Computer - Input Devices
- Keyboard.
- Mouse.
- Joy Stick.
- Light pen.
- Track Ball.
- Scanner.
- Graphic Tablet.
- Microphone.
10 Digital Data Storage Devices for Computers
- Hard Drive Disks.
- Floppy Disks.
- Tapes.
- Compact Discs (CDs)
- DVD and Blu-ray Discs.
- USB Flash Drives.
- Secure Digital Cards (SD Card)s.
- Solid-State Drives (SSDs)
1) In general, a device is a machine designed for a purpose. The term peripheral (a truncation of peripheral device ) is sometimes used as a synonym for device or any input/output unit.
RAM, which stands for random access memory, and ROM, which stands for read-only memory, are both present in your computer. RAM is volatile memory that temporarily stores the files you are working on. ROM is non-volatile memory that permanently stores instructions for your computer.
Whereas memory refers to the location of short-term data, storage is the component within your computer that allows you to store and access data on a long-term basis. An important distinction between memory and storage is that memory clears when the computer is turned off.
A processor core (or simply “coreâ€) is an individual processor within a CPU. Many computers today have multi-core processors, meaning the CPU contains more than one core. For many years, computer CPUs only had a single core. Examples of Intel Core processors include the Core Duo, Core 2, Core i3, Core i5, and Core i7.
Examples and types of software
| Software | Examples | Program? |
|---|
| Internet browser | Firefox, Google Chrome, and Internet Explorer. | Yes |
| Movie player | VLC and Windows Media Player. | Yes |
| Operating system | Android, iOS, Linux, macOS, and Windows. | No |
| Photo / Graphics program | Adobe Photoshop and CorelDRAW. | Yes |
Software is the programs that are needed to accomplish the input, processing, output, storage, and control activities of information systems. Computer software is typically classified into two major types of programs: system software and application software.
Computer hardware is any physical device used in or with your machine, whereas software is a collection of codes installed onto your computer's hard drive. Word processing software uses the computer processor, memory, and hard drive to generate and save documents. In a computer, hardware is what makes a computer work.
Hardware or HW can be defined as all the physical components that are a part of a computer system. This means that all the devices that you can see on your computer can be characterized as computer hardware. For example, the screen of a computer that you see the second you turn on the device is hardware.
Windows Computers:
- Microsoft Windows 7 Operating System.
- 7-Zip.
- Adobe Acrobat Professional.
- Adobe Reader.
- Google Chrome.
- Microsoft Internet Explorer.
- Microsoft Office (Word, Excel, PowerPoint)
- Microsoft Windows Media Player.
RAM, which stands for random access memory, and ROM, which stands for read-only memory, are both present in your computer. RAM is volatile memory that temporarily stores the files you are working on. ROM is non-volatile memory that permanently stores instructions for your computer. Find out more about RAM.
Explanation: There are two main types of external hard drives, portable and desktop.
There are five main hardware components in a computer system: Input, Processing, Storage, Output and Communication devices. Are devices used for entering data or instructions to the central processing unit.
Classification of Computers
| Sr.No. | Type |
|---|
| 2 | Workstation |
| 3 | Mini-Computer |
| 4 | Main Frame |
| 5 | Super-Computer |
Answer:
- Supercomputer.
- Mainframe.
- Server Computer.
- Workstation Computer.
- Personal Computer or PC.
- Microcontroller.
- Smartphone.
Input devices are broken down into 3 categories: keyboards, pointing devices, and Data-Entry devices.
Classes by purpose
- Microcomputers (personal computers)
- Minicomputers (mid-range computers)
- Mainframe computers.
- Supercomputers.
- Servers.
- Workstations.
- Information appliances.
- Embedded computers.
The basic definition of a mobile device is simply “any computing device designed principally for portability.†By that definition, laptops should clearly be included in that scope. Logically, therefor, a laptop is, in fact, a mobile device.
More than 5 billion people in the world own mobile devices. According to GSMA real-time intelligence data, there are exactly 5.13 billion people in the world who own mobile devices. That is 66.5% of the world's population.
Two basic technologies in mobile phones, CDMA and GSM, represent a gap you can't cross.
A mobile device is an electronic device which its user can easily carry with them. Typical examples are a mobile phone, PDA and handheld game consoles. Smartphones, tablets and similar complicated mobile devices can run computer programs including computer games, and have many of the functions of a desktop PC.
A mobile device is a general term for any type of handheld computer. These devices are designed to be extremely portable, and they can often fit in your hand. Some mobile devices—like tablets, e-readers, and smartphones—are powerful enough to do many of the same things you can do with a desktop or laptop computer.
