IT Essentials Chapter 1 Part 1 Exam

The correct answer is "Central Processing Unit." The CPU is the main component of a computer that performs most of the processing inside the computer. It interprets and executes instructions from the computer's memory, performs calculations, and manages the flow of data between different parts of the computer. The CPU is often considered the "brain" of the computer, as it carries out the majority of the computer's operations.

RAM stands for Random Access Memory. This is a type of computer memory that allows data to be stored and retrieved in any order, rather than sequentially. It is called "random access" because the computer can access any piece of data stored in RAM directly, without having to read through all the preceding data. This makes RAM much faster to access than other types of memory, such as hard drives. RAM is used by computers to temporarily store data that is actively being used by the CPU, allowing for quick and efficient processing.

SRAM stands for Static Random Access Memory. It is a type of computer memory that retains data as long as power is supplied to the system. Unlike Dynamic RAM (DRAM), SRAM does not need to be constantly refreshed and is faster and more reliable. Therefore, the correct answer is Static Random Access Memory.

ROM stands for Read Only Memory. This type of memory is non-volatile, meaning that the data stored in it is not lost when the power is turned off. ROM is used to store permanent data and instructions that cannot be altered or overwritten by normal computer operations. It is commonly used to store firmware, which is software that is permanently programmed into a hardware device.

RAM or random access memory only works when the computer is on. Data is can be volatile and the RAM chip/module will only store data when the computer is on.

The correct answer is "inputs, process, outputs." This answer accurately describes the basic functions of a computer. Inputs refer to the data or information that is entered into the computer, processes refer to the actions or operations performed on the inputted data, and outputs refer to the results or information produced by the computer after processing the input. This answer encompasses the fundamental operations of a computer system.

An RJ-45 cable is commonly used for Ethernet connections, which are used to connect devices to a network. Therefore, the correct answer is "Network port" as this is the port where the RJ-45 cable would be inserted to establish a network connection.

Heat Sink and Fan are the two hardware components used to cool off the computer. A heat sink is a passive cooling device that absorbs and dissipates heat from the computer's central processing unit (CPU) or other components. It helps to maintain the temperature within safe limits. On the other hand, a fan is an active cooling device that circulates air and helps in dissipating heat from the computer. Together, these components work to prevent overheating and ensure the proper functioning of the computer.

Monitors and printers are both output devices. Monitors display information visually, while printers produce hard copies of documents or images. The mouse and scanner, on the other hand, are input devices. The mouse allows users to interact with the computer by moving the cursor and selecting items, while a scanner is used to input physical documents or images into a digital format. Therefore, the correct answer is A & B only.

The power supply converts electricity from the wall socket into Direct Current. Direct Current is a type of electrical current that flows in one direction only, providing a steady and constant flow of electricity. This is the type of current that most electronic devices and appliances require to function properly.

All of the given choices are input devices. A mouse is an input device used to control the cursor on a computer screen. A keyboard is an input device used to input text and commands. A scanner is an input device used to convert physical documents or images into digital format. A headset can also be considered an input device as it is used to input audio into the computer. Therefore, all of the above choices are correct.

Alternating current comes from the wall.

Cache is a type of memory that stores frequently accessed information for faster retrieval. It is designed to reduce the time taken to access data from the main memory by keeping a copy of frequently used data closer to the processor. This helps in improving the overall performance of the system by reducing the latency involved in fetching data from the main memory. Therefore, cache is the correct term to describe the memory that saves frequent information.

The given answer includes three types of storage devices: Hard Disk Drives (HDD), Solid State Drives (SSD), and Floppy Disk Drives (FDD). These devices are commonly used for storing and retrieving data on computers and other electronic devices. HDDs and SSDs are modern storage devices that use magnetic and flash memory technology respectively, while FDDs are older and less commonly used due to their limited storage capacity. PATA Drives (PDD) is not included in the answer, possibly because it is not a widely recognized or commonly used storage device.

The correct answer includes all the different types of RAM (Random Access Memory) available. These types include Dual In-line Memory Module (DIMM), Single In-line Memory Module (SIMM), Ram Bus Inline Memory Module (RIMM), Small Outline Memory Module (SODIMM), and Dual Inline Package (DIP). Each of these types has its own unique characteristics and is used in different devices and systems to provide memory storage and access.

The correct answer is "Layout and size of a case" and "Different types of motherboards". A form factor refers to the physical layout and dimensions of a computer case or motherboard. It determines the compatibility and arrangement of various components within the case, such as the motherboard, power supply, and expansion slots. Different form factors exist for different types of computers, such as desktops, laptops, and servers. It is important to consider the form factor when building or upgrading a computer system to ensure proper fit and compatibility of components.

All of the above are expansion slots.

The correct answer includes all the options listed. Adapter cards are devices that allow for the connection of different types of hardware to a computer. Sound adapters, video adapters, network interface cards, wireless NICs, and modem adapters all fall under this category as they provide the necessary connections for their respective functions. PCI Express is not an adapter card itself, but rather a type of interface used for connecting adapter cards to a computer's motherboard.