Answer:
CPU.
Explanation:
A processor, also known as a Central Processing Unit, is a piece of hardware in a computer that performs basic operations and control when executing program code.
Processors are usually made as integrated circuits closed in a hermetic casing, often with gold-plated leads (used for resistance to oxidation) and in this form they are called microprocessors - in common speech the terms processor and microprocessor are used interchangeably. The heart of the processor is a single crystal of silicon, on which a series of semiconductor layers have been applied by means of photolithography, forming, depending on the application, a network of several thousand to several billion transistors. Its circuits are made of metals with good electrical conductivity, such as aluminum and copper.
Answer:
The number of presentation groups of 3 students that can be selected from a group of 5 students equals 10.
Explanation:
The number of different presenters equals the no of possible combinations of 3 students from a pool of 5 students.
Thus the number of possible combinations equals

The strings "or 1=1" and ""or ''=''" can be commonly used to trick an SQL WHERE clause into becoming true.
So if you specify <span>' or ''=' as a password, you can log in if the query string would be:
</span><span>select username,pass from users where username='you' and password='' or ''='<span>' limit 0,1;</span></span>