Answer:
A. Define boundaries
C. Deny access
D. Delay access
Explanation:
A barrier is a material or structure used to prevent or block access. Barriers can either be natural or structural and are used for many purposes usually for security reasons. The following are functions of barriers either natural or structural:
- Define areas of boundaries
- Delay or slow access. Example is the use of speed bumps to slow down vehicles.
- Provide access to entrances such as the use of gates
- Deny access to unauthorized personnel and allowing authorized personnel.
Answer:
The answer is "freeze panes command".
Explanation:
To see the row heading information into the columns "X, Y, and Z" we use the freeze panes command, which Pick's the cells from rows and on the right side of the columns, where you scroll.
This tool allows you to block columns/row headings so, the first column /or top row will stay on the screen and you also scroll down or over to see the rest of the panel.
Embedded system is considered any computer system that isn't a general-purpose pc or server.
<h3>What is an embedded system?</h3>
An embedded system is a combination of computer hardware and software designed for a specific function. Embedded systems may also function within a larger system. The systems can be programmable or have a fixed functionality.
<h3>What is embedded system and its types?</h3>
Embedded systems comprise hardware and software that work together to perform specific tasks. They rely on microprocessors, microcontrollers, memory, input/output communication interfaces, and a power supply to function
To learn more about embedded system, refer
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Answer:
1. Classes and objects
2. Inheritance
3. Polymorphism
4. Data hiding/ encapsulation
5. Interfaces.
Explanation:
Classes and objects depict the major component of the OOP (object oriented programming). It explains the object like a ball in a soccer game development.
The inheritance is like the subclass of the object. Data hiding is a stage in oop where the codes or data are hidden from another users.
In the polymorphism stage, the object is given the ability to change to a sub-object, while in the interface stage a function or method signature is defined without implementing it.