Types of Computer

Mainframes Computers

Mainframes Computers used to be defined by their size, and they can still fill a room, cost millions and support thousands of users.

But now a mainframe can also run on a laptop and support two users. so today's mainframes are best defined by their operating system:  Unix and Linux and IBM's Z/OS, OS/390, MVS , VM, AND VSE.

Mainframes combine four important features:

(1) Reliable single-thread performance, which is essential for reasonable operations against a database.

(2) Maximum I/O connectivity which means mainframes excel at providing for huge disk farms.

(3) Maximum I/O bandwidth, so connections between drives and processors have few choke-points.

(4) Reliability-mainframes often allow for "graceful degradation" and service while the system is running.

Super Computer

A super computer is a high-powered computer system that has processing capabilities for greater than a typical workstation. It may be designed for a specific application, such as simulation modeling or scientific research, or may simply be created to showcase the latest computing technology. A super computer may be a built as a single machine or may consist of a cluster of computers that process data in tandem. because super computer are extremely expensive to build and maintain, only a few dozen have been built and maintain, only a few dozen have been built in the best past few decades.

Workstation Computer

A high-performance, single-user computer typically used for graphics, CAD, Software development and scientific applications. A workstation may be a RISC-based computer that runs under some version of Unix or Linux, The major vendors being Sun,Hp,IBM and SGI. It may also refer to a high-end PC vendor.

In all cases, the term implies a machine with a fast CPU and large amounts of memory and disk that is geared toward the perfessional user rather than the consumer.

PC(Personal Computer) 

A typical PC includes a system unit, monitor, keyboard, and mouse. Most PCS today also have a network or Internet Connection, as well as ports for connection peripheral devices, such as digital camera,Printers scanners speakers external hard drives and other components.

Personal computers allow us to write papers create spreadsheets track our finances play games and do many other things. If a PC is connected to the Internet, it can be used to browse the web, chec

k e-mail, communicate with friends via instant messaging programs, and download files. PCs have become such an integral part of our lives that it can be difficult to imagine life without them!

While PC stand for "personal Computer" the term can be a bit ambiguous. This is because Macintosh computers are often contrasted with PCs, even though Macs are also technically PCs. However, Apple itself has used the term "PC" to refer to windows-based machines, as opposed to its Own Computers, Which are called "macs." while the Mac/PC dilemma remains, PCs can always contrasted with other types of computers, such as Web servers and network file servers. In web servers and network file servers. In other words, if you use a computer at home or at work, you can safely call it a PC.