The reference to the root of the tree should be set to null
<h3>Can the root of a binary tree be null?</h3>
- Only the subtrees are nulled out, the root always remains and will never be set to null.
<h3>What is null root?</h3>
- null-, root. -null- comes from Latin, where it has the meaning "none; not one.
- '' This meaning is found in such words as: annul, null, nullify.
To learn more about it, refer
to brainly.com/question/24448358
#SPJ4
The feature to restrict values allowed in a cell and need to create a drop-down list of values from which users can choose in the above scenario is data validation.
<h3>What is data validation?</h3>
Data validation is a term that connote the act of monitoring the truthfulness and quality of source data before one can make use of it, importing or even process data with it.
Note that The feature to restrict values allowed in a cell and need to create a drop-down list of values from which users can choose in the above scenario is data validation as it ensure that users can make their own choice.
Learn more about data validation from
brainly.com/question/27138101
#SPJ1
He should use PowerPoint and the design should be feathered
Answer:
The period of third generation was from 1965-1971. The computers of third generation used Integrated Circuits (ICs) in place of transistors. A single IC has many transistors, resistors, and capacitors along with the associated circuitry.
The IC was invented by Jack Kilby. This development made computers smaller in size, reliable, and efficient. In this generation remote processing, time-sharing, multiprogramming operating system were used. High-level languages (FORTRAN-II TO IV, COBOL, PASCAL PL/1, BASIC, ALGOL-68 etc.) were used during this generation.
Third Generation
The main features of third generation are −
IC used
More reliable in comparison to previous two generations
Smaller size
Generated less heat
Faster
Lesser maintenance
Costly
AC required
Consumed lesser electricity
Supported high-level language
Some computers of this generation were −
IBM-360 series
Honeywell-6000 series
PDP (Personal Data Processor)
IBM-370/168
TDC-316
The technology used in space exploration are simple observation technologies such as cameras, recorders and other machines to study a certain place in the space. Also space exploration needs survival technology for the spacemen allowing them to survive for many many years.
