Microcomputer
A microcomputer is a type of computer that operates using microchips, distinguishing it from larger, more cumbersome computing systems. This category encompasses a variety of devices, including laptops, smartphones, and automated teller machines (ATMs), and has been in use since the early 1970s. The inception of microcomputers began with Intel's introduction of the MCS-4 microprocessor in 1971, followed by influential models such as the Altair 8800 and the Apple II, which were pivotal in popularizing personal computing. Companies like Microsoft and Apple emerged during this transformative period, developing software and hardware that enhanced user experience and functionality.
Microcomputers are characterized by their integrated components, which work collaboratively to execute tasks. Key elements include input devices like keyboards and mice, a central processing unit (CPU) for processing commands, and memory types such as random access memory (RAM) and read-only memory (ROM). The ability to connect to the Internet further increases their versatility, enabling communication and interaction with other computers. Overall, microcomputers have evolved significantly, adapting to consumer needs and preferences while providing essential applications for everyday tasks.
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Microcomputer
The term microcomputer is an umbrella term used to describe all computers whose operations depend on microchips rather than large and cumbersome processors. This group includes laptops, smartphones, and automated teller machines (ATMs). The microcomputer has been in use since the 1970s, and computer scientists continue to work to find ways to make this type of computer more useful.
History
The path toward making microcomputers widely available began in 1971. That year, the Intel Corporation presented the first microprocessor to the public. This microprocessor, known as the MCS-4, included a set of four microchips. A microchip is a very small computer component that aids in specific computer functions. The MCS-4 had a central processing unit (CPU) microchip that was called the 4004. Both the microprocessor and its CPU chip were fairly basic but highly programmable, which allowed computer engineers to utilize these components in different machines. In 1974, Intel introduced the 8080, which was another microprocessor.
The 8080 was soon used in a computer called the Altair 8800 produced by Micro Instrumentation and Telemetry Systems (MITS). The Altair 8800 was sold as a kit that could be assembled at a customer’s home. Because the computer was cumbersome, it presented obvious problems. It was also limited in its functionality.
Around this time, a young computer programmer named Bill Gates and his business partner Paul Allen developed a version of the computer language BASIC that they believed would make the Altair much more functional. After changes to the computer’s software and hardware had been made, it was only a few short steps to creating a radically different experience for the home computer user. The key was to merge microchip technology with computer hardware and the BASIC programming language. Gates and Allen used this trifecta as the basis for their company Microsoft, which would go on to develop the popular Windows operating systems and become one of the most successful technology companies in the world.
The development of microcomputer technology continued into the mid-1970s, when Steve Jobs and Steve Wozniak started the Apple Corporation. The company made a huge impact on the microcomputer industry with the launch of the Apple II microcomputer in 1977. Given its small size and affordable price, the Apple II became one of the company’s most successful products. At the start of the 1980s, the International Business Machines Corporation (IBM) introduced its own personal microcomputer, the Commodore 64. This machine eventually became one of the best-selling computers in history.
Microcomputers became popular with consumers because they provided people with useful applications. One such early application was VisiCalc. This program was an early example of an electronic spreadsheet. VisiCalc performed calculations based on the values users entered into its cells. Other useful applications included Apple Writer and WordStar, two early word processing programs.
The first Windows software for IBM computers was introduced in 1985. Since that point, developments in both IBM and Apple microcomputers have continued to make them more useful. Today, the popularity of a practically microcomputer brand depends on the needs of the consumer. Windows microcomputers tend to be less expensive than Apple microcomputers, though some users consider the ease of use and increased functionality of Apple products to make the extra expense worthwhile.
Function
A microcomputer, despite the suggestion of smallness in its name, is best thought of as a team of computer parts, working together to assist the user in completing a particular task. All of these parts function smoothly because they are linked by an integrated circuit (IC). This circuitry is typically contained within a circuit board inside the computer.
One of the most important and obvious parts of a microcomputer is the keyboard. The keyboard, along with the mouse or touchpad, is an input device. An input device allows the user to give the computer specific commands.
Once the commands are given, they run through the computer’s CPU. When information is entered into a microcomputer, it is stored in the computer’s memory. Computers often have two types of memory: random access memory (RAM) and read-only memory (ROM). RAM has to do with the documents and other files the user saves on a computer, while ROM is primarily linked to the programs and software that help the computer operate. RAM can be altered, but ROM cannot.
Finally, users respond to computer processes and input additional commands based on what they see on the computer monitor. This output device links the user to the internal workings of the machine.
Another important element of the microcomputer’s functionality is its ability to interact and communicate with other computers through the Internet. Of course, the hardware of the microcomputer should not be overlooked either. A microcomputer’s hardware included the power cord, the USB slot, the CD drive, the Ethernet port, the speakers, and the modem.
Bibliography
Alfred, Randy. "April 4, 1975: Bill Gates, Paul Allen Form a Little Partnership." Wired, 4 Apr. 2011, www.wired.com/2011/04/0404bill-gates-paul-allen-form-microsoft/. Accessed 29 Dec. 2022.
"Altair 8800 Microcomputer." The National Museum of American History. Smithsonian. Web. 27 Aug. 2015. americanhistory.si.edu/collections/search/object/nmah‗334396.
Delaney, Frank. "History of the Microcomputer Revolution." Micro Technology Associates. Micro Technology Associates. Web. 27 Aug. 2015. mtamicro.com/microhis.htm.
"Intel’s First Microprocessor." Intel Corporation. Intel Corporation. Web. 27 Aug. 2015. www.intel.com/content/www/us/en/history/museum-story-of-intel-4004.html.
Kwon, Jaerock. "Lecture 1: Introduction to Microcomputers." Mobile: Intelligent Robotics Lab. Kettering University. 1 Jan. 2010. Web. 27 Aug. 2015. paws.kettering.edu/~jkwon/teaching/10-t1/ce-320/lecture/01-Introduction%20to%20Microcomputers.pdf.
"RAM, ROM, and Flash Memory." For Dummies. John Wiley & Sons, Inc. Web. 27 Aug. 2015. www.dummies.com/how-to/content/ram-rom-and-flash-memory.html.
Rockwell, Geoffrey. "Types of Computers: The Microcomputer." McMaster University. McMaster University. 15 June 1995. Web. 27 Aug. 2015. www.humanities.mcmaster.ca/~hccrs/MICRO.HTM.
Veit, Stan. "Pre-IBM PC Computers." PC-History.org. PC-History.org. Web. 27 Aug. 2015. www.pc-history.org/.
Wood, Lamont. "The 8080 Chip at 40: What's Next for the Mighty Microprocessor?" ComputerWorld. ComputerWorld, Inc. 8 Jan. 2015. Web. 27 Aug. 2015. www.computerworld.com/article/2865938/the-8080-chip-at-40-whats-next-for-the-mighty-microprocessor.html.