Describe the size and speed of scanners, Computer Engineering

Assignment Help:

Q. Describe the Size and Speed of Scanners?

Before actual scanning, a quick, low resolution scan known as pre-scan is made to preview the image and select scanning area. After this only does actual scan take place. Early colour scanners used to take 3 passes for a scan - one pass for every colour.  Now Scanners use only one pass and use photodetectors to detect colours.  Then, they operate as fast as monochrome Scanners.  Though other issues are also included. 

High resolution scans of large images outcomes in large file sizes. These can slow down processing because they require Hard Disk I/O for virtual memory.  Hence forward for large scans it is essential to have higher RAM in your PC.


Related Discussions:- Describe the size and speed of scanners

Skip to line line number, The "SKIP TO LINE line number" is dependent on wh...

The "SKIP TO LINE line number" is dependent on which statement included in the report statement of the program. The "SKIP TO LINE line number" is dependent on "LINE-COUNT" stat

Multisim simulation file, Build the circuit using the Asynchronous Counter ...

Build the circuit using the Asynchronous Counter Technique with JK FF and relevantgates capable of executing the counting sequence as {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}Simulate the cir

What will occur when contents of register are shifter left, What will occur...

What will occur when contents of register are shifter left, right? This is well known that into left shift all bits will be shifted left and LSB will be appended along with 0 a

Explain the t flip flop, Explain the T Flip Flop? The toggle, or T, fli...

Explain the T Flip Flop? The toggle, or T, flip-flop is the bistable device that changes state on command from a common input terminal.   Truth Table

Rsa encryption function- cryptography, The general method for constructing ...

The general method for constructing the parameters of the RSA cryptosystem can be described as follows: Select two primes p and q Let N = pq and determine ∅ (N) = (p - 1

What are the benefits of web-based spreadsheets, What are the Benefits of W...

What are the Benefits of Web-Based Spreadsheets? The spreadsheets can be accessed from any Internet-connected computer, not just the computer originally formed the spreadsh

Where traffic intensity can be measured, Traffic Intensity can be measured ...

Traffic Intensity can be measured in (A)  Erlangs                                    (B) CCS (C)  CM                                         (D) All of the above Ans:

What are the three basic types of web documents, What are the three basic t...

What are the three basic types of web documents? There are three fundamental types of web documents: Static, Dynamic and Active. STATIC A static web document resides i

What is boyce codd normal form, A relation schema R is in BCNF with respect...

A relation schema R is in BCNF with respect to a set F of functional dependencies if for all functional dependencies in F+ of the form a->b, where a and b is a subset of R, at leas

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd