Lesson 1 (Introduction to computer systems) Flashcards
A computer will only respond when a command is given to the device. These commands can be given using the input unit or the input devices.
Imput Unit
When we command a computer to perform a task, it reverts for the action performed and gives us a result.
Output Unit
When we enter the data into the computer using an input device, the entered information immediately gets saved in the memory unit of the Central Processing Unit (CPU).
Memory Unit
collects the data entered using the input unit, leads it on for processing and once that is done, receives the output and presents it to the user.
Control Unit
As the name suggests, all the mathematical calculations or
arithmetic operations are performed in the Arithmetic and Logical Unit of the CPU.
It can also perform actions like a comparison of data and decision-making actions.
Arithmetic & Logical Unit
It is a computer that is at the front-line of current processing capacity, particularly speed of calculation.
SUPER COMPUTER (Types of computer)
. It is a computer that is capable of handling and processing very large amounts of data quickly. Its calculation speed can reach millions to tens of millions instructions per second (MIPS) and it can respond to hundreds of millions of users at a time.
Main Frame Computer (Types of computer)
class of multi-user computers that lie in the middle range of the computing spectrum, in between the smallest mainframe computers and the largest single-user systems (microcomputers or personal computers).
Mini Computer (Mid-Range Computer)
(Types of computer)
” was introduced with the advent of systems based on single chip microprocessors. In the early days, the blank would still have been too expensive to be owned by a single individual. But in the late 20th century, blank became the most common type of computer.
Micro Computer (Personal Computer)
(Types of computer)
A server refers to a high-performance computer that provides shared information resources and various services for many users on the network at the same time in a network environment.
Server Computer (Super computer)
principal part of any digital computer system, generally composed of the main memory, control unit, and arithmetic-logic unit. It constitutes the physical heart of the entire computer system; to it is linked
various peripheral equipment, including input/output devices and auxiliary storage units. In modern computers, the CPU is contained on an integrated circuit chip called a microprocessor
CPU
is a specialized electronic circuit designed to manipulate and alter memory to accelerate the creation of images in a frame buffer intended for output to a display device. GPUs are used in embedded systems, mobile phones, personal computers, workstations, and game consoles
GPU
An blank 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 an operating system, a computer is useless
operating system
(software application, or application, or app for short) is a computer program designed to carry out a specific task other than one relating to the operation of the computer itself, typically to be used by end-users. Word processors, media players, and accounting software are examples.
Application system
