There are 18 groups (columns) in the periodic table. Group 1 (also known as the alkali metals) is the column on the far left of the table. Elements in the same group have similar, but not identical characteristics. This is because they all have the same number of electrons in their outermost shell.
Software. Sometimes abbreviated as SW and S/W, software is a collection of instructions that enable the user to interact with a computer, its hardware, or perform tasks.
System software is the software that usually runs the machine such as Windows 7 or other operating systems. Utility software is software that is used to perform small tasks â¦ such as drivers and anti virus. + 18 others found this useful.