IO modules and cloud computing

What is this a diagram of?

An I/O module

What does an IO module do?

manages data exchange between peripheral devices and the computer

Give an example of a peripheral device

Mice, keyboards…

What is the control flow in an IO module?

commands from the CPU to IO devices

What is the data flow in an IO module?

data transfer between peripheral devices and memory

What is this a diagram of?

IO control flow

What is this highlighted box?

data register

What is this highlighted box?

Status/control register

What is this highlighted box?

IO control logic

What is this highlighted box?

External device interface logic

What is this highlighted box?

Internal device interface logic

What is this highlighted box?

data bus buffer

What is this highlighted box?

Read/write control logic block

What is this highlighted box?

internal bus

What is this highlighted box?

Control register

What is this highlighted box?

Status register

What is this highlighted box?

IO device

What are these highlighted boxes?

ports

What are data registers in an IO module?

temporarily storage for data being transferred

What are status/control registers in an IO module?

holds status info and command controls

What are data lines in an IO module?

pathways for data transfer

What are address lines in an IO module?

identifies the source and destination of data

What are control lines in an IO module?

manages the operation of IO functions

In programmed IO operations, the ____ is actively involved in the data transfer process

CPU

Programmed IO operations use a _________ to check device status

polling mechanism

Programmed IO operations are suitable for _____________

simple, low speed IO operations

In Interrupt driven IO operations, _____ interrupt the CPU when ready for data transfer

devices

Which is more efficient: Interrupt driven IO operations or Programmed IO operations?

Interrupt driven IO operations

Interrupt driven IO operations reduce _______

CPU idle time

DMA stands for:

direct memory access

In DMA operations, a _______ manages data transfer between memory and peripherals

DMA controller

Because a DMA controller is used in DMA operations, it leaves the _____ free for other tasks

CPU

DMA operations are ideal for _________

high speed data transfer

USB stands for:

Universal serial bus

What does plug and play mean?

You can plug in a device and use it right away with no set up

What is cloud computing?

delivery of services over the internet

What does IAAS mean?

Infrastructure as a service

What does PAAS mean?

Platform as a service

What does SAAS mean?

Software as a service

What does infrastructure as a service entail?

virtualized computing resources like virtual machines, storage, networking capabilities.

In IAAS, providers manage the ______

physical hardware

IAAS enables businesses to scale and innovate without _______

the burden of managing physical hardware

What does platform as a service entail?

provides a platform and environment to enable software and service development over the internet development

PAAS delivers __________

infrastructure and middleware

in PAAS, the provider manages the underlying ____________

infrastructure, OS, and updates

PAAS provides a _______

platform for developing and deploying applications

What does software as a service entail?

Software applications are delivered over the internet

In SAAS, users _____ instead of purchasing and installing

access applications via a web browser

in SAAS, providers handle __________

maintenance of the application

What does storage as a service entail?

provides storage resources over the internet

In Storage as a service, users can ______

manage and access data in an organization or individually without maintaining physical storage infrastructure.

STAAS provides______

scalable and flexible storage solutions over the internet

What does database as a service entail?

provides users with access to a database without the need for setting up a physical database

in DBAAS, the provider____

manages all admin tasks and maintenance.

what does DBAAS provide?

provides a fully managed, scalable and secure database

What is vendor lock in?`

dependence on a provider

What is outsourcing?

contracting business processes to third parties

cloud computing uses _______ services

internet based

What is a private cloud?

cloud services dedicated to a single organization

What is a public cloud?

cloud services shared across organizations

________ allows you to run code without provisioning or managing servers.

AWS lambda

_______ is an PAAS from AWS that simplifies development, managing and scaling of web applications

Elastic beanstalk

______ is a service by AWS that enables creation, maintenance and publication of APIs

API gateway

________ is a PAAS by google that lets developers build and deploy web apps and APIs

Google app engine

______ a serverless computer service by google that lets you run code without provisioning or managing servers

google cloud function

____ is a platform by google for building mobile and web apps

Firebase