Desktop PC

A Desktop PC usually sits on top of your desk (hence the name) or underneath your desk.
It is usually around 20x40x50cm (8x16x20 inches) in size and looks similar to the one pictured below. The PC-Case, often known as a "case," is black, grey, or white and comes in a variety of shapes with side doors, glass windows, and other features that you may or may not want.

Desktop PC vs all-in-one 

If you're looking for a computer to use primarily at home or in the office, the choice will come down to either a traditional desktop PC or an all-in-one PC. There are big differences between desktop PCs and all-in-ones to consider. The most obvious is the form factor. A desktop PC is what many consider to be the traditional 'tower' computer, where a big black or grey box is connected to a separate monitor screen, keyboard, and mouse. An all-in-one is essentially a large screen with the internal components of the computer sitting behind it. You'll still need to plug in a keyboard and mouse, though, but these are more often than not supplied in the box with an all-in-one. Outside of whether you want a traditional 'box' and separate monitor and accessories, it's the specifications (and what you’ll pay for them) that are the key difference between desktops and all-in-ones.

Home Computer

A home computer that is supposed to be used for watching videos, surfing the Internet, light, undemanding games, does not require the same performance as a gaming computer. And that means that there is a great opportunity to save money!

Firstly, you can skip powerful and expensive video cards and use a video adapter that has excellent performance and comparatively low price, e.g. AMD Radeon RX 560 4GB. In our case, this will reduce the cost.

The motherboard can also be replaced by a more inexpensive one, for example, ASUS MAXIMUS VIII HERO. A great choice for home use at a cost of.

Secondly, for home use, you can choose a less efficient processor, Core i3 will be quite enough. And in the third, we can safely give up 32GB of expensive RAM and install 8GB, this amount is enough for absolutely all home computer tasks. 

Thus, we get the optimal configuration of a fairly powerful home computer, which will easily cover your needs, and at the same time is easy to upgrade, and that - for relatively little money. 

A computer for the office

To work in the office, we will not need such a motherboard as in the examples above, why overpay for unused resources? Any LGA1151 board (this is the name of the socket for modern processors) will do the job. As a rule, a video adapter and sound are already integrated, and there is no need to buy them additionally. Special attention should be paid to the availability of necessary ports, which will be needed to connect office equipment.

Thus, an office computer will need a motherboard, a processor (Core i3), RAM (4-8GB), a drive (preferably SSD of the right size), and a case (better spacious - better cooling).