JPS62120539A - System with trial function - Google Patents

Abstract

PURPOSE:To improve the operability of a system containing a trial function by preserving the information obtained before the execution of a trial command when the trial execution is designated and then displaying the process and result of the retried command. CONSTITUTION:A system bus 9 is connected with a CPU 1, a reset information memory area 4, a display device 6 like a CRT, etc., a keyboard 5 containing a specific key 5-1, the general input keys 5-2-5-n and an encoder 5-0, etc. Then the trial is designated with the operation of the key 5-1 when the trial command of the system is supplied. The information needed for the trial is stored in the area 4 when the command is supplied with the operation of the keys of the keyboard 5 or via a program. Then the process and the result of the execution of the command are displayed on a display device 6. The system is reset to the state set before the input of the command by means of the information stored in the area 4.

Description

[Detailed Description of the Invention] [Summary] This is a system that performs trials to check the execution results of commands when operating a computer, and is useful when the command parameters are unknown or when there are concerns about the execution results. , specifies a command trial, displays the execution progress and execution results of the tried command, and uses information saved before execution to restore the system to the pre-execution state and perform the trial.

[Industrial application field]

The present invention relates to a system for improving the operability of a computer system, and more specifically, when a command is specified to be tried, the present invention provides the operator with the execution details of the command and returns the state to the state before the command is executed. It concerns a system that can be restored.

As personal systems such as personal computers become more widespread, opportunities for people other than computer experts to operate computer systems are increasing. In general, those who are not proficient in operations often make mistakes in the method of inputting commands or specifying command parameters, and often do not understand the execution results of various commands. If a command is executed in such a state that the execution result is unknown, a situation may occur that is difficult for beginners to recover from, such as when a file is accidentally deleted. Furthermore, if a file is destroyed, it may be difficult for not only a beginner but also an expert to repair it. In addition, in today's world where various operating systems run on personal computers, and where different companies offer languages with different specifications, it is often necessary to operate unfamiliar systems.

Therefore, there is a need to provide a system that allows a user to try out a command when there is uncertainty about the command input method or execution result.

[Conventional technology]

In systems such as personal computers that are connected to input devices such as keyboards, output devices such as printers and displays, and input/output devices such as floppy disks, commands entered from the keyboard are analyzed by the CPU and various processing is performed. It is done.

If this command is for something like displaying a directory or driving a printer, even if it is entered incorrectly, an error message will be output and there will be no damage to the system. However, when inputting a command such as copying or deleting a file using a wild card, unexpected damage may be caused due to input errors in command parameters. In addition, system operation is often not guaranteed when commands are input that are not specified in the manual, making it extremely difficult to recover from file corruption. In such a case, there is a possibility of recovery for those who are familiar with the system, but there is nothing that beginners can do.

[Problem that the invention seeks to solve]

This conventional system only interprets and executes input commands, and does not have a function of returning to the state before input after attempting the command. Therefore, there were problems in operability and safety against erroneous operations.

The present invention was created with these points in mind, so by specifying a trial, the message display during execution,
The purpose of the present invention is to provide a system with a trial function that can return to the state before command execution after displaying the execution results.

[Means for solving problems]

FIG. 1 shows an explanatory diagram of the principle of the system with trial function of the present invention.

In the figure, 1 is a CPU, 2 is a program area in a memory connected to the same bus 9 as the CPUI, 3 is a work area, and 4 is a recovery information storage area.

The bus 9 also includes a keyboard 5 and a display device 6 such as a CRT.
, printer 7 and floppy disk 8 are connected. The keyboard 5 further includes keys indicated by 5-1 to 5-n and an encoder 5-0 for encoding key data and sending it to the bus 9. Note that these are generally configured as stand-alone devices.

[Effect]

When inputting a command by key operation from the keyboard 5 or via a program, information necessary for the trial is stored in the return information storage area 4, and after the command is executed, the execution progress and execution result are displayed. The information stored in the restoration information storage area 4 is displayed on the device 6 and used to restore the state to the state before the command was input. Storing the information necessary for a trial in the recovery information storage area 4 requires a storage area and processing time. At this time, a subcommand is input or a specific key 5-1 is operated to designate a trial, and the information is saved. In addition, when attempting a command that is difficult to recover, such as a direct write command to the disk, or when there is insufficient area to write recovery information, a message to that effect will be displayed on the display 6 or a beep will sound. The operator may be alerted by causing the warning to occur.

〔Example〕

FIG. 2 is a flowchart of an embodiment of the present invention. When a normal command is input in step 5ioo, processing corresponding to the input command is executed in step 5102, and this loop is repeated thereafter. When a command for specifying a trial is input, step 5101
The process then moves to step 5103, where information necessary for recovery is saved. Thereafter, after the command is executed in step 5102, if trial designation has been made in advance, steps 5104 to 51
The process moves to step 5105, where the system is returned to the state before execution in step 5102 based on the saved information while generating a soft copy or hard copy of the execution progress and execution result of the attempted command. finish.

〔Effect of the invention〕

As described above, according to the present invention, by specifying a trial, command execution progress and execution results can be
Since the system is returned to the state before the command was executed while causing authentication processing, the operability of the system is improved, and the system is free from the risk of file destruction due to erroneous operation, which is extremely useful in practical terms. .

[Brief explanation of drawings]

FIG. 1 is a diagram explaining the principle of the system with trial function of the present invention. FIG. 2 is a flow diagram of an embodiment of the present invention. In Figure 1, 1 is the CPU. 2 is the program area, 3 is the work area, 4 is a return information storage area; 5 is the keyboard, 5-1 to 5-n are keys, 5-0 is an encoder, 6 is a display device such as a CRT; 7 is a printer, 8 is a floppy disk, 9 is a bus.

Claims (1)

[Claims] A system for testing input commands in a computer, which stores information before the execution of the command to be tried when a trial is specified (4), as well as the execution progress and execution results of the attempted command. Display (6
) etc., the system disables the execution of the command and uses the saved information to return to the state before the command was executed.