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Hardware Basics 5013

vocab for chapter 2

Equitable Access "robust and and reliable accss to current and emerging technologies and digital resources with connectivity for all students, teachers, staff, and school leaders"
Control Unit located within the CPU it recieves instructions and then passes these on to the rest of the computer system.
RAM This is the temporary memory required to run a computer. When the computer is turned off information held in RAM is lost. This determines how fast a computer can work.
ROM The permanent internal memory that stores the information installed or programmed by a manufacturer.
OCR Optical Character Recognition- This software used by scanners converts text so it can be used within a computer
CPU Central Processing Unit- housed inside the computer body as computer chips. It is comprised of thecontrol unit, ALU, and the memory unit. It is what processes all of the information, and often called a processor.
ALU Stands for the arithmetic logic unit. It is the part of the CPU that preforms any needed mathematical equations.
ASCII American Standard Code for Information Intherchange- it is a binary coding system using 0s and 1s to represent information in the computer.
bit This is the smallest unit of binary information.
byte Made up of 8 bits; it represents one letter or number.
processor speed conveys how fast information can be movef in and out of memory. It is measured in megahertz or gigahertz
USB Drive Small external storage devices that can be plugged into a usb port.
Lumens This is what the brightness of a project or is measured in
CD-ROM Compact Disc-Read Only Memory no information can be added to this device.
CD-R Compact Disc- Recordable This disc can be recorded on once, but can not b rerecorded, used mostly for storage.
CD-RW Compact Disc-Rewritable This disc can be recorded on and edited later. This disc is not readable by all computers.
Created by: 1424812954