Microsoft Excel is a spreadsheet developed by Microsoft for Windows, macOS, Android and iOS. It features calculation, graphing tools, pivot tables, and a macro programming language called Visual Basic for Applications.
Volatile memory is computer memory that requires power to maintain the stored information.It is a temporary memeory which cannot contain information permanently.
Compact disc (CD) is a digital optical disc data storage format that was co-developed by Philips and Sony and released in 1982.
These are actually made to replace floppy disks that were used to store files and programs from the computer.
The format was originally developed to store and play only sound recordings but was later adapted for storage of data (CD-ROM).ese CD's uses Laser technology.
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