signaled the end of the punched card era was the launch in 1959 of the IBM 1401 computer, which had magnetic tape and disk storage. The keyboard has dominated interactive personal computing and voice input devices have not proven to be reliable. Future hands-free wireless infrared input devices may include a wand with a walk-around button, a ring on the index finger, and a reflective dot that sticks to the user's forehead and signals
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memory, and programmable input/output peripherals. Program memory in the form of NOR flash or OTP ROM is also often included on chip, as well as a typically small amount of RAM. Microcontrollers are designed for embedded applications, in contrast to the microprocessors used in personal computers or other general purpose applications. Microcontrollers are used in automatically controlled products and devices, such as automobile engine control systems, implantable medical devices, remote controls, office
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a telephone or doorbell ringing, some must not be ignored, such as getting a flat tire on the freeway - you must deal with them as soon as possible. The alternative to a system with Interrupts is to use Polling, a system where we must look at each device periodically to see if our services are required. Imagine having a telephone without a bell, you would have to lift the receiver regularly to see if anyone was on the line. Whatever their cause, interrupts are essentially requests for attention
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INTRODUCTION HDFC slic is one of the leading private company. It is the first private sector life insurance company to be granted a certificate of registration on 23rd October from IRDA. IT is a joint venture between Housing Development Finance Corporation, India’s leading housing finance institution and a group company of standard life , UK. Standard life ,UK, founded in 1825, has been at fore front of UK INDUSTRY for 175 years by combining sound financial judgement with integrity and reliability
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C 2: B 3: C 4: A, E 5: A 6: C 7: B 8: A 9: BCD 10: A 11: B 12: BD 13: C 14: A, C 15: B 16: D 17: B 18: B 19: B 20: B Key Terms Computer- Device that processes, receives in, thinks about, changes, stores, sends out, displays, and prints data in the form of bits. Bit- Smallest unit of data stored in a computing device; representing a single binary digit of value 1 or 0. Byte- A unit of data in a computer: 8 bits RAM- Short term computer memory storage, temporary working memory
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component. [RQ, no. 3]CPU – is the computer’s brain, which processes the information, performs calculations, and makes basic decisions by comparing values. It performs the transformation of input to output.Storage – serve as long-term repositories for dataInput Device – accept input from the outside worldOutput Device – send information to the outside worldMemory – used to store programs/data to be instantly available 6. Why is the international computer industry shifting from ASCII to Unicode for
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BIOS (basic input/output system) is the program a personal computer's microprocessor uses to get the computer system started after you turn it on. It also manages data flow between the computer's operating system and attached devices such as the hard disk , video adapter , keyboard , mouse , and printer . BIOS is an integral part of your computer and comes with it when you bring it home. (In contrast, the operating system can either be pre-installed by the manufacturer or vendor or installed by
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CSC-105 NE Spring 2016 Study Guide – Chapters 1, 2, 3 & 4 &Videos Chapter 1: Introduction to Information Technology: The Future Now 1. Robots – automatics devices that perform functions ordinarily performed by human beings 2. Online learning (Distance learning) - is designed to provide students with additional learning opportunities & instructors with additional teaching tools (e-learning) 3. Telemedicine, Campus Cruiser (portals) – medical care via telecommunications - 4. Computer / IT uses 5. Cyberspace
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CSC 213 ARCHITECTURE ASSIGNMENT QUESTION 1 2.1. What is a stored program computer? A stored program computer is a computer to use a stored-program concept. A stored-program concept is the programming process could be facilitated if the program could be represented in a form suitable for storing in memory alongside the data. Then, a computer could get its instructions by reading them from memory, and a program could be set or altered by setting the values of a portion of memory.
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at the software level media must be checked for data controversy ; for instance whether the number of allocated and unallocated blocks of storage match the total numbers on device .there ,errors are frequently process independent (for instance , the corruption of data on a disk ), so there must be a global program (the operating system ) that handles all types of errors also , by having errors processed by the operating system
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