Optical mark reader uses, advantages and disadvantages

An optical mark reader (OMR) also known as optical mark recognization is an input device used to scan and read marks made by pencil or pen. It consists of a scanner that scans a filled form to detect which option is marked.

OMRs are used in applications such as multiple-choice tests, surveys, voting systems, and other areas where users make distinct marks on the form. It has the advantage of being a more accurate and fast method of data entry. However, they are only suitable for data that have multiple choices, and the accuracy depends on how the user marks the document.

Types of Personal computes PCs which includes smartphone, laptop, tablet, desktop.

Types and uses of personal computers(PC)

A personal computer (PC) is a microcomputer that is compact, portable, effective, and reliable for use by a single person. They are mostly multiprogramming single-user types of systems. Personal computers have small screens that allow use by only one person comfortably. They are versatile devices that can be used in a variety of tasks for day to day operation of most users.

The main types of personal computers are desktops, laptops, tablets, workstations, all-in-one PC, and smartphones among others. PCs are used for personal and business benefits such as editing documents, entertainment, learning, sharing resources, and internet browsing among others discussed in the article.


Difference between peer-to-peer and client-server networks

Computer networks can be implemented using peer-to-peer and client-server architecture depending on the user requirement. The main difference between peer-to-peer and client-server is that in the client-server we have one computer that supervises and serves other computers with the requests. While on peer-to-peer no computer acts as a supervisor but they work on the same level both as servers and clients.

The client-server model is the most common network that is deployed in most organizations today since it offers more flexibility and has a central control point.


Best server for small business in 2023

With so many servers that can be used for small businesses, it can be tasking trying to choose one among them. In this article, we are going to help you make the right decision for your small business by getting the best server that will help grow your business. 

For a server computer, you need to consider factors like processor type and speed, main memory, storage, connectivity, price, and server type among others.

Server computer comes either as a tower, rack, or blade server. They all serve the same purpose but the rack and blade have more room for expansion when compared to the tower server.

Types of server OS Windows, Linux, Unix, FreeBSD, REDHAT

Features and types of server operating systems

A server operating system is a type of OS that is used to manage and control the operations of a server computer. It is also known as a network operating system (NOS). The OS provides the necessary functions that allow the server computer to manage files, applications, security, devices, and users within a network. They operate in a server-client architecture. This is where we have a central computer that serves and controls the operations of all other devices on the network.

The main features of server operating systems provide advanced security, network capabilities, virtualization, and application and user management. Examples of server operating systems are Linux, Windows, Unix FreeBSD, and Red Hat among others discussed in the article.

7 types of server computer, include file, database, application, web, virtual, etc.

Types of server computers and their functions

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, user management, security, and hosting of websites and applications, among others. The server themselves are web, application, proxy, games, DNS, virtual, etc.


Requirements and components of a server room

A server room is a space in an organization that is dedicated to housing the computer server and major networking devices. It is a critical room for any organization that has computerized its operations since that is where its data and processes reside.

The main component in the room is a computer server that stores, processes and manages data, users, and applications for the organization. Other components include routers, racks, cabinets, network switches, and UPS among others for effective operations.

To establish a server room you will need to consider room size, security, power supply of the room, temperate, and fire control among other factors we discuss in the article.

Ethernet port and cable on a network switch

Uses, function, and how to identify an ethernet port

An ethernet port is a networking interface that is found in networking devices that allows computers and other devices to connect to a network using a cable. The port is a female part of the connection where the male jack (RJ45) goes to connect the device to a wired network.

Ethernet ports are found on devices such as computers, servers, routers, and network switches among others. Computers are mostly connected using an ethernet port that is fixed on the wall and linked to either a router or switch.

The function of an ethernet port is to provide a means of connection between a networking device and the terminated ethernet cable for networking. They are used to connect computers and other networking components to the LAN or internet.


Difference between UEFI and legacy bios boot

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 technology to support unlimited disk storage.


Importance and guidelines of computer ergonomics

Computer ergonomics involves the designing of the working environment, devices, and computer system for a comfortable and safe working area. By designing computers and work environments in an ergonomically sound way, it is possible to reduce health-related issues such as carpal tunnel syndrome, vision syndrome, back pains, etc. 

The main benefit of following ergonomic guidelines is to reduce work-related injuries hence a comfortable and safe working environment. For good ergonomic practice, take breaks, adopt good posture, protect your eyes, and use the right chair among others discussed in the article. However, if we don’t follow the guidelines then our eyes will have problems, also we will have bad posture, back pains, and stress among other health issues.