What is attn key on keyboard?
Attention interrupt key. This key allows you to interrupt or end a process that is taking place. If you are in a process you want to stop or see a message requesting information you do not have, you can press the attention interrupt key to end the process. The attention interrupt key often is labeled “PA1”.
What is the purpose of secure attention keys?
The secure attention key is designed to make login spoofing impossible, as the kernel will suspend any program, including those masquerading as the computer’s login process, before starting a trustable login operation.
Where do I find my PA1 key?
In addition to PF keys, you have a PA1 key on your keyboard that is assigned to WINDOW POP WM. The key can have different labels, depending on your terminal. If you do not have a key labeled PA1, ask your system administrator to show you the equivalent key.
What is Application refresh key in mainframe?
ThePA2 key is used to refresh the screen within ISPF. The CLEAR key is used to clear the screen; however, within ISPF, it is usually necessary to use the PA2 key immediately after using the CLEAR key. Back to top.
Does Control-Alt-Delete still work?
Indeed, the Ctrl+Alt+Del sequence makes certain tasks on your computer a lot easier. However, this function does not work all the time. If you find that this keyboard combination does not work, do not worry. Several Windows users have reported it.
What is PA1 key in TSO?
These were called Program Action keys or PA keys. In practice, only PA1 is still widely used and it functions as a break key for TSO. In TSO terminology, this is an attention interrupt. That is, pressing the PA1 key will end the current task.
What ISPF key in mainframe?
Program function (PF) keys represent a command or a series of commands. Keyboards can have 12 or 24 PF keys, each one labeled with its number as “PF1” or “F1”. Generally the PF keys are preset to default values, but you can change those values. For more information about PF keys, see Using PF keys.
What is PA1 in mainframe?
PA1 is a very important key for TSO users and every user should know how to find it on the keyboard. Back in the early days, the “real” 3270 terminals had keys labeled PA1, PA2, and PA3. These were called Program Action keys or PA keys. In practice, only PA1 is still widely used and it functions as a break key for TSO.