It varies a lot, depending on whether you have an older model or a newer one. A new computer nowadays (as of 2017) typically includes at least 1/2 TB for a portable computer, and at least 1 TB for a desktop computer - and especially for desktop computer, it is easy to buy a larger hard disk, for example 2 or 3 TB.
Compressed files are used to save disk space.
No.
Disk space
Yes, but an insignificant amount.
Check that if your computer is affected by worm
If by "Cleaning up" you mean "deleting data" then space Will free up.Defragging or "Checking Disk" will not create free space.
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Gigabyte. A measure of file size or disk space.
A 120GB HDD hard disk is considerably ok for a computer. However, here in my country, computer sold out there all have an average of about 160GB hard disk. If you do not need a lot of storage space, it is quite fine. It would be better if you have a high GHz and a big RAM, so that your computer doesnt lag so much.
The function of the disk clean up is to free up space on the hard drive of a computer by finding and deleting unnecessary files. Performing a disk cleanup also allows the computer to run faster.
You can allocate unallocated disk space by creating a primary or secondary partition (or both if you have enough space). Start->Control Panel->Administrative Tools->Computer Management->Storage->Disk Management, right click on the unallocated space->Create partition and then follow instructions.
go to my computer and click any drive.for eg. C drive.right click the c drive icon,choose properties.the disk space in your computer will be shown in the form of a pie chart.there is also an option called disk clean up to clean up the disk.