Meeting 1 types of computers ppt
- 1. Processor, Field Issues, Data Processed, Forms
- 2. Mainframe Computer Mini Computer Personal Computer Supercomputer General Purpose Computer Special Purpose Computer Analog Computer Digital Computer Hybrid Computer Desktop Computer Tower Computer Portable Computer Computer Laptop / Notebook Sub Notebook Computer Palmtop Computer
- 3. Computers are tools used to process the data according to the procedures that have been formulated. Computer word originally used to describe people who perform arithmetic calculations with or without tools, but the meaning of the word is then transferred to the machine itself. If in view of computer history, by definition, a computer translates as a set of electronic tools that work together, be able to receive data (input), data processing (process) and provide information (output) as well as coordinated under the control of programs stored in its memory. There are many different types of computers. Types of computer by some professionals are classified into several viewpoints, among others:
- 4. 1. Based On Processor A. Mainframe Computer This type of computer processor has the ability to use very large and is intended for multi-user. By using time-sharing technology, the effect is not so perceived by the user. This type of computer has a Central Processing Unit, Storage Device rather large (approximately 2 wardrobe) and placed in a separate place. Mainframe has an advantage not only in the speed of data processing, but also compatibility with a wide range of applications and also toughness. This machine can work for long periods without interruption at all. This factor is the reason for the company to use the mainframe. The cost to be borne will be very large when the machine stops running daily operations.
- 5. B. Mini Computer The capacity of processor used is almost the same as the mainframe, only the number of terminals that can be connected to the computer to not as much as on the type of mainframe computers. The number of terminals that can be connected only dozens. Hence the mini computer is only suitable for middle-class companies that are not so big and not too small. The physical size of the computer is not as big mainframe computers.
- 6. C. Personal Computer (PC) Type of processor used ability is not so big compared to the mainframe computer. This computer is intended for a user. By the usefulness of this type of computers, they are called personal computers or Personal Computer (PC). PC Abbreviation of "Personal Computer" PC is what most of us use every day for work or personal use. A PC generally includes a system unit, monitor, keyboard, and mouse. Most PCs today also have a network or Internet connection, as well as ports for connecting peripheral devices, such as digital cameras, printers, scanners, speakers, external hard drives, and other components.
- 7. D. Supercomputer It is a specially designed computer and a machine that is very expensive. This computer can analyze and visualize a process or phenomenon that is not visible. Supercomputer is a very high-speed manipulator numbers that are used primarily for scientific applications and engineering. The new generation of supercomputers is different from the conventional mainframe computer in the use of parallel processing. A business computer process commands one by one in a single CPU. Parallel processing includes the use of thousands of small CPUs for simultaneous processing parts of a math assignment that has been broken down into many sub tasks.
- 8. 2. Based on Field Issues A. General Purpose Computer The computer is designed to solve a variety of problems can use a variety of programs to solve the kind of problems are different. Because the general purpose computer is not designed for a particular problem, then compared to the special-purpose computer, speed is lower. In 1943, the British completed a secret code-breaking computer called Colossus to decode secret German. The Colossus's impact influenced the development of the computer industry because of two reasons. First, Colossus is not a versatile computer (general-purpose computer), it was only designed to decode secret messages. Second, the existence of the machine was kept secret until decades after the war ended.
- 9. B. Special Purpose Computer Computers are being used to address a specific problem types. Computers of this type usually have loaded a special computer program, which is usually used as control certain processes on factory machinery, military necessity or medical examination. Thus if the terms of the data that is processed then this type of computers typically use computer which has a hybrid capability. An example of a special purpose computer is a machine test echocardiography or cardiac ultrasound, or more commonly referred to as Echo, an examination that provides an overview of your heart being pulsed and can record images perfectly, which can help your doctor to evaluate your heart health , Cardiac ultrasound types most commonly used type of non-invasive, and very easy on the patient.
- 10. 3. Based On Data Processed Computer classified into 3 categories: analog computer, digital and hybrid. Each has characteristics and a slightly different way of working. A. Computer Analog Computer Analog is a term used to describe a computing tool that works on the level of analog. Level analogue here is the opponent (dual) of the digital level, which is where the digital level is a voltage level of 'high' (high) and 'low' (lower), which is used in the implementation of binary numbers. Basically, the electronic components are used as the core of an analog computer is the op-amp (operational amplifier).
- 11. B. Digital Computer Digital Computer is a computer machine created to process data that is quantitative in the form of numbers, letters, punctuation and others. Which the process is implemented based on technology that converts the signal into a combination of the numbers 0 and 1. This computer is the computer that most of what we know. Data received is data that is already in the form of digital data. While the function is used to process the data that is quantitative in the form of numbers, letters, punctuation and others.
- 12. C. Computer Hybrid Hybrid computer is a type of computer that is destined for processing data, both quantitative and qualitative in nature, or with another term combines the capabilities of a digital to analog. In other words, quantitative data are processed to produce data on the qualitative and vice versa.
- 13. 4. Based On Forms A. Computer Desktop Physical size is rather small, usually suitable to be placed on the table. Even now developed forms of desktop computers are getting thinner known as shape slim desktop. The desktop form usually comes with plenty of space called expansion slot as a place for an additional card. B. Computer Tower The size is relatively larger than the computer desktop type, suitable to be placed on the side or on the table. Computer Tower has room for more slot expansion.
- 14. C. Portable Computer Physical size is slightly smaller than the desktop and tower computers. All parts together are formed for easy to carry anywhere. This type of computer was created for people who often work from moving around the field. Freely portable means easy to carry. This is the first portable computer, weighing 55 pounds that was named IBM Portable PC with model number 5100: First introduced: September, 1975 CPU: IBM 1.9MHz RAM: 16K, 64K max Display: 5-inch mono-chrome monitor (64 X 16 text) Storage: 200K internal tape (DC300) Port: tape / printer I / O port OS: APL and / or BASIC
- 15. D. Computers Laptops / notebooks It is a computer with a physical size which can lap, smaller than portable computers, notebook computers all components are made together. E. Sub Notebook Computers The size of the paper A4, a thickness of about 5 cm, sub-notebook computers are still being developed to shrink the size.
- 16. F. Palmtop Computer This computer is made to be gripped, when compared with the size of the cassette approximately videotape beta. For the electrical current in the palmtop computer usually obtained through the battery. Source: google, wikipedia, & more
- 17. Task in 20 minutes: 1. What is a computer? 2. How many types of computer? Mention types of computer based on each category! 3. Which types of computer are you familiar with? 4. Make summary of today’s meeting!