11/15/2025

Computer Terms Glossary

 

Computer Terms Glossary

A

Android – Operating system for smart mobile devices (mobile phones, tablets), developed by Google.

Animation (Computer animation) – Formation of a continuous sequence of images that differ slightly from one another, simulating a visual effect of movement or process.

Application – An app, executable program.

ASCII – American Standard Code for Information Interchange.

AC (alternating current) – Alternating electric power.

Access Point – Device (like a wireless router) that enables network or internet access.

ADSL – Asymmetric Digital Subscriber Line.

AMD – American semiconductor company, competitor to Intel.

AGP – Accelerated Graphics Port, an older analog graphics port replaced by DVI.

Antivirus – Software that protects computers from malware and unauthorized access.

Autorun – Automatic execution of software from CD/DVD media.

B

Bar code – Machine-readable product code consisting of black and white bars.

Bit – Basic unit of digital information.

Byte – 8 bits.

Backup – Copy of files for protection against data loss.

BIOS – Basic Input Output System.

Broadband – Wide-band, high-capacity data transmission channel.

Browse – To view or search.

Browser – Internet browser (Chrome, Firefox, etc.).

Button – A clickable UI element.

Buffering – Temporary data storage for smooth multimedia playback.

Bluetooth – Short-range wireless communication between devices.

Blu-Ray Disc – High-capacity optical disc format.

Boot Camp – macOS application for installing Windows on Mac.

C

CPU – Central Processing Unit.

Chip – Integrated electronic circuit.

Cache – Fast-access memory.

Computer – A digital machine for data processing.

Code – Assigning symbolic/digital values for identification or classification.

CrossFire – Multi-GPU technology by AMD.

Cracking – Modifying software to remove protection mechanisms.

CMOS – Chip that stores BIOS settings.

Cloud computing – Distributed computing across networked servers.

Cookies – Data sent by websites to browsers for session tracking.

D

DDR SDRAM – Type of computer RAM.

Dual Core – Processor with two cores.

Display – Visual output device (LCD, LED, Plasma).

DirectX – Multimedia API suite for Windows.

DVD – Digital Video Disc optical media.

Driver – Software enabling communication with hardware.

Download – Receiving data from the internet.

DOS / MS-DOS – Disk Operating System for x86 computers.

Domain name – Unique identifier of a website or online resource.

E

Enable – To activate.

Encryption – Securing information by encoding it.

Enter – Confirm/execute a command.

E-mail – Electronic mail.

Excel – Spreadsheet software by Microsoft.

e-Government (e-Uprava) – Online platform for administrative services.

ECC memory – Error-correcting RAM used in critical systems.

F

File – Stored data unit on a computer.

Fingerprint reader – Biometric security device.

File format – Standardized structure for storing digital data.

Folder – Container for files.

Font – Typographic style of characters.

Form factor – Size and shape standard of hardware components.

Facebook – Social networking platform.

Firewall – Network security system preventing unauthorized access.

Firmware – Embedded hardware-level software.

Flash memory – Rewritable non-volatile memory.

FSB – Front Side Bus, CPU interface.

G

Google – Global IT corporation.

GPU – Graphics Processing Unit.

GIF – Graphics Interchange Format.

GPS – Global Positioning System.

Gmail – Google email service.

H

HTML – Web markup language.

Hacker – Person accessing systems without authorization.

Hard disk drive (HDD) – Mechanical storage device.

HDMI – High-Definition Multimedia Interface.

Hotspot – Device sharing its internet connection over WiFi.

Hosting – Service for storing and managing online content.

I

IP – Internet Protocol.

IP address – Unique numerical device identifier.

Inbox – Storage for incoming email.

Interface – Medium for user-hardware or hardware-hardware interaction.

J

Jack – Audio connector.

Java – Programming language.

Jumper – Hardware connector for circuit configuration.

K

Kbps – Kilobits per second.

Keyboard – Input device for typing.

Kernel – Core part of an operating system.

L

LAN – Local Area Network.

LCD – Liquid-Crystal Display.

LED – Light-Emitting Diode.

Level – Layer, degree, or stage.

M

Mile – Unit of distance (nautical or land).

Modem – Modulator-demodulator device.

Motherboard – Main circuit board.

Memory card – Removable storage card (SD, M2, XD).

Master device – Primary device in a hardware configuration.

N

NTFS – New Technology File System.

Network – Connected digital systems.

Northbridge – Motherboard chip linking CPU with RAM and GPU.

O

OEM – Original Equipment Manufacturer.

Operating system – Software managing hardware (Windows, macOS, Linux).

OLE – Object Linking and Embedding by Microsoft.

Open Source Software – Free, publicly available software.

Optical cable – Cable transmitting information via light.

Outsourcing – Using external service providers.

P

Password – Authentication string.

PC – Personal Computer.

PCI Express – Expansion slot standard.

Power Supply – Computer power unit.

Patch – Software update or modification.

Partition – Logical section of a storage drive.

R

RAID – Array of disks for redundancy or performance.

RAM – Volatile system memory.

ROM – Read-only memory.

Router – Device for routing network traffic.

rpm – Rotations per minute.

Rooting – Gaining privileged access on Android.

Reballing – Re-soldering chip contacts on a motherboard.

S

SEO – Search Engine Optimization.

Syndication – Distributing content to multiple platforms.

Safe Mode – Minimal OS startup mode.

Skype – Communication software.

Switch – Network device grouping data traffic.

Semiconductor – Material with controlled conductivity.

SSD – Solid State Drive.

Socket – CPU slot on motherboard.

SPDIF – Digital audio interface.

Slave – Secondary hardware device.

Smartphone – Mobile device with advanced capabilities.

Street View – Google’s panoramic imagery service.

T

Touch screen – Touch-sensitive display.

Trojan Horse – Malicious software type.

Thermal paste – Heat-conductive paste for CPUs/GPUs.

Torrent – Peer-to-peer data transfer protocol.

torrent file – Metadata file for torrent distribution.

U

UPS – Uninterruptible Power Supply.

Upload – Sending data to the internet.

Update – Software or data upgrade.

USB – Universal Serial Bus.

User Name – Account identifier.

UEFI – Successor to BIOS, firmware interface.

V

VGA – Video Graphics Array.

W

WiFi – Wireless communication technology.

Windows – Operating system by Microsoft.

Web Design – Creating and structuring web pages.

11/14/2025

Typical Router Problems and How to Fix Them (Updated 2025)

 

Introduction

Your router is the heart of your home network. If your WiFi keeps dropping, speed is inconsistent, or devices randomly disconnect — the issue is usually a simple configuration problem, interference, or an aging router.
Here is a complete guide with real-life, practical fixes based on years of hands-on experience.




1. Weak WiFi signal in certain rooms

Symptoms:

  • full bars but slow speed

  • WiFi disappears in the bedroom/kitchen

  • speed much lower on phones than on a laptop near the router

Causes:

  • walls, tiles, concrete

  • interference from microwaves, Bluetooth, smart devices

  • poor router placement

Fix:
✔ Place the router higher and centrally
✔ Don’t hide it behind a TV or furniture
✔ Enable 5GHz (faster, cleaner signal)
✔ For larger homes: use a WiFi extender or mesh system


2. Internet works sometimes, then stops (intermittent connection)

Causes:

  • router overheating

  • outdated firmware

  • network congestion

Fix:
✔ Restart router for 30 seconds
✔ Update firmware from admin menu
✔ Keep router in open, ventilated space
✔ If over 4 years old — consider replacement


3. Slow speed despite having a good internet plan

Causes:

  • overcrowded WiFi channel

  • old 2.4GHz router

  • wrong channel settings

Fix:
✔ Switch to a less crowded WiFi channel
✔ Use 5GHz when possible
✔ Scan signals using “WiFi Analyzer”
✔ Consider buying your own, better router


4. Devices connect to WiFi but have no internet

Causes:

  • ISP issue

  • DNS failure

  • wrong IP assignment

Fix:
✔ Test connection via cable
✔ Set manual DNS (Google DNS):
8.8.8.8 / 8.8.4.4
✔ Restart router and modem


5. Devices refuse to connect (password error, WPS, DHCP)

Fix:
✔ Disable WPS
✔ Change SSID + password
✔ Ensure DHCP is ON
✔ If nothing helps — factory reset (10 sec button)


6. Router freezes or restarts by itself

Causes:

  • overheating

  • faulty power adapter

  • weak hardware

  • corrupted firmware

Fix:
✔ Improve airflow
✔ Replace adapter
✔ Update firmware
✔ Replace router if crashing under heavy load


7. Interference in apartment buildings (2.4GHz)

Fix:
✔ Use 5GHz whenever possible
✔ On 2.4GHz stick to channels 1, 6 or 11
✔ Re-test using “WiFi Analyzer”


8. When should you replace your router?

Replace if:

  • older than 5 years

  • lacks 5GHz

  • overheats

  • unstable under multiple devices

  • WiFi much slower than cable


Conclusion

Most router problems are easy to solve once you know where to look. If issues persist, the router is likely outdated or the problem is coming from your ISP line.

How to Start With Crypto Safely and with Minimal Risk (Beginner’s Guide – 2025)

 

Introduction

Cryptocurrencies attract millions of new users every year, yet beginners often lose money because they rush, trust the wrong people, or misunderstand the basics.
If you want to enter the crypto world safely and without unnecessary risk, this guide is for you.


1. Step: Understand the Fundamentals First

Before you invest even 1 dollar, learn the basics:

  • what blockchain is

  • the difference between Bitcoin, altcoins, and stablecoins

  • why volatility matters

  • what makes crypto risky



2. Step: Choose a Reliable Exchange

Using unregulated or suspicious exchanges is the #1 reason beginners lose funds. Choose platforms with:

  • long-standing reputation

  • high trading volume

  • global regulation

  • mandatory KYC verification



3. Step: Enable 2FA Security Immediately

Turn on two-factor authentication (Google Authenticator or Authy).
SMS 2FA is better than nothing — but app-based 2FA is far safer.



4. Step: Don’t Store Your Crypto on Exchanges Long-Term

Use:

  • Hardware wallets for long-term storage

  • Non-custodial mobile wallets for small amounts

Reason: if the exchange gets hacked or frozen, you don’t control your coins.



5. Step: Start Small and Practice First

Do a practical test:

  • deposit $20–30

  • buy a small amount of crypto

  • withdraw it to your wallet

  • send it back to the exchange

Once you fully understand how transfers work — then consider larger amounts.



6. Step: Only Invest in Projects You Understand

Avoid investing in:

  • meme tokens

  • projects with no real utility

  • anything promising “guaranteed profit”

If you can’t explain the project in two sentences — don’t invest.



7. Step: Don’t Chase Pumps or Panic During Dips

Beginners lose the most money when they:

  • buy during sudden price spikes

  • sell in panic

  • follow hype and rumors

Best strategy: slow, calm, logical decision-making.



8. Step: Beware of Scams — They’re Everywhere

Most common scams:

  • guaranteed returns

  • “send 1 BTC, get 2 BTC back”

  • fake Telegram/WhatsApp mentors

  • phishing websites

  • fake giveaways

Golden rule:
Nobody legitimate will ask you to send them money.



Conclusion

Crypto can be profitable, but only if you approach it with knowledge, safety, and patience.
Education protects you more than any trading strategy.

Explanation of basic crypto terms

Top 10 Most Stable Companies for Long-Term Investing

  Top 10 Most Stable Companies for Long-Term Investing (2025 Overview) Introduction Long-term investing focuses on companies that show: ✔...