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Classification of Computers Type of Computer. About Dinesh Thakur. Related Articles. What is Computer? What is BUS? What is supercomputer? What is a Minicomputer? Definition What is analog Computer? What is Floppy Disk?
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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. However, these pen-based devices rely on handwriting recognition technologies, which are still in their infancy. Hand-held computers are also called PDAs, palmtops and pocket computers. Palmtop is small computer that literally fits in your palm. Compared to full-size computers, palmtops are severely limited, but they are practical for certain functions such as phone books and calendars.
Palmtops that use a pen rather than a keyboard for input are often called hand-held computers or PDAs. Because of their small size, most palmtop computers do not include disk drives. Palmtops are also called PDAs, hand-held computers and pocket computers. A typical PDA can function as a cellular phone, fax sender, and personal organizer. Unlike portable computers, most PDAs are pen-based, using a stylus rather than a keyboard for input.
This means that they also incorporate handwriting recognition features. Some PDAs can also react to voice input by using voice recognition technologies. Shortly thereafter, several other manufacturers offered similar products. To date, PDAs have had only modest success in the marketplace, due to their high price tags and limited applications. However, many experts believe that PDAs will eventually become common gadgets. Another type of computer is Micro Computer which is design to support more than one user at a time but it can be used by one person at a time.
It is a computer of a size intermediate between a microcomputer and a mainframe computer and includes a microprocessor, memory, input and output facility and it comes equipped with at least one type of data storage, usually RAM. Typically, mini computers have been stand-alone computers sold to small and mid-size businesses for general business applications and to large enterprises for department-level operations.
Mini computers were designed for control, instrumentation, human interaction, and communication switching as distinct from calculation and record keeping. They have great storage capacity and work at a high speed rate. It is often use in place where several people have to work at the same time, so it let many users use data at the same time without any inconvenient. Mini computers are not only used in organization for work but many of mini computers are also used as personal computer. It has a large cheap array of silicon logic gate which allows utility programs and self-booting kernel to be stored within microcomputers.
These stored programs let the minicomputer to automatically load further more complex software from external storage device without the user intervention. The Minicomputers were first built in in s and they immediately became a huge success as 40, of the minicomputer systems were immediately sold of making the computers hugely available to the general public. With such a successful market possibility many companies stepped in to venture in the minicomputer market. Some significant characteristics and historical facts about the mini computer system have been summarized as follows:.
They are much smaller in size than the mainframe computer systems. As such they do not occupy an entire room but usually occupy space similar in size to that of a standard refrigerator. Their invention was possible because of the invention of core memory technologies and transistors. Minicomputers can give parallel access to up to users. Hence they were used in places such as business organizations for maintaining billings and finances.
Minicomputers have eventually evolved in to microcomputers. With the launch of microcomputers, the public have.
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