IBM System/370 145 Manual page 118

Table 20.15.2.
KL
=
25
DL in Bytes
100
200
300
400
500
600
700
800
900
1000
2000
3000
4000
- - - -
Effective capacity of the 2305 Model 2 and the 2303 for
various block sizes (DL column) with a 25-byte key
1
Effective
2305 Model 2
2,688,000
4,300,800
5,529,600
6,144,000
6,912,000
7,372,800
7,526,400
7,987,200
8,294 .. 400
8 .. 448,000
9,216,000
9,216,000
9,216,000
1,200,000
1,760,000
1 .. 920,000
2.240,000
2.400,000
2,400,000
2,240,000
2.560,000
2.160,000
2 .. (~OO, 000
1,600,000
2.400,000
3,200,000
Table 20.15.3. Effective capacity of the 2305 Model 2 and the 2303 for
various block sizes (DL column) when records are written
without key
KL
=
0 Effective capacity in Bytes
DL in Bytes 2305 Model 2
I
2303
100 3,763,200 1,600,000
200
5,683.200
2,080,000
300 6,681.600
2,400,000
400
7,372.800
2.560,000
500 8,064 .. 000
2,400,000
600 8,294,400
2,400,000
700 8,601.600 2.800,000
800
8,601.600
2,560,000
900 8,895.600 2.880,000
1000 9,216.000
2,400,000
2000 9,216,000
1.600,000
3000 9,216,000 2.400,000
4000 9,216.000 3,.200,000
- - - - .
20:20 THE 3211 PRINTER
The 3211 is a high-speed line printer with front printing and new
features designed to reduce operator intervention. The 3211 can print
2000 alphameric lines per minute (with a 48-character set) and is
designed to be used in any installation that has a high volume of print
activity. The 3211 attaches to all System/370 models and System/360
Models 30 and up.
The 3211 has a standard 132-print-position line. which can be
expanded to 150 positions as an option. The
nu~ber
of print positions
does not affect printing speed. The Universal Character Set (UCS)
feature is standard, and the 3216 Interchangeable Train Cartridge
contains 432 graphics. The cartridge character arrangement is
unrestricted and can be alphabetic. numeric, or special characters in
any combination. When the character arrangement is optimized for
specific printing loads. speeds of up to 2500 lines per minute can be
attained.
108 A Guide to the IBM System/370 Model 145