Computer sciences
A program which processes data in batches
The computer’s main circuit board. It holds the CPU, RAM modules, and most of the circuitry. All adapter cards plug into it. It defines how much RAM, adapter cards, and the type of CPU the computer is going to have.
It sends the visual output that a program produces to the monitor, which displays it on the screen. For gamers and others who use very high end graphics or special video work regularly, the it is the most expensive part of the computer. These cards also run very hot and most have a fan on the side.
It holds “short term” information for the processor to use. This may be a program or a set of data. The processor is able to retrieve information from it at very high speeds. When the processor needs information that is not in it, it has to read the information from the hard drive, which is much slower.
It is the brain of the computer and the most important chip in the computer. When a program is run, it performs the calculations and carries out the commands.
The monitor works with a ... located inside the computer case, to display images and text on the screen.
Any part of your computer that has a physical structure, such as the keyboard or mouse. It also includes all of the computer's internal parts, which you can see in the image below.
Any set of instructions that tells the hardware what to do and how to do it. Examples of software include web browsers, games, and word processors. Below, you can see an image of Microsoft PowerPoint, which is used to create presentations.
A computer that serves up information to other computers on a network. For example, whenever you use the Internet, you're looking at something that's stored on a server. Many businesses also use local file ... to store and share files internally.
Handheld computers that are even more portable than laptops. Instead of a keyboard and mouse, they use a touch-sensitive screen for typing and navigation.
The computer case is the metal and plastic box that contains the main components of the computer, including the motherboard, central processing unit (CPU), and power supply. The front of the case usually has an ... and one or more optical drives.
The mouse is another important tool for communicating with computers. Commonly known as a pointing device, it lets you point to objects on the screen, click on them, and move them.
There are two main mouse types:
Touchpad: A touchpad—also called a trackpad—is a touch-sensitive pad that lets you control the pointer by making a drawing motion with your finger. Touchpads are common on
This is where you'll connect the power cord to the computer.
Almost every computer has two or more audio ports where you can connect various devices, including speakers, microphones, and headsets.
This port looks a lot like the modem or telephone port, but it is slightly wider. You can use this port for networking and connecting to the Internet.
This port is less common on today's computers. It was frequently used to connect peripherals like digital cameras, but it has been replaced by USB and other types of ports.
These empty slots are where expansion cards are added to computers. For example, if your computer did not come with a video card, you could purchase one and install it here.
Serial Port
Printers: A printer is used to print documents, photos, and anything else that appears on your screen. There are many types of printers, including inkjet, laser, and photo printers. There are even all-in-one printers, which can also ...
A web camera—or webcam—is a type of input device that
The motherboard is the computer's main circuit board. It's a thin plate that holds ____________ ___________ ___________ __________ ___________. The motherboard connects directly or indirectly to every part of the computer.
RAM is your system's short-term memory. Whenever your computer performs calculations, it temporarily stores the data in the RAM until it is needed.
This short-term memory disappears when the computer is turned off. If you're working on a document, spreadsheet, or other type of file, you'll need to save it to avoid losing it. When you save a file, the data is written to the hard drive, which acts as long-term storage.
RAM is measured in ______________ and _______________. The more RAM you have, the more things your computer can do at the same time. If you don't have enough RAM, you may notice that your computer is sluggish when you have several programs open. Because of this, many people add extra RAM to their computers to improve performance.
The hard drive is where your software, documents, and other files are stored. The hard drive is long-term storage, which means the data is still saved even if you turn the computer off or unplug it.
When you run a program or open a file, the computer copies some of the data from the hard drive onto the RAM. When you save a file, the data is copied back to the hard drive. The faster the hard drive, the faster your computer can _________________________.
The sound card—also called an audio card—is responsible for what you hear in the speakers or headphones. Most motherboards have integrated sound, but you can upgrade to a dedicated sound card for __________________________.
How is a laptop different from a desktop?
Because laptops are designed for portability, there are some important differences between them and desktop computers. A laptop has an all-in-one design, with a built-in monitor, keyboard, touchpad (which replaces the mouse), and speakers. This means it is fully functional, even when no peripherals are connected. A laptop is also quicker to set up, and there are fewer cables to get in the way.
You'll also have to the option to connect a regular mouse, larger monitor, and other peripherals. This basically turns your laptop into a desktop computer, with one main difference: You can easily disconnect the peripherals and take the laptop with you wherever you go.
Choose five main differences you can expect with a laptop.
It is the most important software that runs on a computer. It manages the computer's memory and processes, as well as all of its software and hardware. It also allows you to communicate with the computer without knowing how to speak the computer's language. Without it, a computer is useless.
You may have heard people talking about using a program, an application, or an app. But what exactly does that mean? Simply put, an app is a type of software that allows you to perform specific tasks. Applications for desktop or laptop computers are sometimes called desktop applications, while those for mobile devices are called mobile apps.
When you open an application, it runs inside the ...
A web browser is the tool you use to access the Internet. Most computers come with a web browser pre-installed, but you can also download a different one if you prefer. Examples of browsers include
Many computer cables will only fit a specific way. If the cable doesn't fit, _________________________________________________________. Make sure the plug aligns with the port, then connect it.
DCE
CTRL Break is the same to
Computer code is essentially a list of instructions that can be run by a certain program. Most code consists of plain-text documents so they can be used for many different programs. A unique file extension is given to the document to indicate the nature of the code. For example, a file created using Python is saved with a .py extension, like 'myprogram.py.' However, the actual content of the file is still just plain text.
Because most code is in plain text, you can write code using a basic word processor or text editor. However, it is much more effective to use a software application that is specifically designed for coding in a particular language. For example, when you write a document in plain English, you would use word processor software, which can assist you with things such as formatting, spelling, and grammar. Similarly, a code editor provides tools such as syntax checking. Syntax is to code what spelling and grammar are to writing English.
A code editor is also called an ___________, or IDE. An IDE is a software application for formatting your code, checking syntax, as well as running and testing your code. Some IDEs can work with multiple programming languages, while some are very specific for only one language.
Computer code is essentially a list of instructions that can be run by a certain program. Most code consists of plain-text documents so they can be used for many different programs. A unique file extension is given to the document to indicate the nature of the code. For example, a file created using Python is saved with a .py extension, like 'myprogram.py.' However, the actual content of the file is still just plain text.
Because most code is in plain text, you can write code using a basic word processor or ______________ . However, it is much more effective to use a software application that is specifically designed for coding in a particular language. For example, when you write a document in plain English, you would use word processor software, which can assist you with things such as formatting, spelling, and grammar. Similarly, a code editor provides tools such as syntax checking.
The control unit of the central processing unit _____ __ ____ the operations of the computer. It selects and retrieves instructions from the main memory in proper sequence and interprets them so as to activate the other functional elements of the system at the appropriate moment to perform their respective operations. All input data are transferred via the main memory to the arithmetic-logic unit for processing, which involves the four basic arithmetic functions (i.e., addition, subtraction, multiplication, and division) and certain logic operations such as the comparing of data and the selection of the desired problem-solving procedure or a viable alternative based on predetermined decision criteria.
Types of circuits (choose 4)
The first electronic digital computer called ENIAC was built in...
Computers have circuits for performing arithmetic operations, such as... (choose 4)
What was the minicomputer Xerox Alto (1973)?
MDGrade -3 was designed for...
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