Digital logic interview questions

CHDK for Canon SX120 IS Camera ( Canon Hack Development Kit )

http://digitalpbk.com/hardware/canon-sx120-chdk-camera-canon-hack-development-kit Digital Camera. Features and interfaces with Digic 4 Processor which are not enabled by default in the firmware is enabled by using CHDK. Compared to other camera like Sony DSC H20, H50 or Nikon L Series, the one thing makes Canon cameras interesting is CHDK which has scripting support in it. For people who are interested in development, firmware and scripting, this is an exciting feature. CHDK allows you to have much more features in your camera than the normal ones, For Eg, CHDK can be used ...

ARP Spoofing or IP Masquerade

http://digitalpbk.blogspot.com/2009/02/arp-spoofin-ip-masquerade.html and further packets to that IP is send to the machine with the MAC address. Now the inherent flaw in the protocol is that, there is no mechanism to verify that the IP address corresponds to the MAC address and a forged ARP reply updates the ARP cache. So if a forged reply comes for an IP address and MAC pair, the ARP table gets updated. No questions asked. Thus any machine in the network can act as if its another machine and hijack all the information flowing. This is called ARP spoofing or IP ...

Sony Vaio CW VPCCW26FG EDID (Extended display identification data)

http://digitalpbk.com/hardware/sony-vaio-cw-vpccw26fg-edid-extended-display-identification-data supported by the display, display size, luminance data and (for digital displays only) pixel mapping data. The Sony Vaio CW VPCCW26FG EDID is as shown below : 00 FF FF FF FF FF FF 00 4D D9 FA 06 00 00 00 00 2D 0C 01 03 90 1F 11 00 EA A8 E0 99 57 4B 92 25 1C 50 54 00 00 00 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 40 38 40 F6 63 84 13 30 52 52 66 50 36 AE 10 00 00 18 00 00 00 FC 00 4E 76 69 64 69 61 20 44 65 66 61 75 6C 00 00 00 FC 00 74 20 46 6C 61 74 20 50 61 6E 65 6C 00 00 00 00 FD 00 00 3D ...

Compare Canon Powershot SX120IS vs Canon SX130IS (New)

http://digitalpbk.com/canon-sx-series/compare-canon-sx120is-vs-canon-sx130is-new Total Pixels Approx. 12.1 Million pixels Approx 10.0 Million pixels Effective ISO Auto, ISO 80 / 100 / 200 / 400 / 800 / 1600 Auto, ISO 80/ 100/ 200/ 400/ 800/ 1600 Max. Resolution (still images) Large: 4000 x 3000, Widescreen: 4000 x 2248 Large:3648x2736; Widescreen:3648x2048 JPEG Compression Mode (Still Image) Not Applicable Not Applicable Optical Zoom / Digital Zoom Still images / Movies ...

Change Network adapter MAC address on Windows 7

http://digitalpbk.com/windows/change-network-adapter-mac-address-windows-7 be there is a collision with one of the other devices on the network. Try putting your name as MAC Address If your name just contains letters from A-F (very unlikely), you can put your name as MAC Address, or just try to make one as close as to your name. 0D-16-17-A4-9B-30 Does it look like DigitalPBK ? :D Screencast of the above steps to change windows 7 LAN mac address VID-33025293 Windows Software ...

Changing the default Boot OS in GRUB on Ubuntu 9.10

http://digitalpbk.com/ubuntu-grub/changing-default-boot-os-grub-ubuntu-910 memtest86+ image: /boot/memtest86+.bin Found Microsoft Windows XP Home Edition on /dev/sda1 done Reboot the system to verify your changes. Happy Booting ;) Note: Although I found a built in command grub-set-default, It did not seem to do the job. On /etc/grub.d Directory you can see many files named in the format XX_...where XX is a 2 digit number. The ones starting with 0 are not listed. Rest is starting from 1X, 2X, 3X etc. 1X_ would be your linux operating system2X_ would be usually ...

8086 Assembly Language Program to find the factorial upto 255!

http://digitalpbk.blogspot.com/2008/11/masm-assembly-factorial-program-big.html 34020262992581378423147276636643647155396305352541105541439434840109915068285430675068591638581980604162940383356586739198268782104924614076605793562865241982176207428620969776803149467431386807972438247689158656000000000000000000000000000000000000000000000000000000000000000for the Faint HeartedThe program calculates and computes big numbers by simulating the traditional way of multiplication and division of numbers. Hence it can do this upto any number of digits as much as the memory can hold. In this example, I have used 512 digited numbers, which is more than enough for holding 255!.The key parts of the following program is bignum_mul and bignum_add macro which simulates the traditional method of multiplying and adding numbers (not using any ...

HTTP 1.1 Response Status Codes

http://digitalpbk.blogspot.com/2007/04/http-11-response-status-codes.html HTTP 1.1 Response Status Codes IntroFor each request a client sends to the server, the web server returns a 3 digit HTTP status code indicating the server's response. Eg:HTTP/1.1 404 Not FoundHere is the list of codes that the server sends and a brief description of the code.The status response codes are grouped as : 100 - 199 : Informational Status CodesProvides information to the Client that the server is starting to fulfill the request.100 Continue : Server says "Ready to receive ...

How to make Windows Media Player Skins

http://digitalpbk.blogspot.com/2006/12/how-to-make-windows-media-player-skins.html , (digitalpbk.wms).Paste the following code with suitable substitutionsShow/Hide Codetitle="DigitalPbk"author="Arun P"copyright="(c)2006 http://digitalpbk.blogspot.com . All rights reserved."version="1.0">Save the file. Now we have made a base for our skin. Check out if you have done it right, by taking the WMP Skin chooser. Look for the skin with the name you have given (digitalpbk), and click it. Depending on the version of WMP you are using you will see a white ...

Orkut Perl Script - Login, Scrapper and more

http://digitalpbk.blogspot.com/2007/06/orkut-mass-scrapper-scrap-all-friends.html