A Computer is a programmable electronic device designed to accept data, perform prescribed mathematical and logical operations at high speed, and display the results of these operations. Mainframes, desktop and laptop computers, tablets, and smartphones are some of the different types of computers. 2. Here are the Basic Components of a Computer: a) Input Unit - Data and instructions must enter the computer system before any computation can be performed on the supplied data. The input that links the external environment with the computer system performs this task.
They can also be attached to computers or, as terminals, to networks. They also play a prominent role in the design of digital appliances such as personal digital assistants (PDAs) and some e-readers. The popularity of smart phones, tablets, and many types of information appliances is driving the demand and acceptance of common touch screens for portable and functional electronics. Touch screens are found in the medical field and in heavy industry, as well as for automated teller machines (ATMs), and kiosks such as museum displays or room automation, where keyboard and mouse systems do not allow a suitably intuitive, rapid, or accurate interaction by the user with the display 's content. The five most common types are: 5-Wire Resistive, Surface Capacitive, Projected Capacitive, SAW (Surface Acoustic Wave), and Infrared.
Computer systems has become an essential part of life, having significant impact on modern society. A computer system consists of hardware components that have been carefully chosen so that they work well together and software components or programs that run on the computer. (TechTarget, 2018) It is a set of integrated devices that input, output, process, and store data and information. There are several types of computer systems which are “Mainframe” computer and “Desktop” computer being the main ones. A mainframe computer is a computer system that consists of powerful processors, lots of backed up storage and large amount of memory.
Figure 3, 4, 5 – Samples of Head-Mounted Display 2.2.2. Input Devices Any hardware device, that sends data to a computer is an input device. They allow users to control a computer and interact with it. They also determine the way in which users can communicate with a computer. Most popular input devices are: keyboards, mouse, digital cameras, joysticks, data suits and wired gloves.
There are many times when one catches himself/herself trying to decide on which computer system they would like to purchase; whether it’s a new consumer or old consumer of computer systems. Choosing a computer system can be easy for some and difficult for others. When it comes to computer systems, there are many different systems. For example, we have Toshiba, Macintosh, Personal Computer, Dell, and many other different computer systems. Computers are used for many reasons such as school, business, social network, and gaming.
For many individuals computer means PC, once which they could see. Movies, assume games, get ready office sheets Also wrist bindings Every day organizers but this is just a page of the book of computers. Computer intends a great deal more than an pc. A computer can simply be defined as a machine which takes instructions, perform computations and operations as needs be. These commanded instructions are known as programs and computers implement these programs to do an operation.
Computer system peripheral: A computer peripheral is an external object that provides input and output for the computer. Some common input devices include: • Keyboard • Mouse • Touchscreen Some common output devices include: • Printer • Monitor • Projector Software Resources Software resources include all sets of information processing instructions. Software is a general term for the various kinds of programs used to operate computers and related devices. Data Resources Data resources include data and database. Alphanumeric data, Numbers, Characters, Image data, Graphic shapes are the different forms of data.
The primary type of electronic equipment is very usually utilized in each computer. It's used to connect with the net using our telephone line by dialing to our ISP. And the other one is employed to attach to DSL. However, each the modems has identical forms of functions. They're used for modulation and reception.
1.4 TYPES OF COMPUTERS Since the advent of the first computer different types and sizes of computer are offering different services. Computer can be as big as occupying a large building and as small as a-laptop or a microcomputer in mobile and embedded systems. The four basic types of computer are. (1) Supercomputer (2) Mainframe Computer (3) Mini Computer (4) Micro Computer 1.4.1 Supercomputer The most powerful computers in terms of performance and data processing are the supercomputer. These are specialized and task specific computer used by large organizations.