These computers are the cheapest among the other three types of computers. The Micro-computers are specially designed for general usage like entertainment, education and work purposes. Your email address will not be published. Facebook Twitter RSS. Four types of computers Introduction to Computing. Buy Now. Samba Amara on August 6, at am. Please can you tell me the component of these four type computers you just name.
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Data Warehouse. Javatpoint Services JavaTpoint offers too many high quality services. On the basis of data handling capabilities , the computer is of three types: Analogue Computer Digital Computer Hybrid Computer 1 Analogue Computer Analogue computers are designed to process analogue data. Advantages of using analogue computers: It allows real-time operations and computation at the same time and continuous representation of all data within the rage of the analogue machine. In some applications, it allows performing calculations without taking the help of transducers for converting the inputs or outputs to digital electronic form and vice versa.
The programmer can scale the problem for the dynamic range of the analogue computer. It provides insight into the problem and helps understand the errors and their effects. Types of analogue computers: Slide Rules : It is one of the simplest types of mechanical analogue computers. It was developed to perform basic mathematical calculations. It is made of two rods. To perform the calculation, the hashed rod is slid to line up with the markings on another rod.
Differential Analysers : It was developed to perform differential calculations. It performs integration using wheel-and-disc mechanisms to solve differential calculations. Castle Clock : It was invented by Al-Jarazi. It was able to save programming instructions. Its height was around 11 feet and it was provided with the display of time, the zodiac, and the solar and lunar orbits. This device also could allow users to set the length of the day as per the current season. Electronic Analogue Computer : In this type of analogue computer, electrical signals flow through capacitors and resistors to simulate physical phenomena.
Here, the mechanical interaction of components does not take place. The voltage of the electrical signal generates the appropriate displays. Advantages of digital computers: It allows you to store a large amount of information and to retrieve it easily whenever you need it.
You can easily add new features to digital systems more easily. Different applications can be used in digital systems just by changing the program without making any changes in hardware The cost of hardware is less due to the advancement in the IC technology. It offers high speed as the data is processed digitally.
It is highly reliable as it uses error correction codes. Reproducibility of results is higher as the output is not affected by noise, temperature, humidity, and other properties of its components. Advantages of using hybrid computers: Its computing speed is very high due to the all-parallel configuration of the analogue subsystem.
It produces precise and quick results that are more accurate and useful. It has the ability to solve and manage big equation in real-time. It helps in the on-line data processing. On the basis of size , the computer can be of five types: 1 Supercomputer Supercomputers are the biggest and fastest computers. Characteristics or applications of supercomputers: It has the ability to decrypt your password to enhance protection for security reasons. It produces excellent results in animations.
It is used for virtual testing of nuclear weapons and critical medical tests. It can study and understand climate patterns and forecast weather conditions. It helps in designing the flight simulators for pilots at the beginner level for their training. It helps in extracting useful information from data storage centres or cloud system. For example, in insurance companies. The principal characteristics of personal computers are that they are single-user systems and are based on microprocessors.
However, although personal computers are designed as single-user systems, it is common to link them together to form a network. In terms of power, there is great variety. At the high end, the distinction between personal computers and workstations has faded. The chassis or case is the metal frame that serves as the structural support for electronic components. Every computer system requires at least one chassis to house the circuit boards and wiring.
The chassis also contains slots for expansion boards. If you want to insert more boards than there are slots, you will need an expansion chassis, which provides additional slots. Then come the portable computers that are computers small enough to carry. Portable computers include notebook and subnotebook computers, hand-held computers, palmtops, and PDAs. The term refers to a computer in which the power supply, motherboard, and mass storage devices are stacked on top of each other in a cabinet.
This is in contrast to desktop models, in which these components are housed in a more compact box. The main advantage of tower models is that there are fewer space constraints, which makes installation of additional storage devices easier.
A computer designed to fit comfortably on top of a desk, typically with the monitor sitting on top of the computer. Desktop model computers are broad and low, whereas tower model computers are narrow and tall. Because of their shape, desktop model computers are generally limited to three internal mass storage devices. Desktop models designed to be very small are sometimes referred to as slimline models. An extremely lightweight personal computer.
Notebook computers typically weigh less than 6 pounds and are small enough to fit easily in a briefcase. Aside from size, the principal difference between a notebook computer and a personal computer is the display screen. Notebook computers use a variety of techniques, known as flat-panel technologies, to produce a lightweight and non-bulky display screen. The quality of notebook display screens varies considerably.
In terms of computing power, modern notebook computers are nearly equivalent to personal computers. They have the same CPUs, memory capacity, and disk drives. However, all this power in a small package is expensive. Notebook computers cost about twice as much as equivalent regular-sized computers. Notebook computers come with battery packs that enable you to run them without plugging them in.
However, the batteries need to be recharged every few hours. A small, portable computer -- small enough that it can sit on your lap. Nowadays, laptop computers are more frequently called notebook computers. A portable computer that is slightly lighter and smaller than a full-sized notebook computer. Typically, subnotebook computers have a smaller keyboard and screen, but are otherwise equivalent to notebook computers. Although extremely convenient to carry, handheld computers have not replaced notebook computers because of their small keyboards and screens.
The most popular hand-held computers are those that are specifically designed to provide PIM personal information manager functions, such as a calendar and address book. Some manufacturers are trying to solve the small keyboard problem by replacing the keyboard with an electronic pen.
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