Then 1024 kilobytes make up one megabyte. 1024 megabytes make up one gigabyte, and 1024 gigabytes make up one terabyte. A JPG file used to store a photo would be a few megabytes. The capacity of a DVD is a couple of gigabytes and an HD video can have a file size of few gigabytes.egabyte vs Gigabyte vs Terabyte. Difference between megabyte gigabyte and terabyte is a basic computer knowledge. Bit is the most basic and smallest storage unit in computing. A bit can store only whether it is 1 or 0.
Things to toss after seven years (or when you know you wonât need them any longer for taxes): 1  Child-care records. 2  Flexible-spending account documentation. 3  401(k) and retirement plan year-end statements.  IRA 1  contributions. Purchase records for investments.  Records of charitable 1  donations. Records on houses youâve  sold.
WHAT TO KEEP. The most important documents to hang on to are your annual tax returns. You should keep the actual returns forever, but you can get rid of the supporting documents after three years. That's how long the IRS has to initiate an audit. Once the time elapses, toss the records -- and shred any that reveal your Social Security number or other personal information.