Hardware Basics0612
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Control Unit | Unit in CPU that retrieves the instructions and sends command signals to the rest of the computer system to tell them what to do.
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| Equitable Access | ISTE condition which states that "robust and reliable access to current and emerging technologies and digital resources, with connectivity for all students, teachers, staff, and school leaders" is necessary to effectively leverage technology for learning.
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| Memory Unit | Unit in CPU that allows storage of information, is internal to the computer, and is divided into two types of memory: RAM (random access memory) and ROM (read-only memory).
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| Cache | Provides a temporary storage area that provides quick access to information.
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| Central processing unit (CPU) | Located inside the computer body in the form of computer chips which processes information and is composed of three units that work together to process info.
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| Binary coding system (ASCII) | American Standard Code for Information Interchange) is a code made up of a series of zeros and ones.
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| Bit | Binary character that is the smallest unit of binary information.
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| Byte | Eight bits make up a byte which can represent on alphabetic or numeric character of information.
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| Arithmetic logic unit | The sector of the CPU that performs the mathematical calculations that are required in many data processing programs.
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| Input devices | Allow the input of data into the computer.
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| Peripheral devices | Necessary for a computer system to (1) input the information, (2) output the information into a form that is easily read by the user, or (3) store the information for later use.
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| Interactive whiteboard | When connected to a computer, the screen captures everything written or drawn on its surface which can later be transferred tot he computer and printed.
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| Megahertz | Processor speed is expressed in megahertz, which equals one million cycles per second.
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| Gigahertz | Processor speed is expressed in gigahertz, which equals one billion cycles per second.
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| Optical character recognition (OCR) | Software for converting text.
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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