Computers have become the central devices in many business activities and homes. They can process information from a variety of sources such as inputting data from an external source, storing data, processing and displaying information, analyzing data, and printing information. The importance of computers in our lives cannot be undermined. Almost all leading industries, educational institutions, government agencies, and many other organizations require computers for efficient performance.
A computer is basically a machine which is able to execute certain sets of logical or physical instructions automatically. Modern computers are able to execute such sets of instructions thousands of times per second. This makes computers extremely valuable in industry and other settings. Computers can perform a vast array of tasks including composing texts, managing documents, processing mathematical calculations, storing data, running applications, and so on. These tasks are performed by complex sets of electronic devices used together in a particular computer.
IBM’s personal computers are generally known as PCs. IBM’s mainframe computers are also known as mainframes. IBM creates these mainframe computers which stores the vast bulk of company’s critical information and data. These systems store the records of every step and action taken by the company’s employees. Some of the important systems owned by IBM include:
Personal computers include laptops, desktop computers, tablet computers, palmtops, webcams, and others. Desktop computers include minicomputers, notebooks, workstations, and others. Notebook computers include miniature desktops. These machines come with built-in keyboards and with built-in display panels. Laptop computers include mini-notebooks which feature the same features of their desktop counterparts.
Both desktop computer cases and laptop computers differ in terms of size, speed, memory capacity, number of processors, graphics options, and number of hard drive bays. Desktop computer cases vary in size depending on the requirements of the user. They can range from small notebook computer cases to huge industrial computer cases. Laptop computers differ in terms of size and speed depending on the type of electronic device that is to be used inside it. Notebook computers are smaller than desktop computers.
Notebook computers are usually cheaper than personal computers because they use less processing power. A typical notebook PC has a similar amount of processing power as an average personal computer. Laptops have become a hit in the past few years due to their compact size and high-speed processing power. Many people use laptops when travelling because they are lightweight and cheap compared to airplanes.
Today, there are many different types of technologies used in the creation of computers. One of the most popular among them is the so-called computer network. Computer networking is necessary for modern computers because of the high-speed and high-volume data transfer that take place within organizations. Computer networking has made data transfers faster, more efficient, and safer.
There are three basic types of computers: analog computers, digital computers, and hybrid computers. All other computers are classified according to their processing power and capacity to store, retrieve, or distribute information. All other computers are subdivided into two more groups: microcomputers and ultra-computers. The microcomputers are divided into digital and analog computers. Digital and analog computers differ mainly in having different processing powers, although they also have some similar features.
An electronic device is any piece of hardware that stores data and processes it. Among the devices used in modern computers are microprocessors, hard disks, tape drives, random access memory (RAM), Integrated Circuits (IC), microcontrollers, virtual memory managers, videotapes/ videotape machines, audio devices, electronic databases, input devices, and printer. Microprocessors are the smallest of the components, while the hard disks and tapes are the largest. The electronic devices that make up modern computers include amplifiers, filters, integrated circuits, computer buses, graphic processing units (GPA), motherboards, logic gates, USB, and interconnects. The vacuum tubes are the medium used for transferring electronic signals.
Data storage is one of the most important tasks of modern computer. Data storage is needed for various purposes such as backing up files, data recovery, analyzing hard disk usage, controlling hardware, and powering the CPU. The computer hardware is composed of several discrete components such as registers, microcontrollers, hardware counters, memory modules, main memory, input and output devices, and USBs. Modern computers come in different forms and sizes. Some are for desktop use, some for laptop use, and others for server use. Desktop computers are designed to be easily connected to other devices used in the same machine.
IBM’s mainframe was the first computer with its own mainframe and a minicomputer running on a mainframe. Minicomputers originated from the IBM era. Minicomputers were designed to make computing power more affordable. Small minicomputers could be obtained for less than $1k, making them affordable. Today, even people with very little money can have their own personal computers through third party manufacturers and retailers.