QSAM is used both for devices that are naturally sequential, such as punched card readers and punches and line printers, and for data on devices that could also be addressed directly, such as magnetic disks.
12.
The "'2922-3 Terminal Card Reader ( RPQ 810565 ) "'was a repackaged 2501, an optical punched card reader for 80-column cards with a rated speed of 500 cards per minute.
13.
The last eight positions in the rack were used for I / O devices operated by program control, such as the console Teletype, punched paper tape and punched card reader and punch, line printer, display, operator's panel, and the real time clock.
14.
The GEC 2050 was commonly used as a Remote Job Entry station, supporting a punched card reader, line printer, system console, and a data link to a remote mainframe computer system, and GEC Computers sold a complete RJE package including the system, peripherals, and RJE software.
15.
Upon disembarkation in Genoa, the machine was declared with customs as an " electrical appliance ", as the only computer machine in the taxonomy of goods used at the time was a " punchcard machine ", but a punched card reader was not supplied with the computer, so it didn't fit the categorisation.
16.
The " Processor " is an independent CPU ( with a different instruction set from the " Computer " s ) and provides control for 12 to 24 magnetic drum storage units, four to forty UNISERVO II tape drives, two Electronic page recorders, one or two high-speed printers, and a high-speed punched card reader.
17.
In these installations the big computer ( e . g ., a UNIVAC III ) did all of its input-output on magnetic tapes and the 1050 was used to format input data from other peripherals ( e . g ., punched card readers ) on the tapes and transfer output data from the tapes to other peripherals ( e . g ., punched card punches or the lineprinter ).
18.
ASP required the purchase of an additional computer to manage input and output of the hosts running the job workload, which was economically justified by the high cost of standalone byte-multiplexor channels needed to drive printers and punched card reader devices : the 360 / 50 and smaller systems had a built-in byte multiplexor channel, whereas the faster 360 / 65 and larger systems required a relatively expensive standalone unit.
19.
A typical hardware configuration consisted of a panel with toggle switches and lights to enter the boot loader, and a Teletype writer to input operating system commands, a punched card reader that gravity feed the cards ( they dropped into the read station, and were ejected and turned 180 degrees and then placed in the exit hopper ), 2 655 disc drives, and a printer that printed about 600 lines per minutes.
20.
The first generation electronic systems were quirky devices with cantankerous punched card readers for loading zeroize " button that erases classified information including keys and perhaps the encryption algorithms . 21st century systems often contain all the sensitive cryptographic functions on a single, tamper-resistant integrated circuit that supports multiple algorithms and allows over-the-air or network re keying, so that a single hand-held field radio, such as the AN / PRC-148 or AN / PRC-152, can interoperate with most current NSA cryptosystems.
