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What Are the Different Types of Digital Computer Systems?

Helen Akers
By
Updated May 16, 2024
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Digital computer systems use binary code in order to operate. In terms of binary form there are only two numbers, zero and one, that represent the sending and receiving of communication signals. There are two categories of digital computer systems, including general purpose and special purpose. The majority of digital computers are general purpose, meaning that they are designed to handle multiple applications and handle a variety of functions.

General purpose digital computer systems include mainframe, super, micro, and mini computers. Those systems that are classified as special purpose are designed for use with one application. Since most computers operate under binary form, almost every system from the desktop PC to the smart phone could be considered to be digital.

Mainframe digital computer systems are large systems that process an enormous amount of data. They are usually stored at a fixed site and are used by companies, such as airlines, that need to store and process huge quantities of data on an ongoing basis. For example, an airline reservation system must handle millions of queries regarding available flights, rates, seating assignments and upgrades. It must also process bookings and constantly update changes to seat availability, cancellations, delays and pricing.

Super computers are considered to be even larger than mainframe systems. They may be used in scientific research or financial analysis. These digital computer systems have the capability of processing the most information in the shortest amount of time.

The most prevalent type of digital computers is micro systems. This category includes personal computers in both desktop and laptop forms. Personal digital assistants (PDA) and handheld computers also fall under the category of micro computer systems. They are versatile and handle a variety of productivity functions and applications.

Desktop and laptop computers typically have the same data processing and storage capabilities. Laptops are popular for their portability. Even though desktop systems are not portable and users usually connect several peripheral devices to them, they are becoming more compact by incorporating the hard drive into the system's monitor. Flexibility has also increased with desktop systems due to wireless and Bluetooth technology. Keyboards, mouses and printers no longer have to be physically connected to a drive through a plug and play or USB cord connection.

Smaller portable computers, such as PDAs and tablet systems have begun to replace laptops. Many of the same capabilities and functions, including Internet access, e-mail communication and business productivity tools are available on these smaller, lightweight systems. Mobile computing devices tend to use wireless technology and are more convenient for traveling due to their substantially smaller size.

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Helen Akers
By Helen Akers , Former Writer
Helen Akers, a talented writer with a passion for making a difference, brings a unique perspective to her work. With a background in creative writing, she crafts compelling stories and content to inspire and challenge readers, showcasing her commitment to qualitative impact and service to others.

Discussion Comments

By Vincenzo — On Aug 18, 2014

@Terrificli -- One of the things about those computer programming languages has always been efficiency. The better languages feature compilers that produce code efficiently, whereas the slower ones do not.

A computer language is one thing, but a translator that can output efficient code that can be understood by a computer is quite another.

By Terrificli — On Aug 17, 2014

One of the problems with that "one and zero" binary scheme used by digital computers is that language makes it virtually impossible for humans to talk directly to the machine and tell it what to do. That's why programming languages were invented. Those provide a means through which people can talk to computers in a way that makes sense and the program is compiled into machine code so it can be understood by the computer.

Helen Akers

Helen Akers

Former Writer

Helen Akers, a talented writer with a passion for making a difference, brings a unique perspective to her work. With a...
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