COMPUTER HARDWARE

Classifications of Computer

Super Computers

Mainframe Computers

Servers

Personal Computers

Embedded Systems

It is the most powerful in terms of speed and accuracy.It is a computer with a high level of performance as compared to a general-purpose computer.

It is a computer used primarily by large organizations for critical applications like bulk data processing for tasks such as censuses, industry and consumer statistics, enterprise resource planning, and large-scale transaction processing.

It is a piece of computer hardware or software that provides functionality for other programs or devices, called "clients". This architecture is called the client–server model.

Types of Servers

File Server

Database Server

Print Server

FTP (File Transfel Protocol) Server

Application server

Web Server

It is a multi-purpose microcomputer whose size, capabilities, and price make it feasible for individual use. Personal computers are intended to be operated directly by an end user, rather than by a computer expert or technician.

It is a computer system—a combination of a computer processor, computer memory, and input/output peripheral devices—that has a dedicated function within a larger mechanical or electronic system.

Elements of The Computer System

Hardware

Software

People (users)

Procedure

Data

Connectivity

Refers to the external and internal devices and equipment that enable you to perform major functions such as input, output, storage, communication, processing, and more.

Data is an individual unit that contains raw materials which do not carry any specific meaning. Data doesn't depend on information.

Refers to anything that has to do with the role of people in the development or use of computer software and hardware systems, including such issues as developer productivity

Describes how well hardware or software devices can communicate with other devices. For example, a computer mouse capable of interacting with desktop computers, laptops, smartphones, and tablets would be described as having good connectivity.

Is a set of coded instructions that tell a computer how to run a program or calculation. Many different types of programming languages build a procedure.

Is a set of computer programs and associated documentation and data. This is in contrast to hardware, from which the system is built and which actually performs the work.

Components of The Computer System

Input

Process

Output

Storage

is a technology consisting of computer components and recording media that are used to retain digital data. It is a core function and fundamental component of computers.

Any information processed by and sent out from a computer or other electronic device is considered output. An example of output is anything viewed on your computer monitor screen, such as the words you type on your keyboard.

Refers to any information or data that is sent to a computer for processing. It is often sent to the computer from a device such as a keyboard, mouse, or another device.

Is the instance of a computer program that is being executed by one or many threads.

Storage Devices

Primary Storage Devices

ROM

RAM

Secondary Storage Devices

Internal

External