E. Answer the following questions.
1. Define the term OS. .Name some common OS used for handheld devices.
2. What are the different functions of OS?
3. Briefly write about different types of OS.
4. Write the advantages and disadvantages of CUI.
5. Write the advantages and disadvantages of GUI.
Answers
1. An operating system (OS) is system software that manages computer hardware, software resources, and provides common services for computer programs.
Android OS, Bada, BlackBerry OS, iPhone OS / iOS, MeeGo OS, Palm OS, Symbian OS...
2. An operating system has three main functions:
(1) manage the computer's resources, such as the central processing unit, memory, disk drives, and printers,
(2) establish a user interface, and
(3) execute and provide services for applications software.
3. Batch Operating System
Some computer processes are very lengthy and time-consuming. To speed the same process, a job with a similar type of needs are batched together and run as a group. The user of a batch operating system never directly interacts with the computer. In this type of OS, every user prepares his or her job on an offline device like a punch card and submit it to the computer operator.
Multi-Tasking/Time-sharing Operating systems
Time-sharing operating system enables people located at a different terminal(shell) to use a single computer system at the same time. The processor time (CPU) which is shared among multiple users is termed as time sharing.
Real time OS
A real time operating system time interval to process and respond to inputs is very small. Examples: Military Software Systems, Space Software Systems are the Real time OS example.
Distributed Operating System
Distributed systems use many processors located in different machines to provide very fast computation to its users.
Network Operating System
Network Operating System runs on a server. It provides the capability to serve to manage data, user, groups, security, application, and other networking functions.
Mobile OS
Mobile operating systems are those OS which is especially that are designed to power smartphones, tablets, and wearables devices. Some most famous mobile operating systems are Android and iOS, but others include BlackBerry, Web, and watchOS.
4. Advantages of CUI
CUI (Character User Interface)CUI does not offer the same ease and ability to work with multiple programs at once on one screen.
Disadvantages of CUI
CUI appeared at one of the initial stages of computer technology development. The disadvantage of this type of interface is the limited visual media, due to the restricted number of characters included in the font provided by the equipment
5. Advantages of GUI
A major advantage of GUIs is that they make computer operation more intuitive, and thus easier to learn and use.
Disadvantages of GUI
They need significantly more memory (RAM) to run than other interface types.
LIke , rate and follow
Sorry that’s all I know :(