Answer:(1) To manage the computer's resources, which includes central processing unit, memory, disk drives, and printers, (2) To establish a user interface
(3)To execute and provide services for applications software.
The old mainframe computers have
(1) low memory sizes
(2) slower connectivity speed
(3) Larger sizer
(4) low sophistication.
Explanation: Operating system is a system software that manages the computer resources,helps to establish user interface and it helps to provide services for application softwares.
Operating system software includes WINDOWS X,WINDOWS 7,WINDOWS 8,LINUX,etc.
Mainframe computers are computers used by large multinational companies for processing bulk data. Old mainframe computers were produced by IBM(INTERNATIONAL BUSINESS MACHINE) in the year 1952 they are classed two scientific and commercial mainframe computers with different information although they had some incompatibilities. Old mainframe computers are large in size with low processing speed, sophistication and storage compared to present day system.
Answer:
Telephone conversation
Explanation:
Any real time conversations are synchronous.
Answer:
lean media
Explanation:
Dr. Thomas uses email as a medium of lean media to convey messages.
Lean media may be defined as the source of conveying messages that are short or of lean capacity. It is meant for instant messages and message and information that is not considered to be of out most importance. Whereas a rich media is a video chat or face to face communication.
Dr. Thomas send emails to her patients to follow up with them and also encourages her patients to call her for appointments or any questions. She uses email as a source of lean media for this communication.
Answer:
Virus is a type of malware which is used in this case.
Explanation:
X = int(input(“Enter a number”))
table = x * 9
print table
#For the number inputed it will output that number multiplied by 9
