Charles Babbage

A mechanical computer is built from mechanical components such as levers and gears, rather than electronic components. Mechanical computers can be either analog, using smooth mechanisms such as curved plates or slide rules for computations; or digital, which use gears.

ENIAC

There are four types in the classifications of the computer by size are Supercomputer, Mainframe computer, Minicomputer, and Micro Computer.

They are classified according to purpose, data handling and functionality. According to purpose, computers are either general purpose or specific purpose. General purpose computers are designed to perform a range of tasks.

On the basis of size there are four types of computer. They are minicomputer, micro computer, mainframe computer and super computer. Super computer is the fastest, most expensive, big in size, and most powerful computer that can perform multiple tasks within no second.

Classes by purpose

• Microcomputers (personal computers)
• Minicomputers (mid-range computers)
• Mainframe computers.
• Supercomputers.
• Servers.
• Workstations.
• Information appliances.
• Embedded computers.

A microcomputer is a complete computer on a small scale, designed for use by one person at a time. An antiquated term, a microcomputer is now primarily called a personal computer (PC), or a device based on a single-chip microprocessor. Common microcomputers include laptops and desktops.

The Modern PC is thinner, lighter, faster! It ups the ante in every way, from form to function and all the innovations in between. Powered by Intel’s best-ever generation of core processors and built to run the Windows 10 operating system, Modern PCs are up to 200% faster and more responsive than a 5-year-old PC.

Basic Applications of Computer

• Home. Computers are used at homes for several purposes like online bill payment, watching movies or shows at home, home tutoring, social media access, playing games, internet access, etc.
• Medical Field.
• Entertainment.
• Industry.
• Education.
• Government.
• Banking.
• Business.

Types

• Workstation.
• Desktop computer.
• Laptop.
• Tablet.
• Smartphone.
• Ultra-mobile PC.
• Pocket PC.
• Palmtop and handheld computers.

What are the different types of personal computers?

• Workstation.
• Desktop computer.
• Laptop.
• Tablet.
• Smartphone.
• Ultra-mobile PC.
• Pocket PC.

There are seven types of Computer 1 Supercomputer 2 Mainframe 3 Microcontroller 4 Server Computer 5 Personal Computer 6 Workstation computer 7 smartphone. There are Four Different Computer Types We have four different computer types classified according to their performance, power, and size.

5 parts of a computer

• A motherboard.
• A Central Processing Unit (CPU)
• A Graphics Processing Unit (GPU), also known as a video card.
• Random Access Memory (RAM), also known as volatile memory.
• Storage: Solid State Drive (SSD) or Hard Disk Drive (HDD)

Here are the components and peripherals necessary to assemble a basic modern PC system:

• Motherboard.
• Processor.
• Memory (RAM)
• Case/chassis.
• Power supply.
• Floppy drive.
• Hard disk.
• CD-ROM, CD-RW, or DVD-ROM drive.

Computer systems consist of three components as shown in below image: Central Processing Unit, Input devices and Output devices.

It is generally composed of three major elements: the processor (central processing unit or CPU), the memory, and the input output (I/O) devices.

Supercomputer

There are basically two kinds of internal memory: ROM and RAM. ROM stands for read-only memory. It is non-volatile, which means it can retain data even without power.

The six primary components of a computer are input devices, the processor (control unit and arithmetic/logic unit) memory, output devices, storage devices, and communications devices.

See them everywhere!

• the system unit containing the processor and main memory.
• monitor.
• keyboard.
• mouse.
• hard disk drive.
• floppy disk drive.
• CD/DVD drive.
• speakers.

There are different types of computer system: Personal computer, Workstation, Minicomputer, Mainframe and Supercomputer.