Answer:
Without it information flow is impossible
Explanation:
The word 'pivotal' also means crucial or vital, and so we need to consider what an operating system actually does.
Remember, merely having all the hardware of a computer would not allow you to run (install and use) programs. It is by means of an operating system that teaching programs can be installed, and it is also by means of an operating system learning can take place.
For example, a student can decode (learn) instructions/lessons from his teacher via a software program; and the software program needs an operating system to open (run) the program.
Answer:
the depth of the shaft,
the carrying load of the skip and the mass of the counterweight,
the approximate size of the winding drum,
the approximate height of the headgear and the sheave wheel
Answer:
Java.
Explanation:
public class Card
{
String Suit;
int value;
public Card(int value, String Suit) {
self.value = value;
// Check Suits value
if ((Suit == "hearts") || (Suit == "spades") || (Suit == "clubs") || (Suit == "diamonds"))
self.Suit = Suit;
else {
Suit = "none";
throw new IllegalArgumentException("no card of this type exists.");
}
}
public String getSuit() {
return Suit;
}
public int getValue() {
return value;
}
public void print() {
System.out.println("%d of %s", value, Suit);
}
}
public class Deck {
}
Answer:
columns, rows
Explanation:
In Computer programming, a atabase schema refers to the logical design of the database while the database instance refers to a snapshot of the data found in a database at a given instant in time.
Basically, in database management, the term "schema" is used to denote a representation of data while the term "instance" is used to denote an instance of time.
A database schema is a structure which is typically used to represent the logical design of the database and as such represents how data are stored or organized and the relationships existing in a database management system. There are two (2) main categories of a database schema; physical database schema and logical database schema.
Also, a database instance is a snapshot of the data in the database at a given instant in time and as such represents an operational database by following the conditions, validation and constraints set for a database management system.
These data can be stored or organized in a database management system through the use of multiple-column record formats.
In a multiple-column record of a data file, columns represent different variables and rows represent different cases (respondents) such as experimental data, independent observations etc.
