Test: Computer Architecture - 2 - Bank Exams MCQ

The instruction cycle, commonly referred to as the machine cycle, describes the series of actions that occur when an instruction is read from memory and carried out.

The next instruction to be fetched from memory is included in the address of the memory location that the programme counter stores. After an instruction has been fetched, the PC is automatically increased.

After arithmetic and logical instructions have been completed, the ALU stores the interim result in the accumulator. The accumulator serves as the conduit for all data transfers between the central processor unit and each device or port.

The tools we use to enter data into the computer are known as input devices. They establish a link between the user and the computer. Input devices convert information from a human-readable form to one that the computer can interpret.

Data can move both to and from the CPU on the data bus, which is bidirectional. Contrarily, the address and control buses are unidirectional and spread information from the processor to the other linked devices.

Small Computer System Interface (SCSI) is a universal parallel i/o interface that allows you to connect a variety of peripheral devices to a single I/O bus.

A central processing unit, often known as a processor, has numerous special-purpose registers for various uses. They are the Memory address register, Instruction register and PC.

A location or physical address is the name given to an address in the main memory. The collection of these places is referred to as the memory space and includes the real main memory locations that can be directly addressed for processing.

A macro is a sort of instruction that can generate many lines of machine language code. The computer language VBA (Visual Basic for Applications) is used to create macros in Excel. The purpose of employing a macro code is to automatically do an Excel task that would otherwise require manual labor.

In computing, an opcode (abbreviated from operation code, also known as instruction machine code, instruction code, instruction syllable, instruction parcel, or string) is the portion of a machine language instruction that specifies the operation to be performed.