Answer:
An algorithm enables the programmer to perform a task or mission. So the answer is A. A loop is repeating while a website requires loops and algorithms
Answer:
solution attached.
Explanation:
Also, the tetha time complexity of T_upper would be 
Answer:
Provide various open source services for users of the operating system.
Explanation:
Operating systems are applications that manages the computer hardware system. It creates a suitable platform for other user and system applications to run with access to the hardware features through a kernel.
The open source applications and services are user software applications that are free for users to customise and share with other users.
<span>A computer’s start-up instructions are stored in a type of memory called Flash. Flash memory can be written to and read from, but its contents are not erased after the computer powers down. This Flash memory is more commonly referred to as the BIOS (Basic Input Output System).</span>
