The Entity-Relationship Model
After you have a data model that meets the organizations business requirements, the easiest way to transform
that model into a relational database is to first transform that model into an entity-relationship model. More ...
Using the HSL Color Specification
The CSS hsla method gives artists familiar with the HSL (hue, saturation, lightness, alpha) color specification a way to design color with CSS. More ...
How to Get More Reviews for Your Kindle eBook
One of the most important thing contributing to sales of a Kindle eBook is reviews. If an eBook
has a large number of reviews, even if some of the reviews are bad, people assume the eBook is worth reading. More ...
Computer Video Display
If you view a computer as an input-processing-output machine, you can use a keyboard
or removable storage device as the input, a program as the processing, but what can you
use to retrieve the output? One way to acquire the output, be it text or graphics, is with a video display. More ...
Microprocessor Counter, Clock, Timer Circuits
All the circuitry in the microprocessor, in fact all the circuitry on the motherboard require
a clock signal for operation. The clock signal is the heartbeat of the system. Without a
clock signal, the microprocessor and the computer are dead. More ...
Binary Floating-Point Numbers
Floating-point numbers allow you to use the very large, and very small, numbers commonly found
in scientific calculations. A binary floating-point number consists of three parts, the sign bit, the mantissa and the exponent. More ...
Virtual Memory and Memory Paging
In the early days of computers, memory chips were small capacity, scarce, and expensive. Because
of this a memory management scheme called paging was invented. More ...
Change Raspberry Pi Default Configuration
If you are a US user of the Raspberry Pi, you will discover that when you type, the characters displayed do not match our keyboard.
When you type [shift][#] instead you get the British pound symbol. This is because Raspbian (and NOOBS) defaults to UK keyboard settings. More ...
Java Script Events
An event occurs when the user does something, the browser does something, or when certain conditions exist.
When an event occurs, an event object is created and its properties are filled with information about the event. More ...
number to a binary number is shown below. More ...
How to Resolve Windows 7 BOOTMGR Missing Error
BOOTMGR is missing error occurs when Windows is corrupted Windows or it is trying to boot from
a wrongly configured or improperly connected hard drive. More ...
This article shows you how to restrict the user's keyboard input to a textbox to only the digits 0 and 1.
You should to be able to modify the code for your own purposes. More ...
How to Compose Music
You should decide which style of music, or genre, you want to compose. Some
of the different styles are blues, jazz, country, pop, rock, and classical. Each
different style of music tends to use common rhythms and beats, and each
tends to use specific instruments. More ...