What does excel spreadsheet mean? Create a spreadsheet.
EXCEL spreadsheet processing software is an important member of office automation software developed by Microsoft. After many improvements and upgrades, the latest version is EXCEL2000. It can easily make all kinds of spreadsheets and use formulas and functions to perform complex operations on data; Using various charts to represent data is intuitive and clear; Using hyperlink function, users can quickly open files on LAN or Internet and share workbook files with Internet users anywhere in the world.
EXCEL provides many very large blank worksheets, each worksheet consists of 256 columns and 65536 rows, and the intersection of rows and columns forms a cell. Don't underestimate that the cells on the screen are not very big. Each cell can hold 32,000 characters. Such a large worksheet can meet the business needs of most data processing; Storing paper data in EXCEL worksheet has changed the processing and management of data qualitatively, making the data change from static to dynamic, and making full use of computer to process it automatically and quickly. In EXCEL, the data in the worksheet can be searched, classified, sorted and filtered without programming, and various data can be analyzed by using the functions provided by the system.
Data management
After starting EXCEL, a blank form composed of horizontal lines and vertical lines will be displayed on the screen, and data can be directly filled in, thus forming various forms in real life. Such as student registration form, examination report form, salary table, price list, etc. However, there are various types of data in different columns of the table. For users, creating a table is similar to their daily habits. EXCEL will automatically distinguish between number type, text type, date type, time type and logic type without special specification. Editing tables is also very convenient. Rows, columns or cells of tables can be inserted and deleted at will. Modify the data in font, size, color and shading.
Excel spreadsheet and Microsoft Charles
Charles. Who's Charles Simonyi? What you see is what you get? Inventor, this is the core of the Windows system that Microsoft relies on to dominate the world, Charles? Simone also established Microsoft's programmer management system. His title at Microsoft is Chief Architect, which is the core of Microsoft's highest think tank. He is a doctor of computer science from Stanford University. What is he talking about? Hungarian symbol? Doctoral thesis is the first course that every Windows programmer must study. Microsoft applications such as Word Word and Excel were successfully developed under his leadership. Charles. Simone is a legend in the history of software.
Juvenile science fan
Simone grew up in Budapest, the Hungarian capital, in the late 1950s (Andy Grove, president of Intel Corporation, is also a very famous figure in the United States). The typical family background of most American programming geniuses is that children are particularly smart but introverted, and pay more attention to technology because the scientific world is more reliable to them than the adult world, and they grow up in their own world. Simon's family is very different. He lives in an environment that encourages him to think and express his views. His father is a professor of electronic engineering and thinks that solving problems is an indispensable part of personal growth. And problem solving is the most important work of computer programming. Unlike other parents with programming talent, they can't give their children any guidance. Simonyi's father played an important role in his intellectual growth.
? My father's method is to assume that the rescue method already exists? Simone recalled: This is a good way to answer questions. I once asked him a question: how many horses do you need to do this? He answered at once. Five horses, do you think I am right or wrong? When I pointed out that it couldn't be five horses, he said, well, if not five, it must be several. Can you work it out? Of course I can work it out, because when I deny five horses, the answer has already come out. This reverse solution diverted my curiosity about the answer. This curiosity is mainly afraid that there is no way to solve the problem. ?
Three years and three generations of computers.
With the help of his father, Simone began to contact computers at the age of 16. I sleep with my computer? Simone recalled with a smile. His father found him a job and asked him to look after the UralII computer at night in the university. It was an old vacuum tube computer with only 4000 bytes of memory, which was under Simone's control all night.
Excel spreadsheet development history Microsoft launched its first spreadsheet software-Multiplan, which was a great success in CP/M system, but in MS-DOS system, multiplan lost to Lotus 1-2-3 (an earlier spreadsheet software). This incident prompted the birth of Excel, just as the research code of Excel is DougKlunder: Do what Lotus 1-2-3 can do, and do it better. 19EXCEL development history
1983
Bill Gates called Microsoft's top software experts for a three-day meeting at the Red Lion Hotel in Seattle? Brainstorming meeting? . Gates announced that the purpose of this meeting is to launch the fastest spreadsheet software in the world as soon as possible.
1985
The first Excel was born, only used in Mac system.
1987
Also produced the first Excel for Windows system (directly bundled with Windows environment, version number in Mac is 2.0). Lotus 1-2-3 cannot be applied to Windows system for a long time. By 1988, the sales of Excel exceeded 1-2-3, which made Microsoft stand in the leading position of PC software manufacturers. This incident led to the replacement of the overlord of the software kingdom. Microsoft consolidated its strong competitor position and found the direction of developing graphics software.
After that, every two years or so, Microsoft will launch a new version to expand its advantages. At present, the latest version of Excel is Microsoft Office Excel 2013.
In the early days, Excel became the target of trademark law because it had the same name as the software sold by another company. After trial, Microsoft was asked to name the software after Microsoft Excel in its official documents and legal documents. However, over time, this practice has gradually disappeared. Although Excel provides a lot of user interface functions, it still retains the functions of the first spreadsheet software VisiCalc: rows and columns form cells, and data, formulas related to data or absolute references to other cells are stored in cells. Excel is the first spreadsheet software that allows users to customize the interface, including fonts, text attributes and cell formats. The function of "intelligent recalculation" is also introduced. When the cell data changes, only the relevant data will be updated, while the original tabulation software can only recalculate all the data or wait for the next instruction. At the same time, Excel also has powerful graphic functions.