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lesson1 vocabulary
PIT
20
Other
9th Grade
09/28/2010

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Term
arithmetric logic unit (ALU)
Definition
in computing on arithmetric logic unit is a digital circuit that performs arithmetric and logical operations.
Term
circuit board
Definition
a printed circuit that can be inserted into expansion slots in a computer to increase the computers capabilities.
Term
control unit
Definition
a control unit in general is a central part of whatsoever machinery that controls its operations,provided that a piece of machinery is complex and organized enough to contain any such unit.
Term
Hard disk
Definition
Is a non-volatile storage device that store digitally encoded data on rapidly rotating,rigid (i.e hard)patters with magnetic surface.
Term
Information
Definition
Concept has many meanings, from everyday usage to techcnal settings. The concept of information is closely related to notions of constraint, communication,control,data,instruction,knowledge.
Term
Mobile device
Definition
A mobile device is a pocket sized computing device,typically having a display screen with touch input or a miniture keyboard...
Term
Notebook computer
Definition
A laptop is a personal computer designed for mobile use and small and light enough to sit on a person's lap while in use...
Term
Read-Only Memory
Definition
Read-Only Memory- is a class of storage media used in computers and other electronic device....
Term
Software
Definition
written programs or procedures or rules and associated documentation pertaining to operations of a computer system and that are stared in read/write memory...
Term
Tablet(PC)
Definition
Is a pharmacuetical usage form.It comprise mixture of active substance and excipitnts....
Term
central processing unit (CPU)
Definition
the central processing unit controls the operation of a computer. Units within the CPU perform arithmetic and logical operations and decode and execute instructions.
Term
computer
Definition
an electronic device that has the ability to store, retrieve and process data, and can be programmed with instructions that it remembers.
Term
data
Definition
data can be input in a computer and process in various ways
Term
hardware
Definition
is the physical part of a computer system; the machinery and equipment.
Term
memory
Definition
the working space used by the computer to hold the program that is currently running, along with the data it needs, and to run the program and process data.
Term
motherboard
Definition
the main circuit board inside the computer that everything in the computer plugs into and contains the central processing unit.
Term
random access memory (RAM)
Definition
is the memory used for storing data temporarily while working on it, and running application programs.
Term
server
Definition
a system that provides network service such as disk storage and file transfer, or a program that provides such a service.
Term
supercomputer
Definition
a very fast and powerful computer, outperforming most mainframes, and used for intensive caculation.
Term
USB flash drive
Definition
A flash drive consists of a printed circuit board (flash memory) inside small case integrated with a USB interface. Some come with fingerprint authentication. The most common case size is 70mm (length).
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