What does memory and storage mean in a computer?

Most people use "memory" and "storage" interchangeably, but they're two separate components with distinct roles:

What is the difference between RAM and storage? RAM is temporary; it's cleared every time you shut down. Storage is permanent;  it holds your files, OS, and apps regardless of power state. A computer needs both - RAM to run things quickly and storage to keep them safe.

Storage types available at FGTech: 

Desktop & laptop RAM

RAM determines how many tasks your system handles at once without slowing down. FGTech stocks DDR3, DDR4, and DDR5 modules in both DIMM (desktop) and SO-DIMM (laptop) form factors from Lexar and Netac, with a limited lifetime on Netac models and a 10 year limited warranty on all Lexar modules.

Best for: Laptop upgrades, desktop PC builds, workstations, students, and office systems.
Brands: Lexar, Netac

SSD & NVMe drives

Internal solid state drives replace slow hard drives with flash-based storage that has no moving parts. NVMe PCIe Gen 4 drives reach sequential read speeds of up to 7,000 MB/s; roughly 12× faster than a SATA SSD's 550 MB/s ceiling. FGTech stocks SATA SSDs, NVMe PCIe Gen 3 and Gen 4 drives, and PCIe expansion adapters from leading brands.

Best for: Gaming PCs, laptops needing faster boot times, content creation workstations, and business systems.
Brands: WD, Seagate, Toshiba, Lexar, Netac

External & internal hard drives 

Hard disk drives (HDDs) remain the most cost-effective option for high-capacity storage, particularly for backup, archiving, and surveillance. Internal HDDs integrate directly into your desktop or server, and external HDDs connect via USB and work across laptops, desktops, and smart TVs. Seagate IronWolf and WD Red drives are purpose-built for NAS enclosures and always-on operation.

Best for: High-capacity backup, desktop secondary storage, external portable storage, and surveillance systems.
Brands: Seagate, WD, Toshiba

Memory cards & micro SD 

Memory cards expand storage on cameras, drones, smartphones, dashcams, and tablets. Speed class ratings (Class 10, U1, U3, V30, V60, V90) determine whether a card can keep up with your device's read and write demands. A V30 card handles 4K video recording; a V90 card is suited for 8K and high-speed burst photography. FGTech stocks Lexar SD and microSD cards.

Best for: Cameras, action cams, drones, dashcams, smartphones, and tablets.
Brands: Lexar

NAS storage & enclosures 

A NAS (Network Attached Storage) device connects to your home or office network and makes storage accessible to multiple users and devices simultaneously, without needing a cloud subscription. It's the standard solution for small businesses managing shared files, media servers, and local backups. FGTech stocks Seagate IronWolf NAS drives, purpose-built for 24/7 operation with vibration compensation and higher endurance ratings than consumer desktop drives.

Best for: Home media servers, small business file sharing, multi-user backup, and always-on local storage.
Brands: Seagate

Which memory and storage upgrade do you need?

Frequently asked questions

What is the difference between memory and storage in a computer?

RAM is temporary working space that clears when you shut down; storage (SSD, HDD) keeps your files permanently.  Memory (RAM) is volatile; it holds data only while the system is running and clears on shutdown. Storage (SSD, HDD, memory card) is non-volatile; it retains data permanently regardless of power state. RAM affects how fast your system responds; storage affects how much you can save and how quickly you can access it.

Is SSD a storage or a memory?

An SSD is storage, not memory; it stores your files permanently, while RAM handles active processing. It uses flash-based NAND chips to store data permanently; your operating system, applications, and files all live on the SSD. RAM (memory) is a separate component that handles active processing. Both are present in a modern computer and serve different functions.

How does computer memory and storage work together?

Your computer loads files from storage into RAM for fast access. More RAM means less lag when multitasking. When you open a file or app, your computer loads it from storage (SSD or HDD) into RAM, so the processor can access it quickly. RAM is far faster than storage; DDR4 RAM operates at ~25 GB/s, while even a fast NVMe SSD tops out at ~7 GB/s. The more RAM you have, the more your system can keep active without going back to storage repeatedly, which is why RAM upgrades reduce lag in multitasking.

What size memory card should I buy?

64-128GB for casual use, 256GB+ with V30 for 4K video, V90 for professional 8K shooting. It depends on your device and use case. For a smartphone with casual photo and video use, 64GB or 128GB is sufficient. For a mirrorless camera or action cam shooting 4K video, 256GB or higher with a V30 or V60 speed class rating is recommended. For 8K or high-speed burst shooting, V90 is the professional standard. Lexar offers cards across all these speed classes at FGTech.

What is NAS storage, and do I need it?

NAS is a network-connected hard drive for shared file access across multiple devices without cloud fees. NAS stands for Network Attached Storage. It's a device with one or more hard drives that connects to your router and makes files available to every device on your network. You need it if you want local backup without cloud fees, shared file access across multiple computers, or a home media server. For small businesses, a NAS with Seagate IronWolf drives is a cost-effective alternative to cloud storage subscriptions for shared team files.

Can I upgrade both RAM and storage at the same time?

Yes, replacing an HDD with an SSD and adding RAM together costs under ₹5,000 and delivers the biggest performance jump for older laptops. If you have an HDD and 8GB of RAM, replacing the HDD with a SATA SSD and adding another 8GB RAM module will make the system feel substantially faster from the very first boot. Both upgrades together typically cost under ₹5,000 for most laptops and have a larger combined impact than either upgrade alone.

How much does it cost to upgrade a laptop’s storage in India? 

A basic SSD upgrade starts at around ₹1,500 for a 256GB SATA SSD, with 1TB NVMe options available from ₹4,000. RAM upgrades start at approximately ₹800 for an 8GB DDR4 SO-DIMM. Combined, you can upgrade both storage and memory on most laptops for under ₹5,000 — the single most cost-effective way to extend the usable life of an older machine. Browse SSD and NVMe drives at FGTech for current pricing

Why buy from FGTech?

FGTech is an authorised dealer for all brands stocked, offering manufacturer warranty on every product, GST invoices for business purchases, pre-sales compatibility support, and air-shipped pan-India delivery with no extra cost for all storage devices.

FGTech is an authorised dealer for Seagate, WD, Toshiba, Lexar, and Netac, and every product ships with a valid manufacturer's warranty. 

• Authorised dealer for all brands stocked; verifiable manufacturer warranty on every product
• Manufacturer warranty
• GST invoice - claimable for business purchases
• Compatibility support - contact FGTech's pre-sales team before ordering if you're unsure what fits your system
• Pan-India shipping with secure, anti-static packaging
• All storage products are automatically upgraded to Air shipping
• Genuine stock - no refurbished, grey-market, or counterfeit products