You only need one piece of software and that is the OS (operating system). Currently it is Windows 8, Mac OSx, Linux, & GNU.
a mother board and a central procssing unit or cpu
The two things that work depend on are force and distance.
Work at the computer isn't correct language. But, work on the computer isn't a complete sentence. She/he is working on the computer, is correct. But of those two, option 2 would be fine.
flint +sparks
As Commander in Chief of all armed forces and as the leader of a nation .
CLI and GUI
The two basic needs of all living things are food and water.
for a plant to carry out resperation it needs oxygen and light
peace and good government
One of two things will happen when a printer needs a new cartridge. Either an ink message will display on the printer's LCD screen, or they'll be a warning displayed on the computer monitor of which the printer is hooked up to.
Two things which work on the principle of biotech and chemtech are beer brewing and genetic engineering.
Two things which work on the principle of biotech and chem tech is a galvanometer apparatus and fire extinguisher.
Are the two not the same? People work on computers everyday to do their job, homework, or for personal life. However, no computer should be called either- you need to be able to get things done without the computer if it ever happened.