Digital security - 1st problem

DESCRIPTION OF THE PROBLEM: 

Always use the same password for all my accounts and applications. I do not like to use complicated passwords because it is difficult to remember and too long. 

PROBLEMS THAT HAVING THE SAME PASSWORDS ON ALL SITES CAN CAUSE YOU:

Reusing the same password for multiple accounts makes you vulnerable to cyber attacks such as credential stuffing. This is when a cybercriminal uses verified login information – commonly found on the dark web after a data leak – then tries those credentials on a variety of other websites in an attempt to gain access. If someone reuses the same password for multiple accounts, a compromised credential from just one of them can result in severe impacts if your identity, banking or other Personally Identifiable Information (PII) is compromised.

LINKS:

Click here (information about whether it is safe to have the same passwords on all sites)

Click here (questions and answers from other people on this topic) 

TIPS TO AVOID THE PROBLEMS:

To avoid problems you can:

1.- Make the beginning of the password the same in all of them and then the end different in each one

2.- Have a little notebook that you can always have in a place that you know and write down all the passwords and what each one is for.

3.- Put passwords that are easy to remember but different.

4.- Put things that are always within your reach: birthdays...

5.- Use private applications to save passwords on your phone

Maybe now you think that it is not necessary but the day it becomes a serious problem because they see your own data you will realize it and from that day on you will change your cobpasswords without thinking twice.

Here you have a video with some explanations.

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Total price

 Motherboard - 160,34 € 

Case - 84 € 

CPU - 169 € 

Memory RAM - 89,30 € 

Storage device - 209,99 € 

Power supply - 35,99 € 

Graphic card - 199,99 €  

Monitor -  102,03 €

Total price: 1050.64 € 

 

How can you build your own computer?

Mine information of the components of a computer.

1. Motherboard

The motherboard, which is the main circuit board that secures all of the hardware, is always the first item on a list of all the parts of a computer.

2. Case 

A computer case is the outer shell of a computer. This case is what the motherboard, hard drives, cd drives, etc are mounted to make the complete computer.

3. Central Processing Unit (CPU)

The central processing unit (CPU) commonly referres to as the processor, is the 'brain' of your computer. The CPU solves all the sophisticated algorithms and programming your computer does while runnung programs or applications

4. Random Access Memory (RAM)

RAM stands for random acces memory, and it's one of the most fundamental elements of computing. RAM is a temporary memory bank where your computer stores data it needs to retrieve quickly.

5. Storage device

A storage device is a piece of hardware that is primarily used for storing data. Every desktop computer, laptop, tablet, and smartphone will have some kind of storage device within it. There are also standalone, external storage drives that you can use across devices.

6. Power supply

An electrical appliance known as a power supply provides electricity to an electrical load, such as a server, laptop, or other electronic devices. To power a load, a power supply's primary job is to transform electric current from a source into the appropriate voltage, current, and frequency.

7. Graphic card

A graphic card, also know as a video card or graphics processing unit (GPU), is a hardware component responsible for rendering and displaying images, videos, and animations on your computer monitor.

8. Monitor

A monitor is an electronic output device used to display information being entered and processed on a computer. The primary use of a monitor is to display images, text, video, and graphica information generated by the computer via a computer`s video card.

Monitor

 The computer monitor, also known as a screen, displays information from your computer such as images and text, which are generated thanks to a video card located inside the computer tower.

Types of monitors:

Cathode ray tube or CRT (Cathode Ray Tube)

Liquid crystal display or LCD (Liquid Crystal Display)

Plasma screen or PDP (Plasma Display Panel)

TFT LCD (Thin Film Transistor: thin film transistor)

LED display (Light Emitting Diode)

The main functionality of a monitor is to provide a visual interface between the computer and the user, being crucial for performing various tasks, from word processing to graphic design and web browsing.

Build your own computer - all the components

Graphic card

 The hardware element in charge of producing and displaying pictures, movies, and animations on your computer monitor is a graphics card, sometimes referred to as a video card or graphics processing unit (GPU).

Your device's graphics processing unit (GPU) aids in handling graphics-related tasks like effects, movies, and graphics. Find the GPU that best suits your needs by learning about the various kinds available. Because integrated GPUs are integrated into the motherboard of your computer, laptops can be tiny, light, and power-efficient.

The four main parts of a graphics card are the graphics processing unit (GPU), the printed circuit board (PCB), which houses all the components, the heat sink with fins and heat pipes, and the injection-molded shroud with fans.

Build your own computer - all the components

Power supply

 A power supply is an electrical device that offers electric power to an electrical load such as laptop computer, server, or other electronic devices. The main function of a power supply is to convert electric current from a source to the correct voltage, current, and frequency to power the load.

In order to power the motherboard, CPU, and other peripherals, the desktop computer power supply transforms alternating current (AC) from a wall socket of mains energy into low-voltage direct current (DC). For the computer to operate steadily, a number of direct-current voltages are needed, and they must be precisely controlled.

Although it may not be the most talked-about PC part, the Power Supply Unit (PSU) is an essential component of any desktop. Powering your complete system is a crucial function, and choosing the incorrect one could be expensive.

Build your own computer - all the components

Storage device

 The RAM needed to save files and install programs is provided by a storage device. In contrast to random-access memory (RAM), the data stored on a storage device is stored in non-volatile memory, which means that it remains in the device's memory bank long after the computer has been turned off (unless it has been deliberately erased or uninstalled).

Hard disk drives (HDDs) and solid-state drives (SDDs) are the two most prevalent internal storage device types found in PCs. While SDDs are more costly and superior to HDDs, HDDs are the less expensive option but have slower transfer speeds. Dedicated SATA cables are used to connect these devices to your computer; for large servers and workstations, SAS connections are used instead.

There are also auxiliary storage devices, like portable HDDs and USB flash drives. Nevertheless, computers do not come with these devices installed. Depending on the specifications, they are instead connected to the PC by other channels, such as external disk drives or USB connections.

Start-up apps like Microsoft Word and Google Chrome are loaded straight from your HDD or SDD, despite the fact that storage devices have no effect on how your computer boots up. Therefore, the entire process may be interrupted by a broken storage device, which could ruin your contents. If this is the case, you will have to replace your hard drive right away, which can occasionally necessitate a hassle-some system reformat or Windows reinstall.

Build your own computer - all the components

Random Access Memory (RAM)

 There are other types of memory that computers use to store data and information, but random-access memory (RAM) is the type that is most frequently addressed. Important codes and currently utilized data are stored in a RAM device, which loads them promptly when the corresponding programs or apps are launched.

Since RAM is a volatile form of memory, all of its contents are updated when the computer is shut down. This facilitates faster loading times by enabling the device to swiftly assimilate fresh data during the subsequent session.

By purchasing a better RAM device, also known as a RAM stick, with a larger storage capacity, almost any common computer, including small laptops, can be upgraded with more RAM. However, you may not use all of the RAM depending on your computing activities, so you should know how much RAM is best for your computer based on its main use (gaming, work, etc.).

Over time, a damaged RAM stick will impair your computer's performance, leading to unexpected RAM decreases, software crashes, and failure to boot, among other issues. However, it may not always cause your computer to malfunction.

Build your own computer - all the components

Central Processing Unit (CPU)

The CPU, which plugs straight onto the motherboard and controls nearly every function of your computer, is its brain. This will probably be the first or second most expensive item in your budget, but it will be the most crucial factor in deciding non-gaming performance. Ascertain that the sockets on your motherboard and CPU are compatible.

Even a simple graphics unit that can only produce YouTube videos and the desktop is necessary for any machine. Chipmakers may omit this because they believe higher-end systems will use dedicated graphics, even though many entry-level and midrange CPUs feature integrated graphics capable of handling basic tasks.

Build your own computer - all the components

Case

 A computer case safeguards all of the important and expensive parts of a PC or other computing device. 

First, think about the computer's intended location and the case's physical dimensions. First and foremost, consider whether it can fit on a shelf or whether there isn't much room on your desk. Make sure your PC is resting on a firm, level surface and allow space for airflow both in front of and behind it. 

It is common for manufacturers to mark cases according to the biggest motherboard size they can accommodate. The most popular form factor for home desktops is ATX, where "full tower" denotes a higher case with a more capacious interior, and "mid towers" describe the standard desktop box you see out in the world.

It usually comes down to personal preference when it comes to the aesthetic aspects on cases, so don't be hesitant to get something just because you enjoy the way it looks. It's worth looking around to pick a case that suits your style because case manufacturers frequently provide color and panel changes for their most popular models.

Last but not least, you should be aware of any unique needs you may have. For instance, those who use virtual reality headsets would want to certain that their case has a USB Type-C port on the front.

Build your own computer - all the components

Motherboard

The motherboard, which is the main circuit board that secures all of the hardware, is always the first item on a list of all the parts of a computer. Every PC, whether they are personal notebooks or specialized workstations, has one. Many slots on a sturdy motherboard allow you to install different computer components, like RAM and a graphics card.

Varied motherboards have varied form factors (generic specifications like overall size, number of ports, circuitry arrangement, etc.), and only certain motherboard types are compatible with specific computer cases/chassis, particularly for desktop customization.

Instead, specialized motherboards are used for laptops, and a large portion of their built-in hardware is already permanently soldered onto the circuits of such motherboards. This is made possible by the laptop's lighter construction and smaller chassis, which only allow for minor component upgrades like RAM and storage.

A broken motherboard prevents a PC from operating to its full potential. Considering the intricacy of the wiring and electronics, a malfunctioning motherboard can quickly render your computer unusable and possibly damage other components. For desktop computers, motherboard replacements are simple; however, for laptops, this is not the case, necessitating the purchase of a new one.

Build your own computer - all the components