SU506910A1 - Device for recording information - Google Patents

Description

one

The invention relates to computational technology.

Storage devices are known that contain an akolitel on a magnetic tape, the numerical inputs of which are connected to the outputs of the buffer storage unit, and the control input is the first output of the control unit, the second and third outputs of which are connected respectively to the input of the control of the buffer memory and the input the prohibition of the valve block, and the input with the first output of the synchronization block, and the delay block.

The described device differs in that, in order to improve speed, o contains counters of numbers, readings and flooding, the outputs of the valve block are connected to the first inputs of the counters of numbers and writing, and through the delay block the write inputs of the buffer storage block, the first address the inputs of which are connected to the outputs of the readout counter connected by a counting input to the second output of the synchronization unit, the input of which is connected to the magnetic casting drive, and the third output to the second input of the write counter, output to which The second input is connected to the second address inputs of the buffer memory block, and the third input is connected to the third output of the control unit, the fourth output of which is connected to a counter of numbers.

The drawing shows a diagram of the described device.

It contains a buffer storage unit 1, a magnetic tape drive 2, a write counter, a read counter 4, a synchronization unit 5, a control unit 6, a number counter 7, a valve unit 8, and a delay unit 9.

In mode, the start contents of the counters 3, 4, and 7 are preassigned to the value "1," O, and "O, and the contents of the buffer cells of the other unit are canceled. In the case when the information for a long time arrives (in the ready mode), the clock of the synchronization unit 5 of the control unit 6 performs a sequential ring interrogation of the memory cells of the buffer memory of unit 1, and the address of the read cell is one less than the address of the write cell . For this purpose, the first clock pulse from the synchronization unit 5, the readout counter 4 increases its value by one and is transferred to the "O" position, and the contents of the cell with the number corresponding to the number 4 is read from the buffer blocking unit. the same control block 6 is started by a clock pulse, which counters the number counter 7. If the contents of this counter is zero, then the output of the control block 6 is the resolution of issuing numbers from the buffer

Memory on the akolitel on a tapnit tape 2 not 1 post: they drink. The same clock pulse increases by one the contents of the record 3 counter (translates it into Position “1), connecting the input of the device to the cell of the buffer storage unit 1 with the number corresponding to the number on the counter 3. According to the next clock pulse of the synchronization block 5 to. the count of counters 4 and 3 is added one at a time, thereby providing access (writing and reading) to the lamy cells with numbers greater than the previous ones, and so on.

Thus, in the mode of non-receipt of ioformatization, the buffer storage unit 1 is ready for intermediate registration of a number or array of numbers that can be fed at any time to the device input.

In the registration mode, in which the device receives individual numbers or arrays of numbers following with a frequency that is high relative to the sampling clock frequency, each of them passes through the valve block 8 and generates a start pulse, increasing the “counter content: record 3 to the number counter” 7. Then, each of the numbers through the delay block 9, which provides the time required for the counter 3 to form the address of the number received at the input of the device, is written into the cell of the buffer storage unit 1 with a number corresponding to The current value of the contents of Record Counter 3.

Thus, a single number or the first number of the array arriving at the input of the device is recorded in the cell of the buffer storage unit 1, the number of which is one more than the number of the recording cell in the non-arrival mode and the formation, and after the memory of the iBcex block 1 is stored in the memory, the contents the counter of numbers 7 is equal to the number of occupied memory cells (the contents of counter 3 are different from the contents of the counter of read circuit 4 by an amount equal to the number of block 1 stored in memory for temporary storage of numbers plus one). If the volume of the array of memorized numbers exceeds the volume of block 1 (low probability), then the counter 7 overflows and with the help of the control unit 6 closes the valve block 8, giving "a tape drive 2 sign of overflow to block 1, which is used later in processing in order to determine the boundaries of the undistorted entry of this array.

The output of numbers recorded by the buffer storage unit 1 for recording in the drive on the magnetic tape 2 is carried out independently of their arrival in the buffer storage unit 1 by the next clock pulse of the synchronization unit 5, which, as in the device operation mode described above, adds one to the current values of the counters 4 and 3 and the number counter 7 that sends through the control unit 6; if the contents of the counter 7 are different from zero (i.e. there are numbers in the block 1), the control unit 6 permits the selection of the number from the memory cell n Omer, equal to the contents of the counter 3 (the first number of the array). Simultaneously with reading the number of

cells using control unit 6, the contents of counters 3 and 7 are reduced to a unit.

Thus, after reading 1 number from the buffer storage unit of 1, the contents of the number counter 7 decrease, the content of the read counter 4 increases by one and the contents of the write counter 3 remain unchanged (the number of the memory cell in which the last number is stored

array entering the device). The delivery of numbers from the buffer storage unit 1 to the drive 2 on a magnetic tape, carried out according to clock pulses, occurs before that, inoKa the contents of the number counter 7 will not become zero. This corresponds to the issue for writing to the drive 2 of all the numbers recorded in the buffer storage unit 1. At the same time, as in the mode of not receiving information, the contents of the counter 4

one less than the cell number (the contents of the counter 3), in which the next number can be written (input to the device.

OopiMyjia invention

A device for recording information that contains a tip on a magnetic tape, the numerical inputs of which are connected to the outputs of the buffer storage unit, and the control input to the first output of the control unit, the second and third outputs of which are connected respectively to the control input of the buffer storage unit and the inhibit input of the valve unit and the input is with the first output of the synchronization unit, and the delay unit, characterized in that, in order to increase the speed of the device, it contains counters of numbers, readings and writes, and m outputs valve block connected to the first inputs of counters and recording and numbers through the delay unit - to the inputs of the recording buffer memory unit, first address inputs connected to the outputs of the read counter connected

the second input to the second output of the synchronization unit, the input of which is connected to the tape drive, and the third output to the second input of the recording counter, the outputs of which are connected to the second address

the inputs of the buffer storage unit, and the third input - to the third output of the control unit, the fourth output of which is connected to a counter of numbers.