A document scanner is an input device that converts text documents or images into softcopy that can be manipulated into the computer. They scan hardcopy of either text or images to convert them mostly into digital images. They use a light sensor to do the scanning. The main document scanners are hand-held, flat-bed, drum, sheet-fed,…
A computer motherboard is also known as the main circuit board, logic board, or mainboard. It is the main printed circuit board on the computer. It carries most of the computer components like CPU, RAM, BIOS, BUSes, CMOS, chipsets, cache memory, jumper, and many other components. The motherboard’s main function is to house the component…
A computer monitor, also known as a screen, display, or Visual Display Unit (VDU), is an essential output device that displays data processed by your computer. In the modern digital age, the computer monitor serves as our window into the vast world of computing. Far more than just a screen, it’s an essential output device…
System software is the backbone of any computing device, enabling hardware, applications, and users to work seamlessly together. It is a silent yet indispensable layer of software that works tirelessly behind the scenes to manage and optimize your computer system. Unlike application software, which focuses on user tasks (e.g., web browsers or word processors), system…
After acquiring a computer program (system) you are required to change from the old system to the newly acquired system in a process called system changeover. It involves replacing the old system and business processes with a new one. The main system changeover methods are parallel, direct, pilot, and phased changeovers. They are implemented differently…
A printer is an essential output device that transforms digital information (soft copy) into a tangible format (hard copy). Modern printers connect to computers via USB, Wi-Fi, or Bluetooth, offering seamless integration with devices like laptops, smartphones, and tablets. The printer market offers a variety of types, including laser, inkjet, dot-matrix, drum, and the emerging…
Computer software is the invisible backbone of all modern computing systems. It is a meticulously crafted set of instructions, programs, and data that guides a computer on exactly what to do and how to do it. In this ultimate guide, we explore the types of computer software, their classifications, characteristics, and real-world examples. Whether you’re…
What is a Computer? A computer is an electronic device that processes information. It takes input, processes it, produces output, and can store information for later use. Being electronic means it needs electric power to run and is built from electronic components. Computers come in various forms, classified by their size, functionality, and purpose –…