1 1 2 History and evolution of Cloud computing

Summary

Cloud computing evolved from mainframe time-sharing in the 1950s to virtual machines in the 1970s, enabling resource pooling and efficiency. With the rise of the internet, virtualization techniques allowed for cost-effective shared hosting. Hypervisors facilitated multiple virtual systems on one physical node, leading to the pay-as-you-go model. This utility computing approach, allowing scalable resources on-demand, revolutionized computing and paved the way for modern cloud services.

Takeaways

• 🌟 **Cloud Computing Evolution**: The concept of cloud computing has evolved from mainframes in the 1950s to modern cloud services.
• 🕒 **Time-Sharing Origins**: Early cloud computing involved time-sharing mainframes to efficiently use high-volume processing power.
• 🖥️ **Virtual Machine Innovation**: The 1970s saw the advent of VMs, allowing multiple virtual systems on a single physical node.
• 📡 **Virtualization Advancement**: Virtualization enabled distinct compute environments on shared physical hardware, driving significant technological progress.
• 💻 **Cost-Efficiency**: The high cost of physical hardware in the past led to the adoption of virtualization for cost efficiency.
• 🌐 **Internet Accessibility**: The increasing accessibility of the internet facilitated the shift towards virtualized hosting environments.
• 🛠️ **Hypervisors Role**: Hypervisors play a crucial role in creating and managing virtual systems on a single physical node.
• 🔒 **Isolation and Security**: Hypervisors ensure that virtual machines are isolated, preventing issues in one from affecting others.
• 💼 **Utility Computing Model**: The pay-as-you-go model allows users to pay for cloud resources on a per-use basis, similar to electricity.
• 📈 **Scalability**: Cloud computing allows businesses to scale up or down based on demand, optimizing resource usage and costs.
• 🚀 **Modern Cloud Computing**: The evolution of cloud computing has led to its widespread adoption and significant impact on technology and business.

Q & A

What was the initial concept of cloud computing?

The initial concept of cloud computing dates back to the 1950s with the advent of large-scale mainframes and the practice of time-sharing or resource pooling to efficiently use the computing power of these mainframes.

What was the role of dumb terminals in the early days of cloud computing?

Dumb terminals facilitated access to mainframes, allowing multiple users to access the same data storage layer and CPU power from any terminal.

How did the release of the Virtual Machine (VM) operating system in the 1970s impact cloud computing?

The VM operating system allowed for multiple virtual systems or virtual machines on a single physical node, enabling distinct compute environments to exist on the same hardware.

What is virtualization and why was it significant for cloud computing?

Virtualization is the technology that allows multiple operating systems to run on a single physical server by creating virtual machines, which was a catalyst for the evolution of cloud computing.

What was the role of hypervisors in the development of cloud computing?

Hypervisors enabled multiple operating systems to run alongside each other on the same physical computing resources, logically separating them and preventing interference.

How did the cost of physical hardware influence the shift towards cloud computing?

The high cost of physical hardware led to the virtualization of servers into shared hosting environments, which then evolved into cloud computing to make hardware costs more viable.

What is the significance of the pay-as-you-go model in cloud computing?

The pay-as-you-go model allowed users to pay for computing resources on a per-use basis, which was a key driver behind the adoption of cloud computing.

How did the pay-per-use model benefit companies transitioning to cloud computing?

The pay-per-use model allowed companies to switch from a capital expenditure (CapEx) model to an operational expenditure (OpEx) model, making it more cash-flow friendly.

What is the advantage of cloud computing in terms of scaling workloads?

Cloud computing allows companies to scale their workloads during usage peaks and scale down when usage subsides, providing flexibility and cost efficiency.

What is the impact of cloud computing on companies with little or no hardware?

Cloud computing enables companies with little or no hardware to access computing resources without making large capital investments in physical infrastructure.

What are some key considerations for cloud adoption that will be discussed in the next training?

The next training will cover key considerations for cloud adoption, which likely include cost analysis, security, compliance, and the selection of appropriate cloud services.