How to operate computer parts essay in english.
Answers
Explanation:
The central processing unit is the serving of a computer system that carries out the instructions of a computer program. It is main part carrying out the computer’s roles. The central processing unit transfers out each instruction of the program in order, to perform the basic arithmetical, logical, and input/output operations of the system.The CPU has many different purposes which can be moving data from one location to another, building decisions and jumping to a new set of orders based on those decisions. The CPU’s speed is a measure of MHz (megahertz) or more recently GHz (gigahertz). A chip with a megahertz rating of 900 MHz would be able to complete 900Million cycles every second.
The types of CPU:
AMD (Advanced Micro Devices)
Intel Celeron
RAM (Random Access Memory):
RAM is a memory facility which provides space for your computer to read and write data to be accessed by the CPU (central processing unit). When people mention to a computer’s memory, they usually mean its RAM. The programs and data that we use are stored in the RAM temporarily so that the processor can access them fast. RAM is used to load and run programs or applications on a computer’s are operating system. Extra RAM means more applications and programs can be run simultaneously. The speed is measured in MHz, (or megahertz). The capacity of RAM is measured in bits, bytes, kilobytes, megabytes, gigabytes, terabytes and the typical capacity of RAM in a PC is 512MB to 8GB.There are other types of RAM which are;
SDRAM (synchronous dram)
DDR(double data ratter)
Rambus Dram (RDRMM)
ROM (Read Only Memory):
Is a class of storage media used in computers and other electronic devices. Data stored in ROM cannot be modified, or can be modified only slowly or with difficulty, so it is mainly used to distribute firmware. The BIOS software is built into the PC, and is the first code run by a PC when powered on (‘boot firmware’). The primary function of the BIOS is to load and start an operating system. BIOS software is stored on a non-volatile ROM chip built into the system on the mother board. The first job for the BIOS is to initialize and identify system devices such as the video display card, keyboard and mouse, hard disk, CD/DVD drive and other hardware.
These are the types of ROM:
Mask-Programmed ROM (MROM)
Programmable ROM (PROM)
Erasable-Programmable ROM (EPROM)
Electrically Erasable PROM (EEPROM)
Input devices:
Input devices are any piece of computer hardware equipment used to provide data and give in information to the computer. They allow us to enter the information and data into the computer.E.g.
Mouse:
Is an input device which inputs information by clicking the mouse and being able to move the arrow in the monitor by using the mouse. Mouse can display mainframe data records that contain a leading 4 byte record length counter. With proper options, mouse can add carriage returns to fixed length records.
Types of mouse:
laser mouse
mechanical mouse
cordless mouse
KEYBORAD:
The set of typewriter – like keys that enables you to enter data into a computer. Computer keyboards are similar to electric-typewriter keyboards but contain additional keys. It control the computer and purposes includes a plurality of sets of two or more keys arranged for receiving the tips of the finger of a hand of an operator, the keys of each set have such a small superficial touch area and are clustered together. So as to be substantially comprehended and selectively operated by a single finger tip of an operator. There different types of keyboards:
Ergonomic Keyboards
Wireless keyboards
Illuminated keyboards
Output Devices:
Output Devices are used to communicate the outcomes of data processing carried out by information to the computer to the outside world. Which we get information out of the computer.
E.g.
Printers will print anything that in on that is on the monitor onto paper. This can be pictures, words and numbers.
Monitor
Monitor is a device that displays images or symbols generated by computers, an output device that is a part of your computer display system. They
Serve as the visual display to help you navigate your computer. Also to display text and graphics, produced by a computer. The resolution is the measurement of the number of pixels that a computer displays, also called a computer monitor, can show at one time. Monitors that display more pixels offer a sharper, brighter image. Monitors are measured in inches, diagonally from top left to bottom right.
Types of monitors:
CRT (Cathode Ray Tube) Monitor
LCD (Liquid Crystal Display) Monitor