Computer fundamental MCQ Questions and answers- Technical Aptitude

The most common technique to change an analog signal to digital data is called pulse code modulation (PCM). A technique used by codes to convert an analog signal into a digital bit stream is known as Pulse code modulation.

Optical mark recognition (also called optical mark reading and OMR) is the process of capturing human-marked data from document forms such as surveys and tests.

A program that converts computer data into some code system other than the normal one is known as encoder. Encoder is used for the same purpose (means to convert information to machine code) and Decoder is just opposite of encoder.

Dynamic random-access memory (DRAM) is a type of random access semiconductor memory that stores each bit of data in a separate tiny capacitor within an integrated circuit.

Memory caching is a technique in which computer applications temporarily store data in a computer's main memory to enable fast retrievals of that data. The RAM that is used for the temporary storage is known as the cache.

A memory cache, sometimes called a cache store or RAM cache, is a portion of memory made of high-speed static RAM (SRAM) instead of the slower and cheaper dynamic RAM (DRAM) used for main memory. Memory caching is effective because most programs access the same data or instructions over and over.

BIOS (Basic Input Output System) software is stored on a non-volatile ROM chip on the motherboard. In modern computer systems, the BIOS contents are stored on a flash memory chip so that the contents can be rewritten without removing the chip from the motherboard.

A hard disk drive (HDD), hard disk, hard drive, or fixed disk is an electro-mechanical data storage device that stores and retrieves digital data using magnetic storage and one or more rigid rapidly rotating platters coated with magnetic material. The platters are paired with magnetic heads, usually arranged on a moving actuator arm, which read and write data to the platter surfaces. Data is accessed in a random-access manner, meaning that individual blocks of data can be stored and retrieved in any order. HDDs are a type of non-volatile storage, retaining stored data even when computer powered off.

PCI (peripheral component interconnect) is an interface standard for connecting high-speed components. Every desktop PC motherboard has a number of PCI slots you can use to add GPUs, RAID cards, Wi-Fi cards or SSD (solid-state drive) add-on cards.

Microsoft currently uses Intel-based processors for the majority of its Azure cloud services, and most of the company's Surface lineup run on Intel chips, too. We reached out to Microsoft to comment on the rumors, and the company didn't deny them.