Showing posts with label HARDWARE. Show all posts
Showing posts with label HARDWARE. Show all posts

Friday, 19 October 2012

Clean Your RAM Using Notepad



How To Clean Your RAM Using Notepad

without using any software





>First open notepad

>Type FreeMem=Space(10240000000)

>Save it as CLEANER.VBS in any location you like.

>You can edit the code and write 512 instead of 1024 if you own a 512mb RAM or change to anything you like.

>Then run it !

Friday, 12 October 2012

COMPUTER QUIZ

COMPUTER QUIZ
(To see correct answers, move mouse over options, answer will be highlighted)
1. Which of the following communication mode supports data transmission in
    both directions at the same time?   
  
    a) Simplex
    b) Duplex
    c) Half simplex
    d) Full duplex
    e) Multiplex

2. Which of the following transmission techniques let computer to
    alternatively send and receive data?

    a) Duplex
    b) Simplex
    c) Half duplex
    d) Full duplex
    e) None of above

3.  Modulation is the process of :
     a) Echoing every character that is received
     b) Converting digital signals to analog signals
     c) Converting analog signals to digital signals
     d) Sending a file from one computer to another computer
     e) None of above

4. A modem performs-
    a) Modulation
    b) Demodulation
    c) Data compression
    d) Both (a) & (b) 
    e) All (a), (b) & (c)

5. Which of the following keyboard format is most commonly used?
    a) TWRITER
    b) SPLITTER
    c) QWERTY
    d) Dvorak
    e) None of the above

6. The function of key F4 in a word processing application is -
    a) to repeat the last action
    b) to open a saved document
    c) to delete the highlighted text
    d) to open context menu of highlighted text
    e) None of above

7. Laser printer is an example of -
    a) Impact printer
    b) Inkjet printer
    c) Non-Impact printer
    d) Dot-matrix printer
    e) None of above

8. which of the following is a term related with scanners?
    a) Laser
    b) TWAIN
    c) QWERTY
    d) Media
    e) Cartridge

9. The resolution of a monitor depends on:
    a) Dot pitch of the monitor
    b) Number of bits representing a pixel
    c) Number of pixels that can be displayed
    d) Both (a) & (b)
    e) All (a), (b) & (c)

10. What does the term ISO stands for?
    a) Information System Output
    b) International Standards Organization
    c) International Systems organization
    d) Integrated Services Organization
    e) None of above

Sunday, 16 September 2012

ONLINE EXAM

Sunday, 2 September 2012

BOOT.INI


Windows (specifically Ntldr) uses the Boot.ini file to determine which operating system options to display when the Startup program is running. By default, Boot.ini is not flagged as a read-only system file and generally does not require any manual modification.

If you must change the contents of this file, use the System tool in Control Panel:
  1. Click Start button, click Control Panel, and then double-click System.
  2. Click the Advanced tab, and then click Settings under Startup and Recovery.
Typically, the Boot.ini file contains the following data:
[boot loader]
timeout=30
default=scsi(0)disk(0)rdisk(0)partition(1)\winnt
[operating systems]
scsi(0)disk(0)rdisk(0)partition(1)\winnt = "Windows NT" /NODEBUG C:\ = "Previous Operating System on C:\"
The following list describes the meaning of the data in the Boot.ini file:
  • The "timeout" variable specifies how long Windows waits before choosing the default operating system.
  • The "default" variable specifies the default operating system.
  • The term "scsi(0)" means that the primary controller (that is frequently the only controller) is responsible for the device. If there are two SCSI controllers, and the disk is associated with the second controller, the controller is named "scsi(1)".

    If the system uses IDE, enhanced IDE (EIDE), or Enhanced Small Device Interface (ESDI) drives, or if the system uses a SCSI adapter that does not have a built-in BIOS, replace "scsi" with "multi".
  • The term "disk(0)" refers to the SCSI logical unit (LUN) to use. This may be a separate disk, but most SCSI setups have only one LUN for each SCSI ID.
  • The term "rdisk(0)" refers to physical disk 1.
  • The term "partition(1)" is the partition on the first drive in the computer. If there are two partitions, partition C is partition(1) and partition D is partition(2).
  • A multi-boot parameter calls for checking the Winnt folder to start from a specified SCSI controller's disk and partition.
  • "/NODEBUG" specifies that no debugging information is being monitored. Debugging information is useful only for developers.
  • You can add the /SOS option to display driver names while the drivers are being loaded. By default, the OS Loader screen only shows progress dots.
  • "Previous Operating System on C:\" implies that the "previous operating system" is MS-DOS, because "C:\" is an MS-DOS path.

NTLDR


NTLDR 

(abbreviation of NT loader) is the boot loader for all releases ofWindows NT operating system up to and including Windows XP andWindows Server 2003. NTLDR is typically run from the primary hard disk drive, but it can also run from portable storage devices such as aCD-ROM, USB flash drive, or floppy disk. NTLDR can also load a non NT-based operating system given the appropriate boot sector in a file.
NTLDR requires, at the minimum, the following two files to be on thesystem volume:
  • ntldr, the main boot loader itself
  • NTDETECT.COM, required for booting an NT-based OS, detects basic hardware information needed for successful boot
An additional important file is boot.ini, which contains boot configuration (if missing, NTLDR will default to \Windows on the first partition of the first hard drive).
NTLDR is launched by the volume boot record of system partition, which is typically written to the disk by the Windows FORMAT or SYScommand.

Sunday, 29 July 2012

Sysinternals Suite


Sys internals Suite



The Sysinternals Troubleshooting Utilities have been rolled up into a single Suite of tools. This file contains the individual troubleshooting tools and help files. It does not contain non-troubleshooting tools like the BSOD Screen Saver or NotMyFault.
The Suite is a bundling of the following selected Sysinternals Utilities:
You can also click on the below links to try different.
dn

Sunday, 22 July 2012

List of F1-F9 Key Cmds 4 cmd prompt


List of F1-F9 Key Cmds 4 cmd prompt


List of F1-F9 Key Commands for the Command Prompt
F1 / right arrow: Repeats the letters of the last command line, one by one.
F2: Displays a dialog asking user to "enter the char to copy up to" of the last command line
F3: Repeats the last command line
F4: Displays a dialog asking user to "enter the char to delete up to" of the last command line
F5: Goes back one command line
F6: Enters the traditional CTRL+Z (^z)
F7: Displays a menu with the command line history
F8: Cycles back through previous command lines (beginning with most recent)
F9: Displays a dialog asking user to enter a command number, where 0 is for first command line entered.
Alt+Enter: toggle full Screen mode.
up/down: scroll thru/repeat previous entries
Esc: delete line
Note: The buffer allows a maximum of 50 command lines. After this number is reached, the first line will be replaced in sequence.
Helpful accessibility keyboard shortcuts
Switch FilterKeys on and off. Right SHIFT for eight seconds
Switch High Contrast on and off. Left ALT +left SHIFT +PRINT SCREEN
Switch MouseKeys on and off. Left ALT +left SHIFT +NUM LOCK
Switch StickyKeys on and off. SHIFT five times
Switch ToggleKeys on and off. NUM LOCK for five seconds

Gmail Shortcuts


Gmail
Note: Must have "keyboard shortcuts" on in settings.
C: Compose new message.
Shift + C: Open new window to compose new message.
Slash (/): Switch focus to search box.
K: Switch focus to the next most recent email. Enter or "O" opens focused email.
J: Switch focus to the next oldest email.
N: Switch focus to the next message in the "conversation." Enter or "O" expands/collapses messages.
P: Switch focus to the previous message.
U: Takes you back to the inbox and checks for new mail.
Y: Various actions depending on current view:
Has no effect in "Sent" and "All Mail" views.
Inbox: Archive email or message.
Starred: Unstar email or message.
Spam: Unmark as spam and move back to "Inbox."
Trash: Move back to "Inbox."
Any label: Remove the label.
X: "Check" an email. Various actions can be performed against all checked emails.
S: "Star" an email. Identical to the more familiar term, "flagging."
R: Reply to the email.
A: Reply to all recipients of the email.
F: Forward an email.
Shift + R: Reply to the email in a new window.
Shift + A: Reply to all recipients of the email in a new window.
Shift + F: Forward an email in a new window.
Shift + 1 (!): Mark an email as spam and remove it from the inbox.
G then I: Switch to "Inbox" view.
G then S: Switch to "Starred" view.
G then A: Switch to "All Mail" view.
G then C: Switch to "Contacts" view.
G then S: Switch to "Drafts" view.

Mozilla Firefox Shortcuts


Mozilla Firefox Shortcuts
Ctrl + Tab or Ctrl + PageDown: Cycle through tabs.
Ctrl + Shift + Tab or Ctrl + PageUp: Cycle through tabs in reverse.
Ctrl + (1-9): Switch to tab corresponding to number.
Ctrl + N: New window.
Ctrl + T: New tab.
Ctrl + L or Alt + D or F6: Switch focus to location bar.
Ctrl + Enter: Open location in new tab.
Shift + Enter: Open location in new window.
Ctrl + K or Ctrl + E: Switch focus to search bar.
Ctrl + O: Open a local file.
Ctrl + W: Close tab, or window if there's only one tab open.
Ctrl + Shift + W: Close window.
Ctrl + S: Save page as a local file.
Ctrl + P: Print page.
Ctrl + F or F3: Open find toolbar.
Ctrl + G or F3: Find next...
Ctrl + Shift + G or Shift + F3: Find previous...
Ctrl + B or Ctrl + I: Open Bookmarks sidebar.
Ctrl + H: Open History sidebar.
Escape: Stop loading page.
Ctrl + R or F5: Reload current page.
Ctrl + Shift + R or Ctrl + F5: Reload current page; bypass cache.
Ctrl + U: View page source.
Ctrl + D: Bookmark current page.
Ctrl + NumpadPlus or Ctrl + Equals (+/=): Increase text size.
Ctrl + NumpadMinus or Ctrl + Minus: Decrease text size.
Ctrl + Numpad0 or Ctrl + 0: Set text size to default.
Alt + Left or Backspace: Back.
Alt + Right or Shift + Backspace: Forward.
Alt + Home: Open home page.
Ctrl + M: Open new message in integrated mail client.
Ctrl + J: Open Downloads dialog.
F6: Switch to next frame. You must have selected something on the page already, e.g. by use of Tab.
Shift + F6: Switch to previous frame.
Apostrophe ('): Find link as you type.
Slash (/): Find text as you type.

Remote Desktop Connection Navigation
Ctrl + Alt + End: Open the NT Security dialog.
Alt + PageUp: Switch between programs.
Alt + PageDown: Switch between programs in reverse.
Alt + Insert: Cycle through the programs in most recently used order.
Alt + Home: Display start menu.
Ctrl + Alt + Break: Switch the client computer between a window and a full screen.
Alt + Delete: Display the Windows menu.
Ctrl + Alt + NumpadMinus: Place a snapshot of the entire client window area on theTerminal server clipboard and provide the same functionality as pressing Alt + PrintScreen on a local computer.
Ctrl + Alt + NumpadPlus: Place a snapshot of the active window in the client on theTerminal server clipboard and provide the same functionality as pressing PrintScreen on a local computer.

Accessibility


Accessibility
Right Shift for eight seconds: Toggle FilterKeys on and off. FilterKeys must be enabled.
Left Alt + Left Shift + PrintScreen: Toggle High Contrast on and off. High Contrast must be enabled.
Left Alt + Left Shift + NumLock: Toggle MouseKeys on and off. MouseKeys must be enabled.
NumLock for five seconds: Toggle ToggleKeys on and off. ToggleKeys must be enabled.
Shift five times: Toggle StickyKeys on and off. StickyKeys must be enabled.
6.) Microsoft Natural Keyboard with IntelliType Software Installed
Win + L: Log off Windows.
Win + P: Open Print Manager.
Win + C: Open control panel.
Win + V: Open clipboard.
Win + K: Open keyboard properties.
Win + I: Open mouse properties.
Win + A: Open Accessibility properties.
Win + Space: Displays the list of Microsoft IntelliType shortcut keys.
Win + S: Toggle CapsLock on and off.

Generic
Ctrl + C or Ctrl + Insert: Copy.
Ctrl + X or Shift + Delete: Cut.
Ctrl + V or Shift + Insert: Paste/Move.
Ctrl + N: New... File, Tab, Entry, etc.
Ctrl + S: Save.
Ctrl + O: Open...
Ctrl + P: Print.
Ctrl + Z: Undo.
Ctrl + A: Select all.
Ctrl + F: Find...
Ctrl+W : to close the current window
Ctrl + F4: Close tab or child window.
F1: Open help.
F11: Toggle full screen mode.
Alt or F10: Activate menu bar.
Alt + Space: Display system menu. Same as clicking the icon on the titlebar.
Escape: Remove focus from current control/menu, or close dialog box.
Generic Navigation
Tab: Forward one item.
Shift + Tab: Backward one item.
Ctrl + Tab: Cycle through tabs/child windows.
Ctrl + Shift + Tab: Cycle backwards through tabs/child windows.
Enter: If a button's selected, click it, otherwise, click default button.
Space: Toggle items such as radio buttons or checkboxes.
Alt + (Letter): Activate item corresponding to (Letter). (Letter) is the underlined letter on the item's name.
Ctrl + Left: Move cursor to the beginning of previous word.
Ctrl + Right: Move cursor to the beginning of next word.
Ctrl + Up: Move cursor to beginning of previous paragraph. This and all subsequent Up/Down hotkeys in this section have only been known to work in Rich Edit controls.
Ctrl + Down: Move cursor to beginning of next paragraph.
Shift + Left: Highlight one character to the left.
Shift + Right: Highlight one character to the right.
Shift + Up: Highlight from current cursor position, to one line up.
Shift + Down: Highlight from current cursor position, to one line down.
Ctrl + Shift + Left: Highlight to beginning of previous word.
Ctrl + Shift + Right: Highlight to beginning of next word.
Ctrl + Shift + Up: Highlight to beginning of previous paragraph.
Ctrl + Shift + Down: Highlight to beginning of next paragraph.
Home: Move cursor to top of a scrollable control.
End: Move cursor to bottom of a scrollable control.
Generic File Browser
Arrow Keys: Navigate.
Shift + Arrow Keys: Select multiple items.
Ctrl + Arrow Keys: Change focus without changing selection. "Focus" is the object that will run on Enter. Space toggles selection of the focused item.
(Letter): Select first found item that begins with (Letter).
BackSpace: Go up one level to the parent directory.
Alt + Left: Go back one folder.
Alt + Right: Go forward one folder.
Enter: Activate (Double-click) selected item(s).
Alt + Enter: View properties for selected item.
F2: Rename selected item(s).
Ctrl + NumpadPlus: In a Details view, resizes all columns to fit the longest item in each one.
Delete: Delete selected item(s).
Shift + Delete: Delete selected item(s); bypass Recycle Bin.
Ctrl while dragging item(s): Copy.
Ctrl + Shift while dragging item(s): Create shortcut(s).

In tree pane, if any:
Left: Collapse the current selection if expanded, or select the parent folder.
Right: Expand the current selection if collapsed, or select the first subfolder.
Numpad Asterisk: Expand currently selected directory and all subdirectories. No undo.
Numpad Plus: Expand currently selected directory.
Numpad Minus: Collapse currently selected directory.

Windows Hotkeys


Windows Hotkeys
Shift + F10 right-clicks.
Win + L (XP Only): Locks keyboard. Similar to Lock Workstation.
Win + F or F3: Open Find dialog. (All Files) F3 may not work in some applications which use F3 for their own find dialogs.
Win + Control + F: Open Find dialog. (Computers)
Win + U: Open Utility Manager.
Win + F1: Open Windows help.
Win + Pause: Open System Properties dialog.
Win + Tab: Cycle through taskbar buttons. Enter clicks, AppsKey or Shift + F10 right-clicks.
Win + Shift + Tab: Cycle through taskbar buttons in reverse.
Alt + Tab: Display Cool Switch. More commonly known as the AltTab dialog.
Alt + Shift + Tab: Display Cool Switch; go in reverse.
Alt + Escape: Send active window to the bottom of the z-order.
Alt + Shift + Escape: Activate the window at the bottom of the z-order.
Alt + F4: Close active window; or, if all windows are closed, open shutdown dialog.
Shift while a CD is loading: Bypass AutoPlay.
Shift while login: Bypass startup folder. Only those applications will be ignored which are in the startup folder, not those started from the registry (Microsoft\Windows\CurrentVersion\Run\)
Ctrl + Alt + Delete or Ctrl + Alt + NumpadDel (Both NumLock states): Invoke the Task Manager or NT Security dialog.
Ctrl + Shift + Escape (2000/XP ) or (Ctrl + Alt + NumpadDot) : Invoke the task manager. On earlier OSes, acts like Ctrl + Escape.
Print screen: Copy screenshot of current screen to clipboard.
Alt + Print screen: Copy screenshot of current active window to clipboard.
Ctrl + Alt + Down Arrow: Invert screen. Untested on OS's other than XP.
Ctrl + Alt + Up Arrow: Undo inversion.
Win + B : Move focus to systray icons.

Saturday, 21 July 2012

Make Windows XP Shutdown Faster than ever


Make Windows XP Shutdown Faster than ever

You can make your shut down process a bit faster by the following tweak.


Steps: (download the registry file)

1. This step is very important.
Export (right click > Export) the following keys and save it to a safer place.

HKEY CURRENT USER\Control Panel\Desktop
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control

2. Open Notepad, copy and paste the following to the Notepad.


Windows Registry Editor Version 5.00

[HKEY_CURRENT_USER\Control Panel\Desktop]
"AutoEndTasks"="1"
"HungAppTimeout"="1000"
"WaitToKillAppTimeout"="2000"

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control]
"WaitToKillServiceTimeout"="2000"

3. Save the file and close Notepad.

4. Change extension of the file from .txt (text file) to .reg (registry file).

5. Double click open this file and click Yes and the OK .

Monday, 18 June 2012

Convert Dynamic disk to Basic disk conversion


Convert Dynamic disk to Basic disk 


To change a dynamic disk back to a basic disk using the Windows interface
  1. Back up all volumes on the disk you want to convert from dynamic to basic.
  2. In Disk Management, right-click each volume on the dynamic disk you want to convert to a basic disk, and then click Delete Volume for each volume on the disk.
  3. When all volumes on the disk have been deleted, right-click the disk, and then click Convert to Basic Disk.

or You can also convert by commands


Convert Dynamic disk to Basic disk 

To change a dynamic disk back to a basic disk using a command line
  1. Back up all volumes on the disk you want to convert from dynamic to basic.
  2. Open a command prompt and type diskpart.
  3. At the DISKPART prompt, type list disk. Make note of the disk number you want to convert to basic.
  4. At the DISKPART prompt, type select disk <disknumber>.
  5. At the DISKPART prompt, type detail disk <disknumber>.
  6. For each volume on the disk, at the DISKPART prompt, type select volume= <volumenumber> and then type delete volume.
  7. At the DISKPART prompt, type select disk <disknumber>. Specify the disk number of the disk that you want to convert to a basic disk.
  8. At the DISKPART prompt, type convert basic.