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  2. Table of keyboard shortcuts - Wikipedia

    en.wikipedia.org/wiki/Table_of_keyboard_shortcuts

    Allow user to press shortcuts one key at a time: ⇧ Shift press 5 times: ⇧ Shift 5 times [28] Hear beep when -lock key pressed: Numlock hold 5 seconds: Stop/slow repeating characters when key is pressed: Right Shift hold 8 seconds: ⇧ Shift hold for 8 seconds [29] [30] [31] Inverse (Reverse Colors) Mode Left Alt+Left Shift+PrtScn: ⌘ Cmd+ ...

  3. System request - Wikipedia

    en.wikipedia.org/wiki/System_request

    A 104-key PC US English keyboard layout with System request circled. System Request (SysRq or Sys Req) is a key on personal computer keyboards that has no standard use. Introduced by IBM with the PC/AT, it was intended to be available as a special key to directly invoke low-level operating system functions with no possibility of conflicting with any existing software.

  4. Power-on self-test - Wikipedia

    en.wikipedia.org/wiki/Power-on_self-test

    No beep: Power supply, system board problem, disconnected CPU, or disconnected speaker Continuous beep: Power supply, system board, RAM or keyboard problem Repeating short beeps: Power supply, system board or keyboard problem 1 long, 1 short beep: System board problem 1 long, 2 short beeps: Display adapter problem (MDA, CGA) 1 long, 3 short beeps

  5. Model M keyboard - Wikipedia

    en.wikipedia.org/wiki/Model_M_keyboard

    Made for IBM RS/6000 system, w/internal speaker for system "beeps". R Ctrl key says Ctrl/Act: 1394542 Buckling spring 102 Yes Yes PS/2 Yes Gray or blue on oval, ULC IBM UK, Lexmark UK 1991-95? IBM Corp. 1985; Lexmark International, Inc. 1985 German QWERTZ layout; made for IBM RS/6000 system, w/internal speaker for system "beeps" 1394545 ...

  6. Download and install System Mechanic - AOL Help

    help.aol.com/articles/how-do-i-download-and...

    Click Download now | wait for the installation file to download. Click the file to open. System Mechanic will begind to download. When the download finished the install wizard will show up. Click Yes. Click Install. After the installation you will be asked for your email address for activation. Enter the email address used for purchasing System ...

  7. Sinclair BASIC - Wikipedia

    en.wikipedia.org/wiki/Sinclair_BASIC

    If the system was in "L" mode, one could return to "K" by pressing the shift key – the systems did not initially support lowercase text, so the shift was not otherwise needed. The keywords below the keys required a second keystroke, ⇧ Shift + NEW LINE , which put the editor into "function mode", changing the cursor to an "F".

  8. System Mechanic Software | 30-Day Free* Trial | AOL Products

    www.aol.com/products/utilities/system-mechanic

    Download System Mechanic to help repair and speed up your slow PC. Try it free* for 30 days now.

  9. Keyboard technology - Wikipedia

    en.wikipedia.org/wiki/Keyboard_technology

    A common test for whether the computer has crashed is pressing the "caps lock" key. The keyboard sends the key code to the keyboard driver running in the main computer; if the main computer is operating, it commands the light to turn on. All the other indicator lights work in a similar way.