JPS63177243A - Compact computer - Google Patents

Abstract

PURPOSE:To shorten the time from the start of a computer to the start of its processing by storing previously the programs, etc., of a CPU stored in an external memory medium into a semiconductor memory and then storing the programs, etc., of said semiconductor memory into a main memory. CONSTITUTION:When a power supply is switched on, a CPU 2 is actuated by an initial start program of an initial start program memory 4. The programs and various data of the CPU 2 stored in a semiconductor memory 6 are shifted to a semiconductor main memory 3 by said initial start. The programs, etc., of the CPU 2 stored in an external memory medium like a magnetic disk 5 or a magnetic tape, etc., are previously stored in a semiconductor memory having a high reading speed and then shifted to the main memory 3 at the time of the start. Thus it is possible to shorten the time needed for the start of a computer through the start of its processing.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a small computer that operates using programs and various data stored on a magnetic disk, magnetic tape, or the like.

Conventional technology Conventionally, programs and data for this type of small computer are stored in non-volatile external storage media such as magnetic disks and magnetic tapes, and small computers read the programs, etc. from this external storage medium at the time of initial startup. The program is written into the internal main storage device and operates according to the written program.

Problems to be Solved by the Invention However, in the above-mentioned conventional small computers, the read speed from external storage media such as magnetic disks and magnetic tapes is slow, so it takes a long time to write to the internal main storage device, and after startup There is a problem in that it takes a long time to start processing.

SUMMARY OF THE INVENTION In view of the above problems, it is an object of the present invention to provide a small-sized computer that can shorten the time from startup to start of processing.

Means for Solving the Problems In order to solve the above-mentioned problems, the present invention stores in advance a program for the central processing unit stored in an external storage medium in a semiconductor storage device, and the central processing unit executes the program at the time of startup. A special feature of the present invention is characterized in that the program, etc. of the semiconductor storage device is stored in the main memory device.With the above structure, the program, etc. of the central processing unit is stored from the semiconductor storage device to the main memory device at the time of startup. , the time from startup to start of processing can be shortened.

EXAMPLES Hereinafter, the present invention will be described in detail with reference to the drawings. The diagram is
1 is a schematic block diagram showing an embodiment of a small computer according to the present invention.

In the figure, 1 is a small computer main body, and this small computer main body l is a central processing unit (1) that operates as described later.
It has a CPU ) 2, a semiconductor main memory device 3 in which programs and various data for the CPU 2 are stored, and a read-only initial startup program storage device 4 in which an initial startup program is stored.

Reference numeral 5 denotes a magnetic disk device in which the programs of the CPU 2 and various data are stored, and 6 is a semiconductor storage device backed up by a battery 7 and in which the programs and various data of the magnetic disk device 5 are stored in advance. Therefore, the data in the semiconductor storage device 6 is retained even when the power of the small computer main body 1 is turned off.

Next, the operation of the embodiment according to the above configuration will be explained.

When the power is turned on to the small computer main body, the CPU 2 operates according to the initial startup program stored in the initial startup program storage device 4, and the CPU 2 stored in the semiconductor storage device 6 operates.
The program and various data are read out and stored in the semiconductor main memory device 3. The CPU 2 operates based on programs and various data stored in the semiconductor main memory device 3.

Therefore, since the programs and various data of the CPU 2 are stored from the semiconductor memory device 6 to the semiconductor main memory device 3 at the time of startup, the time from startup to the start of processing can be shortened.

As described in detail, the present invention stores programs for the central processing unit in advance in a semiconductor storage device, which are not stored in an external storage medium such as a magnetic disk or a magnetic tape, and the central processing unit Since the program of the semiconductor memory device is configured to be stored in the main memory, the time from startup to start of processing can be shortened.

[Brief explanation of the drawing]

The figure is a schematic block diagram showing an embodiment of a small computer according to the present invention. 2... Central processing unit (CPU), 3... Semiconductor main storage device, 4... Initial startup program storage device, 5.
...Magnetic disk device, 6...Semiconductor storage device, 7.
··battery.

Claims (1)

[Claims] A central processing unit, a main storage device in which programs and the like are stored in order for the central processing unit to operate, and a semiconductor in which the programs and the like are stored in advance from an external storage medium in which the programs and the like of the central processing unit are stored. A small computer comprising: a storage device; and a storage device storing an initial startup program for storing a program, etc. of the semiconductor storage device in the main storage device when the central processing unit starts up.