The 2.4 GHz and 5 GHz are wireless radio frequencies that transmit and receive signals in wireless devices. Most modern routers can support both frequencies and they are set to auto-select the best for each device. For the best WiFi experience, 5GHz is the best for homes and even offices within the same room. The…
Mobile phones and smartphones have become part of human life and most people cannot imagine a life without a phone. This is because mobile phones are used in almost all aspects of our life today. According to BankMyCell, there are approximately 6.99 Billion smartphone users in the world as of 2023. This means 86% of…
Data communication is a technique of transferring data between a sender and receiver device over a channel using specific protocols. It goes hand in hand with networking. Data can be exchanged in different modes, and the quality of its transmission can be affected by factors such as attenuation, interference, and noise among others.
Direct memory access (DMA) is a technology that is used by computers to increase speed and efficiency by allowing input-output devices to access RAM directly without involving the CPU. Before the use of DMA, computers used to fully involve the processor in the whole process of sending and receiving data from input and output devices….
A command line interface is an interface where the user uses text-based commands to communicate with the system. It is also known as a character or console user interface. It was the main way for a user to interact with the computer operating system and application before the use of GUI. Today it is still…
A computer server is a computer system or program that manages and controls access to a network’s centralized resources. The server includes hardware, software, and data that is stored on them. They are powerful computers that can serve multiple clients simultaneously. The server computers are used for different purposes and functions. They include database storage,…
The difference between UEFI and the legacy boot is that UEFI is the latest technology that is more secure and user-friendly while legacy is an old less secure method. Unified Extensible Firmware Interface (UEFI) uses the GUID Partition Table (GPT) partition while the legacy BIOS Master Boot Record (MBR) partition structure. Allows devices using UEFI…
The main difference between cache and Random Access Memory (RAM) is cache has a smaller storage capacity and is faster than the main memory. While RAM stores data that is currently being executed cache stores the most frequently used instructions. The cache is within the CPU chip, unlike RAM which is a separate component on…
In this digital age, information can be presented as either a soft copy or a hard copy. Hard copies are tangible physical documents while soft copies are intangible documents. Information presented as a soft copy is usually stored on computer storage devices and can be viewed from digital device screens. Hard copy information is presented…
The information age is characterized by fast communication modes that are not limited to location and distance. Information moves in real-time across the globe. New technologies that make the information age possible such as computers, the internet, smartphone, and satellite among others have changed how humankind behaves. Technologies in the information age come with their…