Computer Stuff

Learn about computers

What makes a laptop different from a desktop?

• Portable

• Battery Powered

• Integrated display

• Integrated keyboard/touchpad

• Smaller, replaceable components

What is the most common laptop storage upgrade? And why?

Replace an HDD with an SSD

• Faster boot

• Faster Applications

• Lower power usage

• No moving parts

Which storage device uses magnetism?

HDD
NOT:

• SDD - Solid State Drive

• NVMe - Non-Volatile Memory express

• M.2 - is a form factor and connector designation

M.2

Physical form factor

Can be SATA

Can be NVMe

Common size: 2280 - or, 22 mm wide and 80 mm long

NVMe - name 4 traits

• SSD protocol

• Uses PCIe

• Very fast

• Low latency

What is PCIe used for?

High-speed communication bus used by:

• Graphics cards

• NVMe SSDs

• Expansion cards

Which component stores data when the computer is off?

Storage:
Not RAM

• HDD

• SSD

• NVMe SSD

Which component loses its contents when power is removed?

RAM - Volatile memory

What device captures video?

Webcam - Usually integrated into the display bezel.

What does NFC stand for?

Near Field Communication

Very short range wireless communication.

Typical NFC range?

About 4 cm (1.5 inches)

What device captures sound?

Microphone - Usually located near the webcam; sometimes to the left and right of the camera.

Which laptop component is MOST commonly replaced due to wear?

Battery

Capacity decreases over time because of charge cycles.

Which laptop component often fails from liquid spills?

Keyboard

Name three laptop input devices.

• Keyboard

• Touchpad

• Touchscreen

What is latency as far as drives are concerned?

The time between requesting data and the drive beginning to transfer it.

what does PCIe stand for?

Peripheral Component Interconnect Express