Bravo!!! Apple: A decade+1=11yrs with iPad 1 – 2010-2021

Bravo!!! Apple
A decade+1 and beyond with iPad 1 from 09 June 2010 to +09 June 2021
Secret :/ only read eBooks,

85% of time spent on Good Reader e-Reader App,…

The main 5 apps I have spent time with mostly:
Good Reader, Notes, Safari, Settings, Mail

I look forward to using it beyond that point in time…!

Receipt Purchased iPad-1 [16GB/1GB, Wi-Fi only]
at 09-June-2010 [click image to enlarge]:

Coming Soon! Video in YouTube at 09-June-2021 for this…!!!

Powerbank Powering Raspberry Pi

PART 2 – Power Bank Powering Raspberry Pi 4B


PART 1 – Power Bank Powering Raspberry Pi 3B+


Docker[Containers] vs Hypervisor[Virtual Machines]

Virtualization Technologies

Docker vs Hypervisor — Containers vs Virtual Machines

Wednesday, April 21, 2021

Category \ TechnologyDocker [Containers]Hypervisor [Virtual Machines]
Docker vs. Virtual Machines  
OS Support and ArchitectureNo Guest OS, Docker containers hosted on a single physical server with a host OS, which shares among them. Sharing the host OS between containers makes them light and increases the boot time. Docker containers are considered suitable to run multiple applications over a single OS kernel.Host OS and the Guest OS inside each VM. Guest OS can be any OS, like Linux or Windows, irrespective of host OS.
SecurityProviding root access to applications and running them with administrative premises is not recommended in the case of Docker containers because containers share the host kernel. The container technology has access to the kernel subsystems; as a result, a single infected application can hack the entire host system.Virtual machines are stand-alone with their kernel and security features. Applications needing more privileges and security run on virtual machines. 
PortabilityDocker containers packages are self-contained and can run applications in any environment, and since they do not need a guest OS, they can be easily ported across different platforms. Also, containers being lightweight [MBs] can be started and stopped in very less time compared to virtual machinesVMs are huge in size [GBs] because each include standalone OS. Not easy moved to a different platform without incurring compatibility issues.
Category \ TechnologyDocker [Containers]Hypervisor [Virtual Machines]
Docker vs. Virtual Machines  
PerformanceThe lightweight architecture of Docker containers is less resource-intensive than virtual machines. Most times one application per Container.VMs are more resource-intensive than Docker containers as the virtual machines need to load the entire OS to start. One OS in each VM, and usually many apps running in this OS.
Boot-TimeBoots in a few seconds.It takes a few minutes for VMs to boot.
Runs onDockers make use of the execution engine.VMs make use of the hypervisor.
Memory EfficiencyNo space is needed to virtualize, hence less memory.Requires entire OS to be loaded before starting the surface, so less efficient, more memory.
IsolationProne to adversities as no provisions for isolation systems.Interference possibility is minimum because of the efficient isolation mechanism.
DeploymentDeploying is easy as only a single image, containerized can be used across all platforms.Deployment is comparatively lengthy as separate instances are responsible for execution
UsageDocker has a complex usage mechanism consisting of both third party and docker managed tools.Tools are easy to use and simpler to work with.
Reuse of Resources and LibrariesDocker Containers can reuse Resources and Libraries from other Containers, taking less disk space.No reuse between VMs, Redundant copies exist, demanding more disk space.

Usually, Organizations are making use of the hybrid approach mostly as the choice between virtual machines and Docker containers depends upon the kind of workload offered.

Hypervisor-2 vs Docker

Hypervisor-1 vs Docker

Hypervisor-2 vs Hypervisor-1

Note: Hypervisor 1 [Servers mainly] vs Hypervisor 2 [Desktop mainly]

VM Hypervisor-2 vs Docker [Linux] vs Docker [VM Linux]

How to buy a Laptop or Mini-PC – A Quick Guide for Making the Right Choice

How to buy a Laptop or Mini-PC: A Quick Guide for Making the Right Choice

Useful Links
Moving to a Windows 10 PC –

Linux Laptops

Other Solutions for Mini-PCs

Notes Additional Models

* XEON Laptops [USA]

HP ZBook 17 G6 [DE]

** Apple MacBook Pro [DE]



Dell XPS 15 [DE]



*** ACEPC Mini PC Intel Core [USA]
i5 Mini PCs [UK]
Minisforum Mini PC – Best under 469.00
[DE] – [UK]

**** Minisforum Mini PC – Best under 259.00
[DE] – [UK]
ACEPC Mini PC – Best under 279.00

Μοναδικές παλιές φωτογραφίες, Μεταλλείο-Ορυχείο Λίμνης – Limni Mine – Polis, Unique Old Photographs

Μοναδικές παλιές φωτογραφίες, Μεταλλείο-Ορυχείο Λίμνης – Limni Mine – Polis, Unique Old Photographs


Contact Us if you interested buy



You can download the HTML5/CSS3 code here:


If you can not access NAS try this

If you can not access NAS try this:

go in Windows 10 search or Control Panel search and type “windows features”

choose “Turn Windows Features on or off”

Scroll list of features down and Ensure the checkboxes in green rectagle are all checked…

After a Restart [Windows will prompt to do so] your NAS should be accessed from Windows Explorer / File Explorer – in Network folder.


The best way to search for a Laptop or Desktop Computer

The best way to search for a Laptop or Desktop Computer medium to high priced for a purpose eg Software & Web Development or another item is just to create something for this in a related channel, like a YouTube video, blog article, Presentation, Excel Info/List, an Infographics, or other…

Create something RELEVANT
YouTube video mp4 or/and // eg “best laptops for software development in every budget”
Presentation Pptx or/and
Excel sheet/list xlsx or/and
Blog articles WordPress or/and
?…or another item, just create something in relation to this item, its category, or its usage…

This also the case in case you read a textbook/book especially in Programming
After finish reading a chapter or section, practice examples, do exercises in code by typing scripts and run code in IDE, Emulator, Browser,…etc
In addition, you will get embedded in your head, more what you have read by implementing an App with related programming as the chapter you read or write a guide how-to in programming related in your blog,…

I learn this by creating a YouTube video & Blog post & Presentation [all these] for my blog, about buying a laptop for specific needs[particularly Software Development] in different budgets, I learned a lot about the laptops market – even the laptop market local or online is huge… like many hidden secret models of laptops – were in the market but un-noticed… to me!!!

How to Convert a Physical Windows or Linux PC to a Virtual Machine

In YouTube Video below I use StarWind to Convert Physical to Virtual Machine, and VMware Workstation Pro 15 to run/play VM… file created…!!

I gave this cmd [boot from ISO windows 10 go command prompt] from the command prompt:

bcdboot C:\Windows

To Solve Successfully the Boot Problem – try it if your symptom is the same This command from



Donate   or 



lwdlse or lselwd




How to buy a Xeon convertible laptop for creative artists and content creators

How to buy a laptop for Software Development & Web Development

How to buy a laptop for Software Development & Web Development

Using Web APIs in your Code

Connect your App with Web APIs


new eBook at by LSE

support here:

more coming soon!


First Printing/Edition: 2020 July

ISBN 978-1-71673-318-5


COVER (C) 2020 July

Bravo!!! Apple: A decade with iPad 1 – 2010-2020

The Secret is — Used Only for eBook Reading

Bravo!!! Apple
A decade and beyond with iPad 1 from 09 June 2010 to +09 June 2020
Secret :/ only read ebooks,

85% of time spent on GoodReader eReader App,…

The main 5 apps I have spent time with mostly:
GoodReader, Notes, Safari, Settings, Mail

In 2-days it will be 10-years since I bought my first e-reader device an iPad 1.

I look forward to using it beyond that point in time…!

Thank You! Apple

Bravo & Thank you Apple Inc.

invoice purchased 10 – years ago !!!

A decade and beyond with Apple iPad 1 [2010-2020] – Secrets of longevity from Leonidas Savvides

My Links from my old Phone

Tech Links [ Computers Programming Russian ] – No Comment!

New Site

New Site

THE Group of Websites

BUY/SELL used/new Cyprus Wide





Coming Soon!

Two games/script examples [Snake, Tetris] in Pygame where initially enter Username and also have Top Ten Score/Username Rank…

YouTube Video below! embed below!

If you like to buy for 7.00$ email me – Included: The 2 Games + the 2 Games the same but with functionality added: Username enter & Top 10 Players keep in a text file, support for 3-months on the scripts – Drop me an email    // All payments PayPal guarantee



PC to VM converter

PC to VM converter


I recently converted a Windows 7 Home OS [old Dell Laptop] to vmdk Virtual Machine (VM)…

I will describe here the important points of the procedure. – This video discusses and demonstrates how to convert a physical machine into a virtual machine that will run on VMware Fusion, Workstation or Player.


Points to keep in mind

Set in resulting VM Network all 3 types of NAT, Host-Only, Bridge so as the VM has Connection to the internet.

RAM will be Ram of the converter PC… for me was 3.8GB so after finished Prior run VM round it to 4GB and after because the total RAM in my host PC is 32GB I increase it to 8GB exactly.

Follow the instructions in the tutorial & article above… VMWare converter server service must get started prior to starting the converting procedure. In my case, the software prompted me to START THIS SERVICE in Windows 7 Home.



















Your OLD PC CPU can Not run vmware… then try this…

If Your OLD PC CPU can Not run Vmware Player … ( cpu older than 2010 ) do Not give up try…

Then you can try install Virtual Box from Oracle…

Success worked

PC supports Visualization but CPU very old to install Vmware Player so installed Virtual Box …

For Questions email me

Get weather in CLI in Linux

First install w3m terminal browser with:

sudo apt install w3m


to get weather type






According to the desired location

Make sure Terminal window is expanded – large size mode, to see weather easily




Y/n   Y