Answer:
An operating system (OS) is a software which is responsible for the management of computer hardware, software, and also provides common services for computer programs.
Operating System is pivotal in teaching and learning because:
1. It enables computer programs to run smoothly on various computer devices.
2. The Operating System gives teachers the opportunity to install learning apps on their devices for ease of teaching.
3. It enables students to download and install learning applications, download and upload assignments, etc.
4. The Operating System makes video conferencing for online tuition easy and smooth.
5. It makes computer users to interact with other applications and softwares within a device.
Operating systems are found on many computer devices e.g: mobile phones, video games, PCs, supercomputers, etc.
Answer:
c. Skewness
Explanation:
Cluster analysis involves analyzing a set of object by grouping the set of objects in such a way that objects in the one group or cluster are more similar to each other than to those in other groups or clusters. The characteristics of data that can strongly affect cluster analysis includes the size, sparseness, scale, etc.
Answer:
Direct data access reduces the speed of retrieving data from memory or storage. Retrieving data and storing it in a cache memory provides direct access to data in the storage.
Explanation:
Sequential memory access, as the name implies, goes through the memory length location in search of the specified data. Direct memory access, provides a memory location index for direct retrieval of data.
Examples of direct and sequential memory access are RAM and tapes respectively. Data in sequential memory access can be access directly by getting data in advance and storing them in cache memory for direct access by the processor.
The GPS device in an automobile uses the satellite communication channel. GPS stands for Global Positioning System. It is based on the satellite navigation system that consists of a number of satellites. This is being used to loacate places and determine exact location, time and speed.
Answer:
World Wide Web (WWW)
Explanation:
Popularly referred to as the Web is an information system that comprises of many interconnected web resources and documents. These documents and web resources possess a certain URL (Uniform Resources Locators) such as https://www.brainly.com/ which makes them accessible over the internet.
The <em>HTTP or Hypertext Transfer Protocol</em> is a channel for transferring the resources of the World wide web among users.
In 1989, the World Wide Web was invented by Tim Berners-Lee. He developed the first web browser in 1990.
The World Wide Web has played a fundamental role in the advancement of the information age as it is greatly used by different people around the world to communicate efficiently.
