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Hardware Basics 5013
vocab for chapter 2
| Question | Answer |
|---|---|
| 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. |