Se vi siete mai chiesti come viene costruito un processore, date uno sguardo a questo articolo:
intel-mostra-come-si-costruisce-un-processore
Altre informazioni sul sito ufficiale Intel da cui sono state prese le immagini:
Se vi siete mai chiesti come viene costruito un processore, date uno sguardo a questo articolo:
intel-mostra-come-si-costruisce-un-processore
Altre informazioni sul sito ufficiale Intel da cui sono state prese le immagini:
Here I would want to write all personal computers and game console family bought till now.
It is just for me, just to remember my past (and a bit of present).
I will start with first family’s PC (in reality only me and my brother played):
You can see Commodore 64C’s photos and specification on wikipedia [eng]: http://en.wikipedia.org/wiki/Commodore_64.
Don’t look first photo because our PC was Commodore 64C (C64C), a restyling of previous version. If I have time, I will take it and take a photo. We still have old game tapes, a tape recorder, two digital joysticks and… a light pen with which we could design on tv screen what we wanted. Was fantastic for that time! :)
On far ’94, may be it was Christmas, my brother received the 8 bit N.E.S. See wikipedia [eng]: http://en.wikipedia.org/wiki/Nintendo#Nintendo_Entertainment_System_.28NES.29
We made a breakthrough! We didn’t have to wait from half an hour to one hour and half anymore for playing games (and sometimes Commodore’s tape crashed)! :)
That day I received my first assembled pc. Processor: Pentium II 350 MHz – Motherboard: Supermicro P65BA 440 BX – Hard Drive: 6,4 GB UDMA 33 – RAM: dimm 64 MB PC100 – Video Card: Matrox G200 SD 8 MB AGP – Floppy Drive 3.5” – Audio Card: Creative 16 bit – CD-ROM: Philips 40x – Speakers: 120W – Keyboard: IT – Monitor: Adi CRT 17” – Modem: U.S. Robotics 56KB – Printer: Epson Stylus color 640 – Operating System: Windows 98 SE.
We Paid 3.000.000 Lire (Tax included).
Now it is still alive, during “his life” I have obviously upgraded some components to work better on it: I installed 384 MB Ram, 40 GB Hard Drive, two 10/100 LAN Cards, USB 2.0 PCI card, CD-RW Drive (HP 9110i) and I changed two times the power pack. The monitor was throwed away on January 2008 ’cause sometimes the screen become cyan-blue…
First brother’s PC: a Pentium IV 1.8 GHz, 1 GB DDR400, 60 GB + 160 GB Hard Drives, 128MB Nvidia GeForce 3 video card, CD-RW Drive, DVD-RW Drive, Creative Sound Blaster Live! 5.1 audio card, 19” flat CRT Philips screen. He sold it on 17 th February 2007 because he needs something better (a lot better) to do rendering, 3D modeling, graphic design,…
My old PII 350 MHz moved on the left to make room to my new Intel Core 2 Duo Conroe E6600 2.4 GHz Socket 775, 2 GB A-Data DDR2 800 MHz PC6400, 2 x Western Digital Raptor WD740GD 10000 rpm (raid 0, EZ-Backup) hard drives + 160 GB Maxtor IDE hard drive, 256 MB Nvidia GeForce 7300 GT Video Card, Nec 7173 18X Label Flash CD/DVD-RW drive, 19” LCD Eizo FlexScan S1910.
…my brother’s truck arrived :) :) Motherboard: Tyan Tempest i5000PX (S5380); Processor: Intel Xeon Quad-Core E5335 “Clovertown” 2.0 GHz; 2 x 1 GB ECC Registered FBDIMM; Video Card: Ati Sapphire X1900GT GDDR3 256 MB 2 x DVI; 2 x SATA II 200GB Seagate Hard Drive (Raid 1).
Hard drive update on my pc.
Out: 160 GB Maxtor IDE hard drive.
In: 1 TB Samsung HD103UJ + 1 TB Western Digital WD10EADS
Processor update on my brother’s pc.
Out: Intel Xeon Quad-Core E5335 “Clovertown” 2.0 GHz
In: 2 x Intel Xeon Quad-Core E5405 “Harpertown” 2.0 GHz.
Pochi giorni fa ho sostituito il dissipatore+ventola standard del mio pc con:
Purtroppo, quello che avevo letto in alcuni forum mi si è presentato davanti:
Non ho ancora provato ad eseguire una “lappatura” come spiegato su: http://www.pcsilenzioso.it/forum/showthread.php?t=5958 e non so se mai lo farò perché il mio sostanziale abbassamento di temperatura l’ho avuto.
Quando volevo comprare il nuovo dissipatore, un altro candidato era il Noctua CPU Cooler NH-U12P, con ventola già in dotazione. Ci sono molti test in rete effettuati con questi due dissipatori; fate una veloce ricerca e troverete molto materiale a riguardo.
Potete testare la velocità di un hard drive con il semplice comando:
hdparm -tT /dev/<nome_device>
Al posto di <nome_device>, inserire il nome del vostro device: hda, sda,…
Se avete Windows e volete fare lo stesso questa prova, basta che scaricate, masterizzate e avviate una distribuzione Live di Linux (ormai quasi tutte le distribuzioni sono avviabili da cd/dvd).
I want to show you two new particular laptops that two friends of mine pointed out:
Were you looking for light laptops? Here they are!
Giving a fast view, the Asus seem to be a computer for kids, but it’s not… or not only :)
You have basic programs to work. It is powered by Linux (but it is compatible with Windows XP). You can use Wireless and ethernet connection. Only 7” screen (800×480) and 4 GB Solid State Disk drive; disk capacity is the only limit I noticed. Processor: Intel Celeron M353 900 MHz. 512 MB DDR2 RAM. Weight: less then 1 Kg!! Price: about 300 dollars… and in Italy? 299 Euros.
An interesting link: http://www.hwupgrade.it/articoli/portatili/1881/eee-pc-4g-un-notebook-asus-a-299-euro_index.html [IT]
Macbook Air is the world’s thinnest notebook!! It is, of course, beautiful and elegant. LED screen, 64 GB solid state disk! Built-in iSight camera, Intel Core 2 Duo processor,… Weight: 1,36 Kg and height: 1,94 cm!! Fantastic! The only limit? Price: from 1799 dollars… and in Italy? from 1699 Euro. It’s not fair! :.( I don’t add anything else, but I suggest you to watch this guided tour: http://www.apple.com/macbookair/ [EN]
Special thanks to Stefano & Ivan ;)
Thanks to all my university friends, a new fantastic touch of technology is living on my desk: Logitech MX Revolution
You can see infos and specs here: http://www.logitech.com/index.cfm/428/130&hub=1&cl=it,it. I received it for my birthday.
Thanks everyone!! :)
Today I bought a new fan to make my 2 Raptor HDs ready for hot summer :)
I think I paid it a lot: 21,90 Euros, but I’m very happy: I wanted an ultra silent fan and I have it! :) It is a: Noctua NF-S12
Here there are specifications:
Size: 120x120x25 mm
Bearing: SSO-Bearing
Blade Geometry: Straight-Blade-Design
Rotational Speed (+/- 10%): 1200 RPM
Rotational Speed with U.L.N.A. (+/- 10%): 600 RPM
Airflow: 81 m³/h
Airflow with U.L.N.A.: 41 m³/h
Acoustical Noise: 17 dB(A)
Acoustical Noise with U.L.N.A.: < 6* dB(A)
Input Power: 1,44 W
Input Current: 0,12 A
Voltage Range: 4-13 V
MTBF: > 150.000 h
Box contains:
1 Ultra-Low-Noise Adaptor (U.L.N.A.)
4 Vibration Compensators
1 3:4-Pin Adaptor
4 Fan Screws
Warranty: 6 years
*extrapolated values
I haven’t installed the U.L.N.A. because I want maximum airflow, but I think that with the adaptor it will become really inaudible!
Noctua official site: http://www.noctua.at/
Do you want to create a floppy disk with whom you can run memory test[*] on a pc? If the answer is “yes I do”, go on :)
You can download one of these 2 nice utilities from:
and follow instructions to create a floppy disk.
Or you can use your loved Ubuntu installed on your pc (that install memtest by default).
So, insert a formatted floppy on your floppy drive, open a shell and digit:
sudo dd if=/boot/memtest86+.bin of=/dev/fd0
Done! ;)
Remember to select “first boot from floppy drive” in your BIOS before to use memtest.
[*] A memory test is useful to understand if your pc’s ram work well or not.
Here it is a collection of informations about speed on wires or air applied on PCs.
It comes from my curiosity that sometimes asked “is it better USB 2 or Firewire? Sata or SCSI or SAS?”
Pay attention because these speed is maximum bus speed, but in reality it depends on physical devices limits.
Note: Mb/s means Mega bits per second, MB/s means Mega Bytes per second, Gb/s means Giga bits per second.
Di seguito c’è un insieme di informazioni sulle velocità dei dati che viaggiano su cavo o in aria.
E’ partito tutto dalla curiosità di sapere ad esempio “meglio USB 2 o Firewire? Sata o SCSI o SAS?”
Fate attenzione perché queste velocità sono le massime velocità del bus, ma in realtà tutto dipende dal limite fisico dei device.
Nota: Mb/s sta per Mega bits al secondo, MB/s significa Mega Bytes al secondo, Gb/s sta per Giga bits al secondo.
[Maximum 5 hubs connected together, maximum 127 peripherals. Maximum cable length: 50 m]
[Maximum cable length: 4.5 m or 72 m only with regenerative devices]
[Maximum category 5 cable length: 100 m]
1.5 Gb/s, 3.0 Gb/s, 6.0 Gb/s
Implementation/network-dependent.
1 Gb/s, 2 Gb/s, 4 Gb/s, 8 Gb/s
10 Mb/s – 1.25 MB/s, 100 Mb/s – 12.5 MB/s, 1 Gb/s – 125 MB/s, 10 Gb/s – 1250 MB/s
2.4 kbit/s to 16 Mbit/s, 100 Mbit/s data rates are under development.
Please inform me about mistakes.
Per favore, informatemi di eventuali errori.