Why hard drive and memory card carries less
space than promised?
Have you ever questioned why computers invariably indicate that your
hard drive or memory card encompasses a smaller storage capability than
what’s publicized on the box? It's not because you bought a defective
card or hard drive, it’s not because of your card came preloaded with a
bunch of unwanted files and it’s not as a result of the makers are
cheating you by skimping out on the cupboard space. The answer is that
they are not marketing it falsely at all. Lets tak a closure look on
this issue!
Secretes behind the scenes!
Basically the manufacturer considers 1 Megabyte to be 1000 Kilobytes, 1
Gigabyte to be 1000 Megabytes, 1 Terabyte to be 1000 Gigabytes and so
on. This is correct considering that kilo means 1000 and mega means
1000000 (10^6). However, computers calculate on base 2 and to them, 1 MB
is actually 1024 kilobytes, 1GB is 1024MB and 1 TB is 1024GB. This
difference in the method of computation is responsible for this "missing space".
From a manufacturer's point of view, the 1 TB will have 1000*1000*1000*1000 =1000000000000 bytes.
From a computer's point of view, 1 TB is actually 1024*1024*1024*1024 = 1099511627776 bytes.
So, a hard drive that promises to have 1 TB storage space will actually display 931.32 GB, 1099511627776-1000000000000 = 99511627776 bytes (92.68 GB) less storage space when connected to a computer.
Lets take an example with 1 TB space,
From a manufacturer's point of view, the 1 TB will have 1000*1000*1000*1000 =1000000000000 bytes.
From a computer's point of view, 1 TB is actually 1024*1024*1024*1024 = 1099511627776 bytes.
So, a hard drive that promises to have 1 TB storage space will actually display 931.32 GB, 1099511627776-1000000000000 = 99511627776 bytes (92.68 GB) less storage space when connected to a computer.
| Space Offered | Actual Space | Difference |
| 100GB | 93.13GB | 6.87GB |
| 250GB | 232.83GB | 17.17GB |
| 500GB | 465.66GB | 34.34GB |
| 1TB | 931.32GB | 92.68GB |
| 2TB | 1862.64GB | 185.36GB |
Different Technologies And Their Founders
Most of us are
using internet services but mostly unaware about their founders. So here
is the list of founders for top 22 web services that you should know.
Different Technologies & Their Founders
1. Google: Larry Page & Sergey Brin
2. Facebook: Mark Zuckerberg
3. Yahoo: David Filo & Jerry Yang
4. Twitter: Jack Dorsey & Dick Costolo
5. Internet: Tim Berners Lee
6. Linkdin: Reid Hoffman, Allen Blue & Koonstantin Guericke
7. Email: Shiva Ayyadurai
8. Gtalk: Richard Wah kan
9. Whats up: Laurel Kirtz
10. Hotmail: Sabeer Bhatia
11. Orkut: Buyukkokten
12. Wikipedia: Jimmy Wales
13. You tube: Steve Chen, Chad Hurley & Jawed Karim
14. Rediffmail: Ajit Balakrishnan
15. Nimbuzz: Martin Smink & Evert Jaap Lugt
16. Myspace: Chris Dewolfe & Tom Anderson
17. Ibibo: Ashish Kashyap
18. OLX: Alec Oxenford & Fabrice Grinda
19. Skype: Niklas Zennstrom,JanusFriis & Reid Hoffman
20. Opera: Jon Stephenson von Tetzchner & Geir lvarsoy
21. Mozilla Firefox: Dave Hyatt & Blake Ross
22. Blogger: Evan Willams
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