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SQL - Structure Query Language
SQL Injection:
Going into a website and changing the SQL behind the logging into something like WHERE (username = $username) or (1=1), making logging in (whatever the username or password) possible. However to do so the website script has to be unprotected or previously disabled to enable code editing.

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SQL Injection:
When SQL code is not protected for a login, SQL injection can be used. This is when the SQL code is changed to add a true argument to the statements to satisfy the query and allow access to the website.

Sound:
Microphone is used to convert analogue to electrical.
The signal is sampled - the height(amplitude) of the wave is measured at regular intervals.
The height of the wave is represented as a binary number.

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SQL Injection
An SQL injection is where a hacker would input code into the SQL script to manipulate the system allowing you access to restricted parts of a website e.g making it so they can always log into an account by adding when (1 = 1) for example as that is always true

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The injection of SQL code into a script to manipulate a system. This could include adding a variable which is always true, like 1=1, to gain access to a websites login.

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SQL injection- when a hacker exploits a websites unprotected SQL code and manipulates it so they can gain instant access to any account which will allow them to make changes and gain personal data.

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SQL injection-
This is when hackers manage to get into different websites and areas by getting hold of the SQL info. If they can get hold of the script behind a login system and change it to something that will always equal true then they will be able to bypass the system. For example 1=1

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~How is sound digitised:
-Microphone is used to convert analogue electrical frequency
-The signal is sampled
-The amplitude is represented by a binary number
Sampling- Amplitude of the wave is recorded at regular intervals

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-microphone to convert analogue to electrical(voltage)
-The signal is sampled, the height (amplitude) of the wave is recorded at regular intervals
- the height(amplitude) is then recorded as a binary number

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How sound is digitised -
- microphone to convert analogue to electrical pulses
- the signal is sampled - the height (amplitude) of the wave is recorded at regular intervals
- the height (amplitude) is represented by a binary number

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How is sound digitalized?
- Microphone converts analogue sound into electrical signal (changes in voltage)
- The signal is sampled - The amplitude is recorded at regular intervals
- The amplitude is represented by a binary number.

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Sound Digitisation-
to convert an analogue sound to digital first a sound will need to have been recorded into a microphone which converts the analogue into electrical. then the amplitude is sampled at regular intervals

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Microphone is used to convert analogue to electrical.
The signal is sampled - the height(amplitude) of the wave is measured at regular intervals.
The height of the wave is represented as a binary number.

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decimal = 0
INPUT binary
binary=str(binary)
number = 128
for i in binary:
if i == "1":
decimal=decimal + number
number = number /2

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decimal = 0
INPUT binary
binary = str(binary)
number = 128
for i in binary:
if i == "1":
decimal=decimal + number
number = number/2

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INPUT decimal
hex1= decimal mod 16
hex2 = decimal div 16
if hex1 > 9:

if hex2 > 9:

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INPUT hex
hex1 = hex DIV 16
hex2 = hex MOD 16
if hex1 > 9:
*then just a series of if loops*