Week 5 Lab Key info- business process and computer basics

Central Processing Unit (CPU)

brain of computer, allows hardware to communicate with software, transforms actions into binary - Intel or M chip 

CPU single cycle

1. Fetch instruction- pull from it memory

2. Decode instruction (find out what it is supposed to do)

3. Execute the instruction

4. Repeat 

Motherboard

the nervous system, has everything talk to each other, Basic input out system that goes on when boots up computer

Random Access Memory (RAM)

short-term memory, that hold the active data working on instead of processing in hard drive, helps control speed and latency.

Hard Drive 

computers long-term storage of files apps, operating system during shut-off. 

Servers

all the hard were components brough together. Can be phyiscal or virtual, have their own operating system of software applications. , designe depdns on purporse- process (more powerful CPUs) storage (larger RAM)

Client

hardware or software device that request access to service from server- typically request program or user

end user have input & output tools (screens and keyboards)

Cloud Computing 

delivery of hosted services over the internet

allows for flexibility, scalability, and cost saving

Types of Cloud Services (3)

1. Infrastructure-as-a service (Iass)

2. Platform-as-a service

3. Software-as-a service

Infrastructure-as-a-service (IaaS)

most basic, rent IT infrastructure (everything) on pay as you go basis

Platform-as-a-service (PaaS)

supply on-demand environment for developing, testing, delivering, and managing software applications- creating new apps with worrying about managing infrastructure

Software-as-a-service (SaaS)

subscriptions, cloud providers manage software application and users connect through internet web browser

Type of cloud deployments (3)

public, private, hybrid

Public Clouds

use for less secure customer facing, third party owned and controlled

Private Cloud

cloud computing used exclusively by a single business or org, can be on premise or hosted by third party. Good for high security and competitive advantage

Hybrid Clouds

bind public and private clouds together, allow data to move between them and gives greater flexibility and deployment options

Operating Systems

middle ware, manages all hard and software, coordinates everything to make sure software gets enough of hardware- CPU, memory and storage

Windows, MacOS, IoS

64 bit can process much more

Router

device that allows your specific devices to access the internet provided by the modem, also allow device to talk to each other without internet- traffic cop

Modem

connect network to the broader internet, transforms digital info from computer into analog signals thar can translate over wires then translate incoming back

Unsecured (open) network

can be connected to within range and without any type of security feature like a password or login

Secured Network

requires a user to agree to legal terms, register an account, or type in a password before connecting to the network