inflexible, circular platters that use magnetic particles to store data, instructions, and information
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Unformatted text preview: Megapixel-Every camera is measured in megapixels. 3 MP= 5 X 7. 8 MP= 8 X 10 RFID-Radio Frequency Identification-can track people and things RFID Components-RFID Tags, RFID Readers, tracking bee hives system Passive vs. Active Tags- Passive- usually less than 3 meters/ no battery power. Active- Battery Powered. Range is greater than 100 meters Types of RFID Chips-Lossy Compression- take all frequencies humans can’t hear and throw them away Conversion of WAV file length to Bytes-Minutes to seconds. Multiply by 441100. Multiply by 2. Multiply by 2. Bits and Bytes-Bit- the smallest unit of data a computer can process. Byte- Eight bytes that are grouped together as a unit. A byte provides enough combinations to represent 256 individual characters Decimal vs. Binary ASCII vs. UNICODE-ASCII- way of representing in binary. Got replaced by UNICODE because it is universal character set....
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This note was uploaded on 01/11/2012 for the course IST 195 taught by Professor Staff during the Fall '08 term at Syracuse.

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Exam1 Study Guide Part 2 - Megapixel-Every camera is...

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