Ict world news : Scholarly articles for Questionnaires of Information Technology . Identify and briefly discuss the fundamental characteristic that distinguishes

RAM from ROM memory.

What is RAM?

(RAM) is a computer’s short-term memory and its complete aberration is Random

Access Memory. Which it uses to manage all active tasks and apps. Like files, games, or streams

Would work without RAM. There are two types of RAM:

• Static RAM
• Dynamic RAM

What is ROM?

(ROM) is a type of storage segment that permanently stores data on personal computers (PCs) and other electronic devices. Its complete aberration is Read-only memory. Which is very essential for boot-setup; it performs major input/output tasks and holds programs or software instructions. There are two types of RAM:

• Mask ROM
• Programmable ROM
• Erasable Programmable ROM
• Electrically Erasable Programmable ROM

The following table Distinguishes ROM and RAM:

(lakshmiprabha, 2020)

When speaking of computers, what is meant by scalability?

Computer Scalability is the measure of a computer system’s ability to increase or decrease in performance and cost in response to changes in application and system processing demands. Computer system’s Enterprises that are growing rapidly should pay special attention to scalability when evaluating hardware and software. When the number of users is increased, would include how well a hardware system performs is good, how well a database withstands growing numbers of queries, or how well an operating system performs on different types of hardware. (Gartner, 2022)

What is a virtual machine?

A  Virtual Machine (VM) is a compute resource that uses software functions as a virtual computer system with its own CPU, memory, network interface, and storage, created on a physical hardware system (located off- or on-premises).

There is no difference between Virtual Machine (VM) and other typical physical computer like a laptop, smart phone, or server. VM has a memory, disks to store your files, CPU, and can connect to the internet if needed. While the physical computer parts that (called hardware) are physical and tangible, Virtual Machines are often thought of as virtual computers or software-defined computers within physical servers, existing only as code.

More than one virtual “guest” machines run on a physical “host” machine.  Every Virtual Machine (VM) runs its own operating system and compute functions separately from the other VMs, even when they are all running on the same physical host machine. This means that, for example, a virtual WindowsOS/MacOS virtual machine can run on a physical PC. (Microsoft, 2022) (VMware, 2022) (RedHat, 2022)

What is an application programming interface (API)? What purpose does it serve?

API is the acronym for Application Programming Interface is a set of functions that allows applications to access data and interact with external software components, operating systems, or microservices. In other words, API is make simplify software development platform and innovation by enabling applications to exchange data and functionality easily and securely.

To explain this better, an API delivers a user response to a system and sends the system’s response back to a user. Each time you use cart option, click “add to cart;” an API tells the site you added a product to your cart; the website puts the product in your cart, and your cart is updated.

When we use an application on our electronics device like mobile phone, at first the application connects to the Internet and sends data to a server. The server then get back that data, interprets it, performs the necessary actions and sends it back to our mobile phone. The application then explain that data and presents you with the information you wanted in a readable way. This is what an API is – all of this happens through via API.

Real life API explain. Now a days we are very match familiar with the process of searching flights online. We have a variety of options to choose from, including different cities, departure and return dates, and more. When you’re booking your flight on an airline website. You can choose a departure city and date, a return city and date, cabin class, as well as other variables. In order to book your desire flight, you interact with the airline’s website to access their database and see which seat are available, if any seats are available on those dates and what the costs might be. (Matt Wyatt, 2022) (mulesoft, 2022) (IBM, 2022)

What is a software as a service (SaaS)?

Software-as-a-Service (SaaS), is a complete cloud-based software distribution model.  Where a cloud provider is hosts applications and makes them available to end users over the internet. End users can access SaaS cloud apps with a web browser at any time. Users can purchase Software-as-a-Service (SaaS) from online at any time on a pay-as-you-go basis. If necessary, you can also subscribe monthly. In this model, an independent software developer may contract a third-party cloud provider to host the application. The cloud (SaaS) provider is fully responsible for hosting and maintaining the application throughout its life time. There are many large cloud providers. Microsoft is one of them. (Techopedia, 2021) (Wesley Chai, 2022)

References

Gartner. (2022). Gartner. Retrieved March 16, 2022, from Information Technology Gartner Web site: https://www.gartner.com/en/information-technology/glossary/scalability#:~:text=Scalability%20is%20the%20measure%20of,application%20and%20system%20processing%20demands.

IBM. (2022). Ibm.com/cloud/learn/api. Retrieved March 17, 2022, from https://www.ibm.com/: https://www.ibm.com/cloud/learn/api

lakshmiprabha. (2020, May 21). Geeksforgeeks . Retrieved March 16, 2022, from Geeksforgeeks Web Site: https://www.geeksforgeeks.org/difference-between-ram-and-rom/#:~:text=RAM%20is%20a%20volatile%20memory,when%20power%20is%20turned%20off.&text=Data%20stored%20in%20RAM%20can,ROM%20can%20only%20be%20read.

Matt Wyatt, S. T. (2022). BigCommerce Blog. Retrieved March 17, 2022, from www.bigcommerce.com: https://www.bigcommerce.com/blog/what-is-an-api/#conclusion

Microsoft. (2022). azure.microsoft. Retrieved March 17, 2022, from Microsoft Website: https://azure.microsoft.com/en-us/overview/what-is-a-virtual-machine/#overview

mulesoft. (2022). mulesoft.com/resources. Retrieved March 17, 2022, from https://www.mulesoft.com/: https://www.mulesoft.com/resources/api/what-is-an-api

RedHat. (2022). RedHat Website. Retrieved March 17, 2022, from Topics RedHat: https://www.redhat.com/en/topics/virtualization/what-is-a-virtual-machine

Techopedia. (2021, July 7). Techopedia Definition. Retrieved March 17, 2022, from www.techopedia.com: https://www.techopedia.com/definition/155/software-as-a-service-saas

VMware. (2022). VMware. Retrieved March 17, 2022, from www.vmware.com: https://www.vmware.com/topics/glossary/content/virtual-machine.html

Wesley Chai, T. W. (2022). techtarget.com/searchcloudcomputing. (S. E. Kathleen Casey, Editor) Retrieved March 17, 2022, from www.techtarget.com: https://www.techtarget.com/searchcloudcomputing/definition/Software-as-a-Service.

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