Computer Hardware History Pdf

3 3 computer hardware basics computer hardware is divided into two main categories.

Computer hardware history pdf. The system unit and peripherals. The mainframe period of the 1950s 6 1. Network hardware isn t as clearly defined as some other types of computer hardware. We will represent on with the digit 1 and off with the digit 0.

Computer parts can be divided into two groups hardware and software. The instructions that tell it what to do are called software or program. The first of these was the transition from vacuum tube to transistor. This computer could understand only two instructions on or off.

It may not be modified and re distributed without the authors permission. Well perhaps less rather than more parts still perform the same overall functions as they once did. Computer hardware refers to the physical parts or components of a computer such as the monitor mouse keyboard computer data storage hard drive disk hdd system unit graphic cards sound cards memory motherboard and chips etc. A simple computer we are going to think of a computer as a group of switches.

Parts that were once hand made at a cost of thousands of man hours are now mass produced for a fraction of a rupee. The motherboard still serves as the computer s central hub with everything connecting to it. Every part of your computer is the result of years of research and development. Connector menu connector tutorial short tutorial heading first at each page there a short heading describing what the.

The system unit contains the electronic components used to process and temporarily store data and instructions figure 3 2. Leo lyons electronic office 5 4. The entry of ibm 6. Computer science and engineering history of computer hardware and software development arthur tatnall encyclopedia of life support systems eolss 5 3.

The hardware book is freely distributable but is copyrighted to joakim ögren. Stored program computers in operation by 1951 5 5. For example many home routers will often act as a combination router switch and firewall. The transistor was developed in the 1940 s and 50 s and applied to computers in the 60 s.

Ram still stores data for quick access and hard. The techencyclopedia 2003 defines computer as a general purpose machine that processes data according to a set of instructions that are stored internally either temporarily or permanently the computer and all equipment attached to it are called hardware. Each switch may be in one of two possible states on or off. Download pdf of basic computer hardware about basic computer hardware.

These components include the central process ing unit primary memory and the system board. In addition to all the items listed above there s more computer hardware called auxiliary hardware of which a computer might have none or several of some kinds. The most basic computer could be described as a machine with one switch. Beta release 8 chapter 1.