In IBM mainframe operating systems, Execute Channel Program in Real Storage (EXCPVR) is a macro generating a system call, implemented as a Supervisor...
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channels can operate concurrently. A CPU typically designates a block of storage as, or sends, a relatively small channel program to the channel in order...
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method (BDAM) Virtual storage access method (VSAM) Execute Channel Program (EXCP) Execute Channel Program in Real Storage (EXCPVR) In MVS, starting with...
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OS/VS2 (SVS) (redirect from IBM Single Virtual Storage (SVS))
and translating status back into virtual. In addition, SVS provides the Execute Channel Program in Real Storage (EXCVR) SVC for privileged applications...
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IBM System/360 architecture (redirect from Load Program Status Word instruction)
attempts to start the channel program pointed to by the CAW, using the storage protection key in the CAW. TIO tests the status of a channel and device. It may...
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Z/Architecture (redirect from Expanded storage)
stores the BEAR in the doubleword at real address 272 (11016). After an Execute of a branch, the BEAR contains the address of the execute, not that of the...
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storage, drum, main memory, real storage, or internal memory. Meanwhile, slower persistent storage devices have been referred to as secondary storage...
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affect the "real response time observed" by the receiver. The TCSEC, also known as the Orange Book, requires analysis of covert storage channels to be classified...
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Interpreter (computing) (redirect from Interpreted programming language)
In computer science, an interpreter is a computer program that directly executes instructions written in a programming or scripting language, without requiring...
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IBM System/360 (category Computer-related introductions in 1964)
IBM 5100 portable computer, introduced in 1975, offered an option to execute the System/360's APL.SV programming language through a hardware emulator....
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Booting (redirect from Bootstrap program)
operator-specified device into main storage starting at real address zero. The second and third groups of eight bytes are treated as Channel Command Words (CCWs) to...
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fixing, serialization of related requests, VIO. Callers of Execute Channel Program must be in TCB mode. While IBM documents EXCPVR as being privileged,...
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bootloader is a compact 512-byte program that resides in the master boot record (MBR) is executed. Running in 16-bit real mode at address 0x7C00, it locates...
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Flash memory (redirect from Flash storage)
storage device, by taking advantage of random-access programming. Some devices offer read-while-write functionality so that code continues to execute...
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Count key data (category IBM storage devices)
transfer of data between the storage control and the device. Channel programs can be executed such that channel and storage control activities required...
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IBM Enterprise Systems Architecture (category Computer-related introductions in 1988)
support 32-bit arithmetic. Only byte-addressable real memory (Central Storage) and Virtual Storage addressing is limited to 31 bits, as is the case with...
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D-17B (category Military equipment introduced in the 1960s)
The contents of memory include 20 cold-storage channels of 128 sectors (words) each, a hot-storage channel of 128 sectors, four rapid access loops (U...
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Computer performance (section Channel capacity)
contexts, computer performance is estimated in terms of accuracy, efficiency and speed of executing computer program instructions. When it comes to high computer...
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Storage units 1–4 to central processing units (CPUs) and channel controllers (CCs). Control Register 9 contains the assignments of Processor Storage units...
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cylinder or block 0. The minidisk may be accessed using the same channel programs as the real disk. A minidisk that has been initialized with a CMS file system...
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IBM 1130 (section Disk Utility Program (DUP))
the name of the program to be run in columns 8 thru 12. If this is omitted, the program currently in Working Storage will be executed. If column 14 contains...
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Self-modifying code (redirect from Self-modifying program)
Instructions can be dynamically created in memory (or else overlaid over existing code in non-protected program storage), in a sequence equivalent to the ones...
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Virtual memory (redirect from Virtual storage)
storage, to provide a virtual address space that can exceed the capacity of real memory and thus reference more memory than is physically present in the...
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MVS (redirect from Multiple Virtual Storage)
available real storage, as did SVS, but also allowed an indefinite number of applications to run in different address spaces. Two concurrent programs might...
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Caustic Graphics (category Electronics companies established in 2006)
in 2013. The CausticOne PCIe card had two FPGA implementations of the RTU running at 100Mhz each with a single channel DDR2 memory for scene storage and...
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Microcode (redirect from Micro-program)
difficult to generate using a compiler." A simulator program is intended to execute the bits in the same way as the electronics, and allows much more...
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Operating system (section Real-time)
different CPUs can speed up a program, depending on how much of it can be executed concurrently. Permanent storage devices used in twenty-first century computers...
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DOS/360 and successors (section Program libraries)
released in 1990 with support for up to 384 MB of real storage. It provided up to twelve static partitions and allowed VSE/POWER and ACF/VTAM to be run in private...
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data storage device Docker (software), a file which represents containerized application Executable, a computer file containing an executable program; short...
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Dartmouth Time-Sharing System (category Computer-related introductions in 1964)
named program from storage to memory RENAME – to change the name of the program in memory RUN – to compile and execute the current program in memory...
30 KB (3,792 words) - 01:08, 28 May 2025