hardware and software Flashcards
What is a bit
refers to the amount of 1’s and 0’s a computer has.
What is a byte
8 bits, unit of memory size
What is a cpu
Interprets, processes and executes instructions, most often from the hardware and software programs running on the device.
Central processing unit
Square shaped sometimes has dots on it.
What is a gpu
A graphics processing unit (GPU) is an electronic circuit that can perform mathematical calculations at high speed. Computing tasks like graphics rendering, machine learning (ML), and video editing require the application of similar mathematical operations on a large dataset.
2 Fans
What is ram
RAM is a temporary memory bank where your computer stores data it needs to retrieve quickly. RAM keeps data easily accessible so your processor can quickly find it without having to go into long-term storage to complete immediate processing tasks.
Random Access Memory
Looks like 2 long rectangles
What is a SSD
What do solid-state drives do? SSDs store data permanently inside an integrated circuit, typically using flash memory. The flash memory inside an SSD means data is written, transferred, and erased electronically and silently (Doesn’t actually move)
Solid state drive
Looks like a hard disk drive but is coverd in plastic
IPv4 vs IPv6
IPv4: Has 4 numbers between the dots 32 bits
IPv6: 8 numbers and letters bettwen the colons 128 bits
What are the 3 deployment model for cloud computing
Public cloud
Anyone in the public can use the cloud
Private cloud
Each company or group owns their own cloud
Hybrid cloud
A hybrid cloud is a mixed computing environment where applications are run using a combination of computing, storage, and services in different environments
What is a Hard Disk Drive
What Does a Hard Drive Do? A hard drive is the hardware component that stores all of your digital content. Your documents, pictures, music, videos, programs, application preferences, and operating system represent digital content stored on a hard drive. Hard drives can be external or internal.
Looks like square with a disc on it
What is the mother board
the software interface between the motherboard—the main circuit board that all of your components plug into—and the operating system and other applications. It allows the hardware to work with the software.
Has the cpu and others on it
Looks like a square or rectangle with many parts on it.
OS vs As
Operating system vs Application system
An operating system is system software that acts as an interface between the user and the hardware, whereas application software is a program that performs a specific task. It is impossible to install the application software on a computer system without an operating system.
Cloud computing vs On-premises
(Pros of cloud computing)
- Scalability – easy to scale up or down
- Cost effective – pay as you go system (pay what you use)
- Data Security – Cloud service providers secure your data as that’s their job. You can focus on your own work.
- Data Loss/recovery – cloud service providers replicate your data in multiple different locations, hence, it is easy to recover your data when lost/damaged due to number of factors
- Maintenance – Cloud service providers will take care of this.
- Accessibility – multiple users can access, at any where
Examples of popular cloud computing services
Google cloud, amazon web services, microsoft azure, IBM cloud
What are the 3 service model for cloud computing
IaaS – Infrastructure as a Service (OS/virtual machine)
PaaS – Platform as a Service
Developing managing applications (software)
SaaS – software as a service
How to convert IP to binary
For IPv4, for each number bettwen the dots turn that into a bianary number
For IPv6, Each sperate number and letter make a bianary number
