1. Write down the full form for the following:
PROM, OCR
2. Which part of the memory contains the BIOS?
3. What is the basic unit of memory?
* Why is RAM and ROM also called immediate access storage?
5. Why is the computer keyboards also called Qwerty keyboard?
6. How is optical mouse different from mechanical Mouse?
. Which pointing device is mostly used for gaming purpose?
8. Which input device is widely used in banks to read the cheques?
9. What is the one difference between impact and non impact printer?
10. If you have to do video conferencing which device will you use?
Answers
Answer:
1 programmable read only memory PROM
optical character recognition OCR
Answer:
2. flash memory
Originally, BIOS firmware was stored in a ROM chip on the PC motherboard. In modern computer systems, the BIOS contents are stored on flash memory so it can be rewritten without removing the chip from the motherboard.
3.Bits and bytes are the basic building blocks of memory. "Bit" stands for binary digit. A bit is a one or a zero, on or off, which is how all computer information is stored. A byte is made up of eight bits.
4.Primary storage is also known as Immediate Access Storage and is where data is stored on the main computer memory. An example of primary storage is RAM (Random Access Memory - otherwise referred to as RWM (Read Write Memory).
5.The arrangement of the first six letters in the top alphabet row of a standard keyboard QWERTY goes way back. The layout was created in 1873 when Christopher Latham Sholes made improvements to his earlier typewriter models in order to design a quicker and more efficient typewriter for EE
6.Introduced in the late 1990s, optical mice superseded mechanical mice because their sealed bottom surfaces do not absorb dust and dirt. They work by emitting light from an LED or laser, and a CMOS sensor detects the light reflections as the mouse is moved. ... Contrast with mechanical mouse.
7.mouse
Answer. Explanation: While the most common pointing device by far is the mouse, many more devices have been developed. However, the term "mouse" is commonly used as a metaphor for devices that move the cursor.
8.Magnetic ink character recognition code, known in short as MICR code, is a character recognition technology used mainly by the banking industry to streamline the processing and clearance of cheques and other documents.
9.Impact and Non-Impact Printers are two categories of the printer. Impact printers involve mechanical components for conducting printing. While in Non-Impact printers, no mechanical moving component is used.
10.It is the input devices used in video conferencing. Using a webcam on your computer or laptop is the basic requirement for the signal being transferred to the other person. There are those that also use advanced features like zoom, tilt or pan in a remote control setting.
Explanation:
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