C
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When hard disk drives became standard in most PCs in the later 1980s, since the first two letters were already commonly used for these floppy drives, they logically labeled the third storage device “C”, even though it now tended to be the main storage medium for the computer, including usually containing the operating system.
Answer is given below
Explanation:
differences between a file-processing system and a database management system is given below
file-processing system
- File system is a software that manages and organizes the files in a storage medium within a computer.
- It doesn’t provide backup and recovery of data if it is lost.
- There is less data consistency in file system.
- File systems provide less security in comparison to DBMS.
- It is less complex as compared to DBMS.
database management system
- DBMS is a software for managing the database
- It provides backup and recovery of data even if it is lost.
- DBMS has more security mechanisms as compared to file system
- It has more complexity in handling as compared to file system.
- There is more data consistency because of the process of normalization.
Images help tell a story where describing with words is either too lengthy, or practically impossible. For instance, you could have a map of a location and various arrows and other markings to describe movements of troops during a battle of the civil war. This is one example of many that you could have as an image on a website. Describing the troop movements with words only may be really difficult to do. Plus many people are visually oriented learners, so they benefit with images every now and then. Of course, it's best not to overdo things and overload the site with too many images. A nice balance is needed.
Answer:
In C++:
#include <iostream>
using namespace std;
int main(){
string fname,lname; int num;
cout<<"Firstname: "; cin>>fname;
cout<<"Lastname: "; cin>>lname;
cout<<"4 digits: "; cin>>num;
string login = lname;
if(lname.length()>=5){
login = lname.substr(0, 5); }
login+=fname.substr(0,1)+to_string(num%100);
cout<<login;
return 0;
}
Explanation:
See attachment for explanation where I used comments to explain each line
Answer: Add more cells in series.
Explanation:
Adding more cells in series will add voltage which will increase the power.
