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Computer Programming Essentials


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Hardware
All of the physical devices that collectively constitute the item we think of as a desktop or a laptop computer
Software
a collection of computer programs that tell the computer how to perform a particular task
CPU (central processing unit)
a component inside the base unit that processes data and controls the flow of data between the computer's other units
Main Memory/RAM
Primary storage area for programs/data in active use
Secondary Memory Devices
Provide long-term data storage
I/O (Input/Output) Devices
Facilitate user interaction
RAM
A form of Volatile Memory - A random-access device allows stored data to be accessed directly in any random order.
ROM
A class of storage medium used in computers and other electronic devices. Data stored in this cannot be modified, or can be modified only slowly or with difficulty, so it is mainly used to distri…
GUI
A core Windows component responsible for building graphics data to display or print.
Fetch-Decode-Execute
CPU Cycle
Applications/Programs
Software Categories:
Operating System
...The master controller on a computer; it manages the computers memory, processing, software and hardware
network
a cluster of computers. In a network, the server computer provides network services to the client computers on that network.
LAN
A computer network confined to a building or a group of adjacent buildings, as opposed to a wide area network
WAN
A legwork of computers and other communications devices that extends over a large area, possibly comprising national territories
File server
A specialized server that enables clients to share applications and data across the network.
Internet
A global network connecting millions of computers, making it possible to exchange information.
ARPA
Advanced Research Projects Agency
WWW
World Wide Web
Browser
A program that accesses and displays files and other data available on the Internet and other networks.
Links/Hyperlinks
Used to navigate b/n web pages
HTML
a special formattin language that programmers use to format documents for display on the Web. used for web page development
URL
A location or address identifying where documents can be found on the Internet; a Web address
http:
Protocol