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 IGNOU BCA second semester subject MCS12 IMPORTANT Questions with answers Question: Explain the immediate addressing and indirect addressing with the help of one example of each. Answer 👇 Immediate addressing : Immediate addressing is a method of addressing in computer programming where the actual value is directly provided as part of the instruction itself. In this mode, the operand is specified within the instruction, and the CPU directly uses that value for the operation. This means that the data is not fetched from memory or another register. Example : Let's say we have a simple assembly instruction that adds the value 10 to a register called "A". The instruction might look like this: ADD A, 10 In this example, the number 10 is provided directly in the instruction itself. When the CPU encounters this instruction, it immediately adds the value 10 to the contents of register A without fetching the data from memory. Indirect Addressing : Indirect addressing is a method

IGNOU BCA second semester MCS012 theory important Questions with answers 👉 Join telegram group 👉 Subscribe YouTube channel Question Define the following terms: 1. Scan code in the context of a keyboard 2. Impact printer. Answer 1. Scan code in the context of a keyboard: In the context of a keyboard, a scan code refers to a unique identifier assigned to each key on a keyboard. When a key is pressed or released, the keyboard's hardware generates a scan code corresponding to that key. The scan code is then sent to the computer, which interprets it and performs the appropriate action, such as displaying the corresponding character on the screen or triggering a specific function associated with that key. Scan codes are typically standardized to ensure compatibility across different keyboards and computer systems. 2. Impact printer : An impact printer is a type of printer that creates printed output by physically striking an inked ribbon against the paper. These printers work by using

IGNOU BCA second semester MCS012 Theory important Questions with answers 👉👉 Join Telegram group 👉👉 Subscribe YouTube channel Disk Layout & Characteristics Question Explain the disk layout of magnetic disk. Also, explain the physical characteristics of magnetic disk. Answer The disk layout of a magnetic disk refers to the organization and structure of the data on the disk. Magnetic disks, such as hard disk drives (HDDs), consist of multiple platters stacked on a spindle. Each platter is coated with a magnetic material and is divided into concentric circles called tracks. These tracks are further divided into smaller units called sectors. The arrangement of tracks and sectors forms a grid-like pattern on the disk surface. The disk layout typically follows a cylindrical geometry, where corresponding tracks on each platter are aligned vertically. This arrangement allows the read/write heads to move across multiple platters simultaneously, improving data access speeds. The physical