Terminated twisted pair cables with RJ45

Advantages and disadvantages and characteristics twisted pair cable

Networking twisted pair (TP) cables are types of cables that come in pairs that are twisted. The twisting is used to reduce crosstalk and magnetic interference. They are the most common types of ethernet, CCTV, and telephone networking cable. They are simple to configure and cheaper compared to other types of guided networking media.

Twisted pair cables are cheap and simple to configure and used. However, they have low data transmission speeds and suffer from electromagnetic interference. They are characterized by having pairs that are twisted and color-coded. Cables are also categorized depending on the speed and distance of data transmission.

Soft copy VS Hard copy

Difference between soft and hard copy material

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 on different types of papers or other physical media that are tangible.

The difference between soft and hard copy is how and the mode information is presented to the user. Hard copy information is presented on physical media that are tangible while soft media are not tangible.

Network interface card, network adaptor

Functions, components, and types of  network interface card

A network interface card also known as a network controller or network adapter is a circuit board card fixed on a computer motherboard that enables connection to the network. Without a network card, either ethernet or wireless, a computer cannot connect to the internet. It acts as a physical connection (link/interface) between the computer & a properly terminated transmission cable.

The network interface card converts digital signal from the computer to electrical signal to be transmitted over the cable and vice versa when it reaches the destination computer. It operates at both the physical and data link layer of OSI layers. The types of network adaptors are Ethernet, Wireless, Fiber, and USB card. NIC is made up of components such as MAC address, connection port, processor, interface to the motherboard, and network drivers among others discussed in the article.


Difference between computer repair and maintenance

Many users use the term computer repair and maintenance interchangeably but they differ depending on when and how they are done. Computer repair is restoring a partial or total fault computer back to functionality while maintenance is the activities that are carried out to the device to reduce device breakdown.

The main difference between computer repair and maintenance is that maintenance is done to prevent repairs. Maintenance can be scheduled to be done periodically while the repair is done after the device breakdown.


Future of the information age technology

Currently, we live in the information age that is characterized by high-speed data processing and other modern technologies. As some of these technologies continue to be used we realize better and new ways to use them for human benefits. This leads to better technologies that will be common in the future. Information age technologies have a big impact on all aspects of our life.

In this article, we discuss some technologies that will characterize the next years of the information age. By the time all these technologies are fully in use maybe we may change from the information and digital age to a different age. Maybe the next age will be the artificial intelligence and robotic age, but that is an issue of wait and see.

The main information age technologies that will be fundamental to the next human era include artificial intelligence, big data, nanotechnology, machine learning, virtual reality, biotechnology, and 3D printing among others. You can explore more on the advantages and disadvantages of information age technologies in this other article.


Functions, benefits, and types of disk utility software

Computer disk health is the main factor that determines the overall computer health and the difference between losing and protecting data. Disk utility software is used to manage storage devices and specifically hard disks. As with any other type of utility software their main objective is to optimize the computer operation and secondary storage devices.

These utility programs are used to manage storage disks by cleaning, formatting, and data backup among other functions. Different types of disk utility software are disk defragmenters, partitioners, analyzers, cleaners, checkers, and compression among others. They benefit the computer by ensuring it is optimized for operations in matter storage devices.

3 floppy disk or diskette

Advantages, disadvantages, and parts of floppy disk

Floppy disks also known as diskettes are the old type of magnetic storage devices that were used in earlier computers. The initial floppy disk was just a disk without a cover. It was later covered to secure it in a floppy casing. Today’s computers don’t come with floppy drives but we have external drives connected via USB that can be used to read and write data. 

The main advantage of floppy disks was that they were cheap and portable. However, they had a small storage capacity compared to today’s storage devices. The 3 types of diskette were 8, 5.25, and the most common 3.5 inches disk. A floppy is made up of the components such as flexible magnetic material, a hub, write protect tab, a spring, a shutter, and an outer plastic casing.

Computer mouse and touchpad side by side

Difference between computer mouse and trackpad

The mouse and touchpad or trackpad are input devices used as pointing devices. Both devices achieve the same objectives of pointing, selecting, and moving the cursor among other functions of the pointing device. However, they have some differences in how they look and operate to achieve their function.

The main difference between a computer mouse and a touchpad is that users move the mouse over the flat surface while on the pad they move their finger over it. Most common trackpads used capacitive technology to sense the motion of the finger while the mouse is optical to sense the movement over the surface.


Importance, types, and processes of booting a computer

Computer system booting is the process of preparing a computer to initialize its operation. The booting checks that all hardware components are functioning well and then add the process to the operating system.

The importance of the booting process is to start and prepare the computer for the user and system use. There are 2 types of booting, cold or hard and warm or soft booting. The process of booting starts when the user clicks the power button on the system unit. Then the BIOS takes over to do the POST process. If successful it then loads the MBR to the RAM which loads the operating system to continue with the other process.


Where are the drive letters a and b?

Computer operating systems assign letters to a different drive to help both user and other programs identify the path for a file. When you add a new storage device on the computer automatically it is assigned the next letter after the last one.

Disk drive A and B in the windows operating system computer are reserved for a floppy disk that was the original booting drive. Drive A used to hold booting files while B used to hold user or program files.