COMPUTER COURSES IN CHANDIGARH
A complete computer system consists of four parts: ● Hardware: Hardware represents the physical and tangible components of the computer. ● Software: Software is a set of electronic instructions consisting of complex codes (Programs) that make the computer perform tasks. ● User: The computer operators are known as users. ● Data: Consists of raw facts, which the computer stores and reads in the form of numbers.
The following features characterize this electronic machine: ● Speed ● Accuracy ● Storage and Retrieval ● Repeated Processing Capabilities ● Reliability ● Flexibility ● Low cost
Digital Computers ● These computers take the input in the form of digits & alphabets & converted it into binary format. ● Digital computers are high speed, programmable electronic devices. ● Signals are two level of (0 for low/off 1 for high/on). ● Accuracy unlimited. ● Examples: Computer used for the purpose of business and education is also an example of digital computers.
Hybrid Computer The combination of features of an analog and digital computer is called a Hybrid computer. The main examples are central national defence and passenger flight radar system. They are also used to control robots.
Supercomputer The biggest in size. Most Expensive It can process trillions of instructions in seconds. This computer is not used as a PC in a home neither by a student in a college. Used by Govt. for different calculations and heavy jobs. Supercomputers are used for the heavy stuff like weather maps, construction of atom bombs, earthquake prediction etc.
These three steps constitute the data processing cycle. â—? Input -Input data is prepared in some convenient form for processing. The form will depend on the processing machine. For example, when electronic computers are used, the input data could be recorded on any one of several types of input medium, such as magnetic disks, tapes and so on. â—? Processing - In this step input data is changed to produce data in a more useful form. For example, paychecks may be calculated from the time cards, or a summary of sales for the month may be calculated from the sales orders. â—? Output - The result of the proceeding processing step are collected. The particular form of the output data depends on the use of the data. For example, output data may be pay-checks for employees.
Address SCO 23-24-25, Sector 34A, Chandigarh, IN 160022 Phone +91 172-503-1983, +91 99-8874-1983 Email counselor.cbitss@gmail.com
http://cbitss.co.in/
THANK YOU