How To Remove Old Psu In Dell Inspiron 531 Desktop And Put In New One Correctly.

What is the difference between a laptop and a desktop computer?

A laptop is a personal computer that can be easily moved and used in a variety of locations. Most laptops are designed to have all of the functionality of a desktop computer, which means they can generally run the same software and open the same types of files. However, laptops also tend to be more expensive than comparable desktop computers.How is a laptop different from a desktop?Because laptops are designed for portability, there are some important differences between them and desktop computers. A laptop has an all-in-one design, with a built-in monitor, keyboard, touchpad (which replaces the mouse), and speakers. This means it is fully functional, even when no peripherals are connected. A laptop is also quicker to set up, and there are fewer cables to get in the way.You'll also have to the option to connect a regular mouse, larger monitor, and other peripherals. This basically turns your laptop into a desktop computer, with one main difference: You can easily disconnect the peripherals and take the laptop with you wherever you go.Here are the main differences you can expect with a laptop.Touchpad: A touchpad—also called a trackpad—is a touch-sensitive pad that lets you control the pointer by making a drawing motion with your finger.Battery: Every laptop has a battery, which allows you to use the laptop when it's not plugged in. Whenever you plug in the laptop, the battery recharges. Another benefit of having a battery is that it can provide backup power to the laptop if the power goes out.AC adapter: A laptop usually has a specialized power cable called an AC adapter, which is designed to be used with that specific type of laptop.Ports: Most laptops have the same types of ports found on desktop computers (such as USB), although they usually have fewer ports to save space. However, some ports may be different, and you may need an adapter in order to use them.Price: Generally speaking, laptops tend to be more expensive than a desktop computer with the same internal components. While you may find that some basic laptops cost less than desktop computers, these are usually much less powerful machines.Hope It HelpsPlease Upvote

Can I start my computer without an HDD?

To “start” a computer I will assume that you mean bootstrap a computer. This means that the system will go through all it’s normal bios checks (does the computer have a CPU, RAM, NIC, DISK, etc). The the computer starts by checking the two most critical components first: a CPU, RAM. Then it moves into the additionally device checks such as the NIC, Keyboard, Mouse, DISK, other bus attached devices ( PCI/PCI-E ). So yes you can start a computer without an internal drive.I think the better question would be, can you boot a computer into an operating system without an internal drive?The bios of modern computers there is typically a bootable device selection screen which allows you to select the primary boot device. This device selection can allow you to select a NIC (pxe boot) which will allow the computer to ask the network for a boot image from which to boot into an operating system. PXE booting is fairly common in large scale deployments as it’s the fastest way to get lots of systems up and running quickly. So yes, you can boot into an operating systems without an internal drive too (via network pxe booting).